From 1fc11eeecd8927e407311c6f9e035cf3e5f8f9df Mon Sep 17 00:00:00 2001
From: Stephen Skeirik <stephen.skeirik@runtimeverification.com>
Date: Fri, 1 Nov 2024 12:45:02 -0400
Subject: [PATCH 01/15] remove imported kani code

---
 src/kani_lib/LICENSE-MIT       |  23 --
 src/kani_lib/kani_collector.rs | 593 ---------------------------------
 src/kani_lib/mod.rs            |   7 -
 src/lib.rs                     |   1 -
 src/main.rs                    |   1 -
 src/printer.rs                 |  20 +-
 6 files changed, 1 insertion(+), 644 deletions(-)
 delete mode 100644 src/kani_lib/LICENSE-MIT
 delete mode 100644 src/kani_lib/kani_collector.rs
 delete mode 100644 src/kani_lib/mod.rs

diff --git a/src/kani_lib/LICENSE-MIT b/src/kani_lib/LICENSE-MIT
deleted file mode 100644
index 31aa793..0000000
--- a/src/kani_lib/LICENSE-MIT
+++ /dev/null
@@ -1,23 +0,0 @@
-Permission is hereby granted, free of charge, to any
-person obtaining a copy of this software and associated
-documentation files (the "Software"), to deal in the
-Software without restriction, including without
-limitation the rights to use, copy, modify, merge,
-publish, distribute, sublicense, and/or sell copies of
-the Software, and to permit persons to whom the Software
-is furnished to do so, subject to the following
-conditions:
-
-The above copyright notice and this permission notice
-shall be included in all copies or substantial portions
-of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
-ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
-TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
-PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
-SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
-CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
-IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
-DEALINGS IN THE SOFTWARE.
diff --git a/src/kani_lib/kani_collector.rs b/src/kani_lib/kani_collector.rs
deleted file mode 100644
index 0675235..0000000
--- a/src/kani_lib/kani_collector.rs
+++ /dev/null
@@ -1,593 +0,0 @@
-use std::iter::Iterator;
-use std::vec::Vec;
-extern crate rustc_data_structures;
-extern crate rustc_hir;
-extern crate rustc_middle;
-extern crate rustc_monomorphize;
-extern crate rustc_span;
-extern crate rustc_smir;
-extern crate stable_mir;
-// use rustc_hir::{def::DefKind, definitions::DefPath};
-use tracing::{debug, debug_span, trace};
-use rustc_data_structures::fx::FxHashSet;
-use rustc_data_structures::fingerprint::Fingerprint;
-use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
-use rustc_hir::lang_items::LangItem;
-use rustc_middle::traits::{ImplSource, ImplSourceUserDefinedData};
-use rustc_middle::ty::adjustment::CustomCoerceUnsized;
-use rustc_middle::ty::{TyCtxt, Ty, ParamEnv, VtblEntry, TraitRef};
-use rustc_smir::rustc_internal;
-use stable_mir::{CrateItem,CrateDef,ItemKind,mir::{Body,ConstOperand},mir::mono::{Instance, InstanceKind, MonoItem, StaticDef}};
-use stable_mir::mir::{visit::Location, MirVisitor, Rvalue, CastKind, PointerCoercion, Terminator, TerminatorKind};
-use stable_mir::ty::{RigidTy, ClosureKind, ConstantKind, Allocation, Ty as TyStable, TyKind as TyKindStable};
-use stable_mir::mir::alloc::{AllocId, GlobalAlloc};
-use stable_mir::Symbol;
-
-pub fn collect_all_mono_items(tcx: TyCtxt, initial_mono_items: &[MonoItem]) -> Vec<MonoItem> {
-  let mut collector = MonoItemsCollector::new(tcx);
-  for item in initial_mono_items {
-    collector.collect(item.clone());
-  }
-
-  tcx.dcx().abort_if_errors();
-  // Sort the result so code generation follows deterministic order.
-  // This helps us to debug the code, but it also provides the user a good experience since the
-  // order of the errors and warnings is stable.
-  let mut sorted_items: Vec<_> = collector.collected.into_iter().collect();
-  sorted_items.sort_by_cached_key(|item| to_fingerprint(tcx, item));
-  sorted_items
-}
-
-struct MonoItemsCollector<'tcx> {
-  /// The compiler context.
-  tcx: TyCtxt<'tcx>,
-  /// Set of collected items used to avoid entering recursion loops.
-  collected: FxHashSet<MonoItem>,
-  /// Items enqueued for visiting.
-  queue: Vec<MonoItem>,
-}
-
-impl<'tcx> MonoItemsCollector<'tcx> {
-  pub fn new(tcx: TyCtxt<'tcx>) -> Self {
-    MonoItemsCollector {
-      tcx,
-      collected: FxHashSet::default(),
-      queue: vec![],
-    }
-  }
-
-  pub fn collect(&mut self, root: MonoItem) {
-    self.queue.push(root);
-    self.reachable_items();
-  }
-
-  fn reachable_items(&mut self) {
-    while let Some(to_visit) = self.queue.pop() {
-      if !self.collected.contains(&to_visit) {
-        self.collected.insert(to_visit.clone());
-        let next_items = match &to_visit {
-          MonoItem::Fn(instance) => self.visit_fn(*instance),
-          MonoItem::Static(static_def) => self.visit_static(*static_def),
-          MonoItem::GlobalAsm(_) => {
-            vec![]
-          },
-        };
-
-        self.queue
-          .extend(next_items.into_iter().filter(|item| !self.collected.contains(item)));
-      }
-    }
-  }
-
-  fn visit_fn(&mut self, instance: Instance) -> Vec<MonoItem> {
-    let _guard = debug_span!("visit_fn", function=?instance).entered();
-    if let Some(body) = instance.body() {
-      let mut collector = MonoItemsFnCollector { tcx: self.tcx, collected: FxHashSet::default(), body: &body };
-      collector.visit_body(&body);
-      collector.collected.into_iter().collect()
-    } else {
-      // println!("{instance:#?}");
-      vec![]
-    }
-  }
-
-  /// Visit a static object and collect drop / initialization functions.
-  fn visit_static(&mut self, def: StaticDef) -> Vec<MonoItem> {
-    let _guard = debug_span!("visit_static", ?def).entered();
-    let mut next_items = vec![];
-    
-    // Collect drop function.
-    let static_ty = def.ty();
-    let instance = Instance::resolve_drop_in_place(static_ty);
-    next_items.push(instance.into());
-    
-    // Collect initialization.
-    let alloc = def.eval_initializer().unwrap();
-    for (_, prov) in alloc.provenance.ptrs {
-        next_items.extend(collect_alloc_items(prov.0).into_iter());
-    }
-    
-    next_items
-  } 
-
-  // /// Visit global assembly and collect its item.
-  // fn visit_asm(&mut self, item: &MonoItem) {
-  //   debug!(?item, "visit_asm");
-  // }
-}
-
-struct MonoItemsFnCollector<'a, 'tcx> {
-  tcx: TyCtxt<'tcx>,
-  collected: FxHashSet<MonoItem>,
-  body: &'a Body,
-}
-
-impl<'a, 'tcx> MonoItemsFnCollector<'a, 'tcx> {
-  /// Collect the implementation of all trait methods and its supertrait methods for the given
-  /// concrete type.
-  fn collect_vtable_methods(&mut self, concrete_ty: TyStable, trait_ty: TyStable) {
-      trace!(?concrete_ty, ?trait_ty, "collect_vtable_methods");
-      let concrete_kind = concrete_ty.kind();
-      let trait_kind = trait_ty.kind();
-
-      assert!(!concrete_kind.is_trait(), "expected a concrete type, but found `{concrete_ty:?}`");
-      assert!(trait_kind.is_trait(), "expected a trait `{trait_ty:?}`");
-      if let Some(principal) = trait_kind.trait_principal() {
-          // A trait object type can have multiple trait bounds but up to one non-auto-trait
-          // bound. This non-auto-trait, named principal, is the only one that can have methods.
-          // https://doc.rust-lang.org/reference/special-types-and-traits.html#auto-traits
-          let poly_trait_ref = principal.with_self_ty(concrete_ty);
-
-          // Walk all methods of the trait, including those of its supertraits
-          let entries =
-              self.tcx.vtable_entries(rustc_internal::internal(self.tcx, &poly_trait_ref));
-          let methods = entries.iter().filter_map(|entry| match entry {
-              VtblEntry::MetadataAlign
-              | VtblEntry::MetadataDropInPlace
-              | VtblEntry::MetadataSize
-              | VtblEntry::Vacant => None,
-              VtblEntry::TraitVPtr(_) => {
-                  // all super trait items already covered, so skip them.
-                  None
-              }
-              VtblEntry::Method(instance) => {
-                  let instance = rustc_internal::stable(instance);
-                  should_codegen_locally(&instance).then_some(MonoItem::Fn(instance))
-              }
-          });
-          trace!(methods=?methods.clone().collect::<Vec<_>>(), "collect_vtable_methods");
-          self.collected.extend(methods);
-      }
-
-      // Add the destructor for the concrete type.
-      let instance = Instance::resolve_drop_in_place(concrete_ty);
-      self.collect_instance(instance, false);
-  }
-
-  /// Collect an instance depending on how it is used (invoked directly or via fn_ptr).
-  fn collect_instance(&mut self, instance: Instance, is_direct_call: bool) {
-      let should_collect = match instance.kind {
-          InstanceKind::Virtual { .. } | InstanceKind::Intrinsic => { // TODO: Outdated
-              // Instance definition has no body.
-              assert!(is_direct_call, "Expected direct call {instance:?}");
-              false
-          }
-          InstanceKind::Shim | InstanceKind::Item => true,
-      };
-      if should_collect && should_codegen_locally(&instance) {
-          trace!(?instance, "collect_instance");
-          self.collected.insert(instance.into());
-      }
-  }
-
-  /// Collect constant values represented by static variables.
-  fn collect_allocation(&mut self, alloc: &Allocation) {
-      debug!(?alloc, "collect_allocation");
-      for (_, id) in &alloc.provenance.ptrs {
-          self.collected.extend(collect_alloc_items(id.0).into_iter())
-      }
-  }
-}
-
-/// Visit every instruction in a function and collect the following:
-/// 1. Every function / method / closures that may be directly invoked.
-/// 2. Every function / method / closures that may have their address taken.
-/// 3. Every method that compose the impl of a trait for a given type when there's a conversion
-///    from the type to the trait.
-///    - I.e.: If we visit the following code:
-///      ```
-///      let var = MyType::new();
-///      let ptr : &dyn MyTrait = &var;
-///      ```
-///      We collect the entire implementation of `MyTrait` for `MyType`.
-/// 4. Every Static variable that is referenced in the function or constant used in the function.
-/// 5. Drop glue.
-/// 6. Static Initialization
-///
-/// Remark: This code has been mostly taken from `rustc_monomorphize::collector::MirNeighborCollector`.
-impl<'a, 'tcx> MirVisitor for MonoItemsFnCollector<'a, 'tcx> {
-    /// Collect the following:
-    /// - Trait implementations when casting from concrete to dyn Trait.
-    /// - Functions / Closures that have their address taken.
-    /// - Thread Local.
-    fn visit_rvalue(&mut self, rvalue: &Rvalue, location: Location) {
-        trace!(rvalue=?*rvalue, "visit_rvalue");
-
-        match *rvalue {
-            Rvalue::Cast(
-                CastKind::PointerCoercion(PointerCoercion::Unsize),
-                ref operand,
-                target,
-            ) => {
-                // Check if the conversion include casting a concrete type to a trait type.
-                // If so, collect items from the impl `Trait for Concrete {}`.
-                let target_ty = target;
-                let source_ty = operand.ty(self.body.locals()).unwrap();
-                let (src_ty, dst_ty) = extract_unsize_coercion(self.tcx, source_ty, target_ty);
-                if !src_ty.kind().is_trait() && dst_ty.kind().is_trait() {
-                    debug!(?src_ty, ?dst_ty, "collect_vtable_methods");
-                    self.collect_vtable_methods(src_ty, dst_ty);
-                }
-            }
-            Rvalue::Cast(
-                CastKind::PointerCoercion(PointerCoercion::ReifyFnPointer),
-                ref operand,
-                _,
-            ) => {
-                let fn_kind = operand.ty(self.body.locals()).unwrap().kind();
-                if let RigidTy::FnDef(fn_def, args) = fn_kind.rigid().unwrap() {
-                    let instance = Instance::resolve_for_fn_ptr(*fn_def, args).unwrap();
-                    self.collect_instance(instance, false);
-                } else {
-                    unreachable!("Expected FnDef type, but got: {:?}", fn_kind);
-                }
-            }
-            Rvalue::Cast(
-                CastKind::PointerCoercion(PointerCoercion::ClosureFnPointer(_)),
-                ref operand,
-                _,
-            ) => {
-                let source_ty = operand.ty(self.body.locals()).unwrap();
-                match source_ty.kind().rigid().unwrap() {
-                    RigidTy::Closure(def_id, args) => {
-                        let instance =
-                            Instance::resolve_closure(*def_id, args, ClosureKind::FnOnce)
-                                .expect("failed to normalize and resolve closure during codegen");
-                        self.collect_instance(instance, false);
-                    }
-                    _ => unreachable!("Unexpected type: {:?}", source_ty),
-                }
-            }
-            Rvalue::ThreadLocalRef(item) => {
-                trace!(?item, "visit_rvalue thread_local");
-                self.collected.insert(MonoItem::Static(StaticDef::try_from(item).unwrap()));
-            }
-            _ => { /* not interesting */ }
-        }
-
-        self.super_rvalue(rvalue, location);
-    }
-
-    /// Collect constants that are represented as static variables.
-    fn visit_const_operand(&mut self, constant: &ConstOperand, location: Location) {
-        debug!(?constant, ?location, literal=?constant.const_, "visit_constant");
-        let allocation = match constant.const_.kind() {
-            ConstantKind::Allocated(allocation) => allocation,
-            ConstantKind::Unevaluated(_) => {
-                unreachable!("Instance with polymorphic constant: `{constant:?}`")
-            }
-            ConstantKind::Param(_) => unreachable!("Unexpected parameter constant: {constant:?}"),
-            ConstantKind::ZeroSized => {
-                // Nothing to do here.
-                return;
-            }
-            ConstantKind::Ty(_) => {
-                // Nothing to do here.
-                return;
-            }
-        };
-        self.collect_allocation(&allocation);
-    }
-
-    /// Collect function calls.
-    fn visit_terminator(&mut self, terminator: &Terminator, location: Location) {
-        trace!(?terminator, ?location, "visit_terminator");
-
-        match terminator.kind {
-            TerminatorKind::Call { ref func, .. } => {
-                let fn_ty = func.ty(self.body.locals()).unwrap();
-                if let TyKindStable::RigidTy(RigidTy::FnDef(fn_def, args)) = fn_ty.kind() {
-                    let instance = Instance::resolve(fn_def, &args).unwrap();
-                    self.collect_instance(instance, true);
-                } else {
-                    assert!(
-                        matches!(fn_ty.kind().rigid(), Some(RigidTy::FnPtr(..))),
-                        "Unexpected type: {fn_ty:?}"
-                    );
-                }
-            }
-            TerminatorKind::Drop { ref place, .. } => {
-                let place_ty = place.ty(self.body.locals()).unwrap();
-                let instance = Instance::resolve_drop_in_place(place_ty);
-                self.collect_instance(instance, true);
-            }
-            TerminatorKind::InlineAsm { .. } => {
-                // We don't support inline assembly. This shall be replaced by an unsupported
-                // construct during codegen.
-            }
-            TerminatorKind::Abort { .. } | TerminatorKind::Assert { .. } => {
-                // We generate code for this without invoking any lang item.
-            }
-            TerminatorKind::Goto { .. }
-            | TerminatorKind::SwitchInt { .. }
-            | TerminatorKind::Resume
-            | TerminatorKind::Return
-            | TerminatorKind::Unreachable => {}
-        }
-
-        self.super_terminator(terminator, location);
-    }
-}
-
-#[derive(Debug)]
-pub struct CoercionBase<'tcx> {
-    pub src_ty: Ty<'tcx>,
-    pub dst_ty: Ty<'tcx>,
-}
-
-fn extract_unsize_coercion(tcx: TyCtxt, orig_ty: TyStable, dst_trait: TyStable) -> (TyStable, TyStable) {
-  let CoercionBase { src_ty, dst_ty } = extract_unsize_casting(
-      tcx,
-      rustc_internal::internal(tcx, orig_ty),
-      rustc_internal::internal(tcx, dst_trait),
-  );
-  (rustc_internal::stable(src_ty), rustc_internal::stable(dst_ty))
-}
-
-/// Return whether we should include the item into codegen.
-fn should_codegen_locally(instance: &Instance) -> bool {
-  !instance.is_foreign_item()
-}
-
-/// Convert a `MonoItem` into a stable `Fingerprint` which can be used as a stable hash across
-/// compilation sessions. This allow us to provide a stable deterministic order to codegen.
-fn to_fingerprint(tcx: TyCtxt, item: &MonoItem) -> Fingerprint {
-  tcx.with_stable_hashing_context(|mut hcx| {
-      let mut hasher = StableHasher::new();
-      rustc_internal::internal(tcx, item).hash_stable(&mut hcx, &mut hasher);
-      hasher.finish()
-  })
-}
-
-fn collect_alloc_items(alloc_id: AllocId) -> Vec<MonoItem> {
-  trace!(?alloc_id, "collect_alloc_items");
-  let mut items = vec![];
-  match GlobalAlloc::from(alloc_id) {
-      GlobalAlloc::Static(def) => {
-          // This differ from rustc's collector since rustc does not include static from
-          // upstream crates.
-          let instance = Instance::try_from(CrateItem::from(def)).unwrap();
-          should_codegen_locally(&instance).then(|| items.push(MonoItem::from(def)));
-      }
-      GlobalAlloc::Function(instance) => {
-          should_codegen_locally(&instance).then(|| items.push(MonoItem::from(instance)));
-      }
-      GlobalAlloc::Memory(alloc) => {
-          items.extend(
-              alloc.provenance.ptrs.iter().flat_map(|(_, prov)| collect_alloc_items(prov.0)),
-          );
-      }
-      vtable_alloc @ GlobalAlloc::VTable(..) => {
-          let vtable_id = vtable_alloc.vtable_allocation().unwrap();
-          items = collect_alloc_items(vtable_id);
-      }
-  };
-  items
-}
-
-/// Collect all (top-level) items in the crate that matches the given predicate.
-/// An item can only be a root if they are a non-generic function.
-pub fn filter_crate_items<F>(tcx: TyCtxt, predicate: F) -> Vec<Instance>
-where
-    F: Fn(TyCtxt, Instance) -> bool,
-{
-    let crate_items = stable_mir::all_local_items();
-    // Filter regular items.
-    crate_items
-        .iter()
-        .filter_map(|item| {
-            // Only collect monomorphic items.
-            // TODO: Remove the def_kind check once https://github.com/rust-lang/rust/pull/119135 has been released.
-            let def_id = rustc_internal::internal(tcx, item.def_id());
-            (matches!(tcx.def_kind(def_id), rustc_hir::def::DefKind::Ctor(..))
-                || matches!(item.kind(), ItemKind::Fn))
-            .then(|| {
-                Instance::try_from(*item)
-                    .ok()
-                    .and_then(|instance| predicate(tcx, instance).then_some(instance))
-            })
-            .flatten()
-        })
-        .collect::<Vec<_>>()
-}
-
-pub fn extract_unsize_casting<'tcx>(
-    tcx: TyCtxt<'tcx>,
-    src_ty: Ty<'tcx>,
-    dst_ty: Ty<'tcx>,
-) -> CoercionBase<'tcx> {
-    trace!(?src_ty, ?dst_ty, "extract_unsize_casting");
-    // Iterate over the pointer structure to find the builtin pointer that will store the metadata.
-    let coerce_info = CoerceUnsizedIterator::new(
-        tcx,
-        rustc_internal::stable(src_ty),
-        rustc_internal::stable(dst_ty),
-    )
-    .last()
-    .unwrap();
-    // Extract the pointee type that is being coerced.
-    let src_pointee_ty = extract_pointee(tcx, coerce_info.src_ty).expect(&format!(
-        "Expected source to be a pointer. Found {:?} instead",
-        coerce_info.src_ty
-    ));
-    let dst_pointee_ty = extract_pointee(tcx, coerce_info.dst_ty).expect(&format!(
-        "Expected destination to be a pointer. Found {:?} instead",
-        coerce_info.dst_ty
-    ));
-    // Find the tail of the coercion that determines the type of metadata to be stored.
-    let (src_base_ty, dst_base_ty) = tcx.struct_lockstep_tails_erasing_lifetimes(
-        src_pointee_ty,
-        dst_pointee_ty,
-        ParamEnv::reveal_all(),
-    );
-    trace!(?src_base_ty, ?dst_base_ty, "extract_unsize_casting result");
-    assert!(
-        dst_base_ty.is_trait() || dst_base_ty.is_slice(),
-        "Expected trait or slice as destination of unsized cast, but found {dst_base_ty:?}"
-    );
-    CoercionBase { src_ty: src_base_ty, dst_ty: dst_base_ty }
-}
-
-/// This structure represents the base of a coercion.
-///
-/// This base is used to determine the information that will be stored in the metadata.
-/// E.g.: In order to convert an `Rc<String>` into an `Rc<dyn Debug>`, we need to generate a
-/// vtable that represents the `impl Debug for String`. So this type will carry the `String` type
-/// as the `src_ty` and the `dyn Debug` trait as `dst_ty`.
-
-/// Iterates over the coercion path of a structure that implements `CoerceUnsized<T>` trait.
-/// The `CoerceUnsized<T>` trait indicates that this is a pointer or a wrapper for one, where
-/// unsizing can be performed on the pointee. More details:
-/// <https://doc.rust-lang.org/std/ops/trait.CoerceUnsized.html>
-///
-/// Given an unsized coercion between `impl CoerceUnsized<T>` to `impl CoerceUnsized<U>` where
-/// `T` is sized and `U` is unsized, this iterator will walk over the fields that lead to a
-/// pointer to `T`, which shall be converted from a thin pointer to a fat pointer.
-///
-/// Each iteration will also include an optional name of the field that differs from the current
-/// pair of types.
-///
-/// The first element of the iteration will always be the starting types.
-/// The last element of the iteration will always be pointers to `T` and `U`.
-/// After unsized element has been found, the iterator will return `None`.
-pub struct CoerceUnsizedIterator<'tcx> {
-    tcx: TyCtxt<'tcx>,
-    src_ty: Option<TyStable>,
-    dst_ty: Option<TyStable>,
-}
-
-/// Represent the information about a coercion.
-#[derive(Debug, Clone, PartialEq)]
-pub struct CoerceUnsizedInfo {
-    /// The name of the field from the current types that differs between each other.
-    pub field: Option<Symbol>,
-    /// The type being coerced.
-    pub src_ty: TyStable,
-    /// The type that is the result of the coercion.
-    pub dst_ty: TyStable,
-}
-
-impl<'tcx> CoerceUnsizedIterator<'tcx> {
-    pub fn new(
-        tcx: TyCtxt<'tcx>,
-        src_ty: TyStable,
-        dst_ty: TyStable,
-    ) -> CoerceUnsizedIterator<'tcx> {
-        CoerceUnsizedIterator { tcx, src_ty: Some(src_ty), dst_ty: Some(dst_ty) }
-    }
-}
-
-/// Iterate over the coercion path. At each iteration, it returns the name of the field that must
-/// be coerced, as well as the current source and the destination.
-/// E.g.: The first iteration of casting `NonNull<String>` -> `NonNull<&dyn Debug>` will return
-/// ```rust,ignore
-/// CoerceUnsizedInfo {
-///    field: Some("ptr"),
-///    src_ty, // NonNull<String>
-///    dst_ty  // NonNull<&dyn Debug>
-/// }
-/// ```
-/// while the last iteration will return:
-/// ```rust,ignore
-/// CoerceUnsizedInfo {
-///   field: None,
-///   src_ty: Ty, // *const String
-///   dst_ty: Ty, // *const &dyn Debug
-/// }
-/// ```
-impl<'tcx> Iterator for CoerceUnsizedIterator<'tcx> {
-    type Item = CoerceUnsizedInfo;
-
-    fn next(&mut self) -> Option<Self::Item> {
-        if self.src_ty.is_none() {
-            assert_eq!(self.dst_ty, None, "Expected no dst type.");
-            return None;
-        }
-
-        // Extract the pointee types from pointers (including smart pointers) that form the base of
-        // the conversion.
-        let src_ty = self.src_ty.take().unwrap();
-        let dst_ty = self.dst_ty.take().unwrap();
-        let field = match (src_ty.kind(), dst_ty.kind()) {
-            (
-                TyKindStable::RigidTy(RigidTy::Adt(src_def, ref src_args)),
-                TyKindStable::RigidTy(RigidTy::Adt(dst_def, ref dst_args)),
-            ) => {
-                // Handle smart pointers by using CustomCoerceUnsized to find the field being
-                // coerced.
-                assert_eq!(src_def, dst_def);
-                let src_fields = &src_def.variants_iter().next().unwrap().fields();
-                let dst_fields = &dst_def.variants_iter().next().unwrap().fields();
-                assert_eq!(src_fields.len(), dst_fields.len());
-
-                let CustomCoerceUnsized::Struct(coerce_index) = custom_coerce_unsize_info(
-                    self.tcx,
-                    rustc_internal::internal(self.tcx, src_ty),
-                    rustc_internal::internal(self.tcx, dst_ty),
-                );
-                let coerce_index = coerce_index.as_usize();
-                assert!(coerce_index < src_fields.len());
-
-                self.src_ty = Some(src_fields[coerce_index].ty_with_args(&src_args));
-                self.dst_ty = Some(dst_fields[coerce_index].ty_with_args(&dst_args));
-                Some(src_fields[coerce_index].name.clone())
-            }
-            _ => {
-                // Base case is always a pointer (Box, raw_pointer or reference).
-                assert!(
-                    extract_pointee(self.tcx, src_ty).is_some(),
-                    "Expected a pointer, but found {src_ty:?}"
-                );
-                None
-            }
-        };
-        Some(CoerceUnsizedInfo { field, src_ty, dst_ty })
-    }
-}
-
-/// Get information about an unsized coercion.
-/// This code was extracted from `rustc_monomorphize` crate.
-/// <https://github.com/rust-lang/rust/blob/4891d57f7aab37b5d6a84f2901c0bb8903111d53/compiler/rustc_monomorphize/src/lib.rs#L25-L46>
-fn custom_coerce_unsize_info<'tcx>(
-    tcx: TyCtxt<'tcx>,
-    source_ty: Ty<'tcx>,
-    target_ty: Ty<'tcx>,
-) -> CustomCoerceUnsized {
-    let def_id = tcx.require_lang_item(LangItem::CoerceUnsized, None);
-
-    let trait_ref = TraitRef::new(tcx, def_id, tcx.mk_args_trait(source_ty, [target_ty.into()]));
-
-    match tcx.codegen_select_candidate((ParamEnv::reveal_all(), trait_ref)) {
-        Ok(ImplSource::UserDefined(ImplSourceUserDefinedData { impl_def_id, .. })) => {
-            tcx.coerce_unsized_info(impl_def_id).unwrap().custom_kind.unwrap()
-        }
-        impl_source => {
-            unreachable!("invalid `CoerceUnsized` impl_source: {:?}", impl_source);
-        }
-    }
-}
-
-/// Extract pointee type from builtin pointer types.
-fn extract_pointee(tcx: TyCtxt<'_>, typ: TyStable) -> Option<Ty<'_>> {
-    rustc_internal::internal(tcx, typ).builtin_deref(true)
-}
diff --git a/src/kani_lib/mod.rs b/src/kani_lib/mod.rs
deleted file mode 100644
index e22c8f1..0000000
--- a/src/kani_lib/mod.rs
+++ /dev/null
@@ -1,7 +0,0 @@
-// This module wraps code derived from the kani project
-//
-// https://github.com/model-checking/kani
-//
-// Code used under license; see license file in the module directory.
-
-pub mod kani_collector;
diff --git a/src/lib.rs b/src/lib.rs
index b6696bc..f17c342 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,6 +1,5 @@
 #![feature(rustc_private)]
 pub mod driver;
 pub mod printer;
-pub mod kani_lib;
 pub use driver::stable_mir_driver;
 pub use printer::*;
diff --git a/src/main.rs b/src/main.rs
index 1fb986d..d1c9700 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,7 +2,6 @@
 use std::env;
 pub mod driver;
 pub mod printer;
-pub mod kani_lib;
 use driver::stable_mir_driver;
 use printer::emit_smir;
 
diff --git a/src/printer.rs b/src/printer.rs
index 45a72c8..ea506ec 100644
--- a/src/printer.rs
+++ b/src/printer.rs
@@ -17,7 +17,6 @@ use rustc_span::{def_id::{DefId, LOCAL_CRATE}, symbol}; // DUMMY_SP, symbol::sym
 use rustc_smir::rustc_internal;
 use stable_mir::{CrateItem,CrateDef,ItemKind,mir::{Body,LocalDecl,Terminator,TerminatorKind,Rvalue,visit::MirVisitor},ty::{Allocation,ForeignItemKind},mir::mono::{MonoItem,Instance,InstanceKind},visited_tys,visited_alloc_ids}; // Symbol
 use serde::{Serialize, Serializer};
-use crate::kani_lib::kani_collector::{filter_crate_items, collect_all_mono_items};
 
 // Structs for serializing extra details about mono items
 // ======================================================
@@ -517,19 +516,6 @@ fn collect_unevaluated_constant_items(tcx: TyCtxt<'_>, items: HashMap<String,Ite
 // Core item collection logic
 // ==========================
 
-fn kani_collect(tcx: TyCtxt<'_>, opts: String) -> Vec<MonoItem> {
-  let collect_all = opts == "ALL";
-  let main_instance = stable_mir::entry_fn().map(|main_fn| Instance::try_from(main_fn).ok()).flatten();
-  let initial_mono_items: Vec<MonoItem> = filter_crate_items(tcx, |_, instance| {
-    let def_id = rustc_internal::internal(tcx, instance.def.def_id());
-    Some(instance) == main_instance || (collect_all && tcx.is_reachable_non_generic(def_id))
-  })
-    .into_iter()
-    .map(MonoItem::Fn)
-    .collect();
-  collect_all_mono_items(tcx, &initial_mono_items)
-}
-
 fn mono_collect(tcx: TyCtxt<'_>) -> Vec<MonoItem> {
   let units = tcx.collect_and_partition_mono_items(()).1;
   units.iter().flat_map(|unit| {
@@ -539,11 +525,7 @@ fn mono_collect(tcx: TyCtxt<'_>) -> Vec<MonoItem> {
 
 fn collect_items(tcx: TyCtxt<'_>) -> HashMap<String, Item> {
   // get initial set of mono_items
-  let items = if let Ok(opts) = std::env::var("USE_KANI_PORT") {
-    kani_collect(tcx, opts)
-  } else {
-    mono_collect(tcx)
-  };
+  let items = mono_collect(tcx);
   items.iter().map(|item| {
       let name = mono_item_name(tcx, item);
       ( name.clone(), mk_item(tcx, item.clone(), name) )

From 8dabbed438e402e71d34f2d5177bf61c5c20de43 Mon Sep 17 00:00:00 2001
From: Stephen Skeirik <stephen.skeirik@runtimeverification.com>
Date: Fri, 1 Nov 2024 14:50:19 -0400
Subject: [PATCH 02/15] do not depend on forked rust

---
 Makefile       |   4 +-
 src/printer.rs | 192 +++++++++++++++++++++++++++++++++++++++++++------
 2 files changed, 174 insertions(+), 22 deletions(-)

diff --git a/Makefile b/Makefile
index 53903ca..b687de3 100644
--- a/Makefile
+++ b/Makefile
@@ -17,8 +17,8 @@ RUST_DEP_DIR=${RUST_BUILD_DIR}/stage1-rustc/${RUST_ARCH}/release/deps
 TARGET_DEP_DIR=${CURDIR}/target/${TARGET}/deps
 TEMP_DIR=${RUST_DIR}/temp
 RUST_REPO=https://github.com/runtimeverification/rust
-RUST_BRANCH=smir_serde_derive_intern_scripts
-TOOLCHAIN_NAME=smir_serde_derive_intern_scripts
+RUST_BRANCH=master
+TOOLCHAIN_NAME=smir_pretty
 RELEASE_FLAG=
 ifeq (${TARGET}, release)
 RELEASE_FLAG=--release
diff --git a/src/printer.rs b/src/printer.rs
index ea506ec..808780f 100644
--- a/src/printer.rs
+++ b/src/printer.rs
@@ -15,7 +15,7 @@ use rustc_middle::ty::{TyCtxt, Ty, TyKind, EarlyBinder, FnSig, GenericArgs, Type
 use rustc_session::config::{OutFileName, OutputType};
 use rustc_span::{def_id::{DefId, LOCAL_CRATE}, symbol}; // DUMMY_SP, symbol::sym::test;
 use rustc_smir::rustc_internal;
-use stable_mir::{CrateItem,CrateDef,ItemKind,mir::{Body,LocalDecl,Terminator,TerminatorKind,Rvalue,visit::MirVisitor},ty::{Allocation,ForeignItemKind},mir::mono::{MonoItem,Instance,InstanceKind},visited_tys,visited_alloc_ids}; // Symbol
+use stable_mir::{CrateItem,CrateDef,ItemKind,mir::{Body,LocalDecl,Terminator,TerminatorKind,Rvalue,visit::MirVisitor},ty::{Allocation,ForeignItemKind},mir::mono::{MonoItem,Instance,InstanceKind}}; // Symbol
 use serde::{Serialize, Serializer};
 
 // Structs for serializing extra details about mono items
@@ -194,6 +194,12 @@ fn fn_inst_for_ty(ty: stable_mir::ty::Ty, direct_call: bool) -> Option<Instance>
   }).flatten()
 }
 
+fn def_id_to_inst(tcx: TyCtxt<'_>, id: stable_mir::DefId) -> Instance {
+  let internal_id = rustc_internal::internal(tcx,id);
+  let internal_inst = rustc_middle::ty::Instance::mono(tcx, internal_id);
+  rustc_internal::stable(internal_inst)
+}
+
 fn take_any<K: Clone + std::hash::Hash + std::cmp::Eq, V>(map: &mut HashMap<K,V>) -> Option<(K,V)> {
   let key = map.keys().next()?.clone();
   map.remove(&key).map(|val| (key,val))
@@ -353,14 +359,28 @@ impl Serialize for ItemSource {
   }
 }
 
+#[derive(Serialize)]
+enum AllocInfo {
+    Function(stable_mir::mir::mono::Instance),
+    VTable(stable_mir::ty::Ty, Option<stable_mir::ty::Binder<stable_mir::ty::ExistentialTraitRef>>),
+    Static(stable_mir::mir::mono::StaticDef),
+    Memory(stable_mir::ty::TyKind, stable_mir::ty::Allocation),
+}
 type LinkMap<'tcx> = HashMap<LinkMapKey<'tcx>, (ItemSource, FnSymType)>;
+type AllocMap = HashMap<stable_mir::mir::alloc::AllocId, AllocInfo>;
+type TyMap = HashMap<u64, (stable_mir::ty::TyKind, Option<stable_mir::abi::LayoutShape>)>;
 
-struct LinkNameCollector<'tcx, 'local> {
+struct InternedValueCollector<'tcx, 'local> {
   tcx: TyCtxt<'tcx>,
-  link_map: &'local mut LinkMap<'tcx>,
+  sym: String,
   locals: &'local [LocalDecl],
+  link_map: &'local mut LinkMap<'tcx>,
+  visited_allocs: &'local mut AllocMap,
+  visited_tys: &'local mut TyMap,
 }
 
+type InternedValues<'tcx> = (LinkMap<'tcx>, AllocMap, TyMap);
+
 fn update_link_map<'tcx>(link_map: &mut LinkMap<'tcx>, fn_sym: Option<FnSymInfo<'tcx>>, source: ItemSource) {
   if fn_sym.is_none() { return }
   let (ty, kind, name) = fn_sym.unwrap();
@@ -382,7 +402,100 @@ fn update_link_map<'tcx>(link_map: &mut LinkMap<'tcx>, fn_sym: Option<FnSymInfo<
   }
 }
 
-impl MirVisitor for LinkNameCollector<'_, '_> {
+fn get_prov_type(maybe_kind: Option<stable_mir::ty::TyKind>) -> Option<stable_mir::ty::TyKind> {
+  use stable_mir::ty::RigidTy;
+  // check for pointers
+  let kind = if let Some(kind) = maybe_kind { kind } else { return None };
+  if let Some(ty) = kind.builtin_deref(true) {
+    return ty.ty.kind().into();
+  }
+  match kind.rigid().expect("Non-rigid-ty allocation found!") {
+    RigidTy::Array(ty, _) | RigidTy::Slice(ty) => ty.kind().into(),
+    RigidTy::FnPtr(_) => None,
+    _ => todo!(),
+  }
+}
+
+fn collect_alloc(val_collector: &mut InternedValueCollector, kind: Option<stable_mir::ty::TyKind>, val: stable_mir::mir::alloc::AllocId) {
+    use stable_mir::mir::alloc::GlobalAlloc;
+    let entry = val_collector.visited_allocs.entry(val);
+    if matches!(entry, std::collections::hash_map::Entry::Occupied(_)) { return; }
+    let global_alloc = GlobalAlloc::from(val);
+    match global_alloc {
+        GlobalAlloc::Memory(ref alloc) => {
+            let pointed_kind = get_prov_type(kind);
+            println!("DEBUG: called collect_alloc: {:?}:{:?}:{:?}", val, pointed_kind, global_alloc);
+            entry.or_insert(AllocInfo::Memory(pointed_kind.clone().unwrap(), alloc.clone()));
+            alloc.provenance.ptrs.iter().for_each(|(_, prov)| {
+                collect_alloc(val_collector, pointed_kind.clone(), prov.0);
+            });
+        }
+        GlobalAlloc::Static(def) => {
+            assert!(kind.clone().unwrap().builtin_deref(true).is_some(), "Allocated pointer is not a built-in pointer type: {:?}", kind);
+            entry.or_insert(AllocInfo::Static(def));
+        },
+        GlobalAlloc::VTable(ty, traitref) => {
+            assert!(kind.clone().unwrap().builtin_deref(true).is_some(), "Allocated pointer is not a built-in pointer type: {:?}", kind);
+            entry.or_insert(AllocInfo::VTable(ty, traitref));
+        },
+        GlobalAlloc::Function(inst) => {
+            assert!(kind.unwrap().is_fn_ptr());
+            entry.or_insert(AllocInfo::Function(inst));
+        },
+    };
+}
+
+fn collect_vec_tys(collector: &mut InternedValueCollector, tys: Vec<stable_mir::ty::Ty>) {
+    tys.into_iter().for_each(|ty| collect_ty(collector, ty));
+}
+
+fn collect_arg_tys(collector: &mut InternedValueCollector, args: &stable_mir::ty::GenericArgs) {
+    use stable_mir::ty::{GenericArgKind::*, TyConst, TyConstKind::*};
+    for arg in args.0.iter() {
+        match arg {
+            Type(ty) => collect_ty(collector, *ty),
+            Const(ty_const) => match ty_const.kind() {
+                Value(ty, _) | ZSTValue(ty) => collect_ty(collector, *ty),
+                _ => {}
+            },
+            _ => {}
+        }
+     }
+}
+
+fn collect_ty(val_collector: &mut InternedValueCollector, val: stable_mir::ty::Ty) {
+    use stable_mir::ty::{GenericArgKind::*, RigidTy::*, TyConst, TyConstKind::*, TyKind::RigidTy};
+    if val_collector.visited_tys.insert(hash(val), (val.kind(), val.layout().map(|l| l.shape()).ok())).is_some() {
+        match val.kind() {
+            RigidTy(Array(ty, _) | Pat(ty, _) | Slice(ty) | RawPtr(ty, _) | Ref(_, ty, _)) => {
+                collect_ty(val_collector, ty)
+            }
+            RigidTy(Tuple(tys)) => collect_vec_tys(val_collector, tys),
+            RigidTy(Adt(def, ref args)) => {
+                for variant in def.variants_iter() {
+                    for field in variant.fields() {
+                        collect_ty(val_collector, field.ty());
+                    }
+                }
+                collect_arg_tys(val_collector, args);
+            }
+            // FIXME: Would be good to grab the coroutine signature
+            RigidTy(Coroutine(_, ref args, _) | CoroutineWitness(_, ref args)) => collect_arg_tys(val_collector, args),
+            ref kind @ RigidTy(FnDef(_, ref args) | Closure(_, ref args)) => {
+                collect_vec_tys(val_collector, kind.fn_sig().unwrap().value.inputs_and_output);
+                collect_arg_tys(val_collector, args);
+            }
+            RigidTy(Foreign(def)) => match def.kind() {
+                ForeignItemKind::Fn(def) => collect_vec_tys(val_collector, def.fn_sig().value.inputs_and_output),
+                ForeignItemKind::Type(ty) => collect_ty(val_collector, ty),
+                ForeignItemKind::Static(def) => collect_ty(val_collector, def.ty()),
+            }
+            _ => {}
+        }
+    }
+}
+
+impl MirVisitor for InternedValueCollector<'_, '_> {
   fn visit_terminator(&mut self, term: &Terminator, loc: stable_mir::mir::visit::Location) {
     use TerminatorKind::*;
     use stable_mir::mir::{Operand::Constant, ConstOperand};
@@ -415,14 +528,37 @@ impl MirVisitor for LinkNameCollector<'_, '_> {
     };
     self.super_rvalue(rval, loc);
   }
+
+  fn visit_mir_const(&mut self, constant: &stable_mir::ty::MirConst, loc: stable_mir::mir::visit::Location) {
+    use stable_mir::ty::{ConstantKind, TyConst, TyConstKind};
+    match constant.kind() {
+      ConstantKind::Allocated(alloc) => {
+        println!("visited_mir_const::Allocated({:?}) as {:?}", alloc, constant.ty().kind());
+        alloc.provenance.ptrs.iter().for_each(|(_offset, prov)| collect_alloc(self, Some(constant.ty().kind()), prov.0));
+      },
+      ConstantKind::Ty(ty_const) => {
+        if let TyConstKind::Value(..) = ty_const.kind() {
+          panic!("TyConstKind::Value");
+        }
+      },
+      ConstantKind::Unevaluated(_) | ConstantKind::Param(_) | ConstantKind::ZeroSized => {}
+    }
+    self.super_mir_const(constant, loc);
+  }
+
+  fn visit_ty(&mut self, ty: &stable_mir::ty::Ty, _location: stable_mir::mir::visit::Location) {
+     collect_ty(self, *ty);
+  }
 }
 
-fn collect_fn_calls<'tcx,'local>(tcx: TyCtxt<'tcx>, items: Vec<&'local MonoItem>) -> Vec<(LinkMapKey<'tcx>, (ItemSource, FnSymType))> {
-  let mut hash_map = HashMap::new();
+fn collect_interned_values<'tcx,'local>(tcx: TyCtxt<'tcx>, items: Vec<&'local MonoItem>) -> InternedValues<'tcx> {
+  let mut calls_map = HashMap::new();
+  let mut visited_tys = HashMap::new();
+  let mut visited_allocs = HashMap::new();
   if link_items_enabled() {
     for item in items.iter() {
       if let MonoItem::Fn ( inst ) = item {
-         update_link_map(&mut hash_map, fn_inst_sym(tcx, None, Some(inst)), ItemSource(ITEM))
+         update_link_map(&mut calls_map, fn_inst_sym(tcx, None, Some(inst)), ItemSource(ITEM))
       }
     }
   }
@@ -430,22 +566,36 @@ fn collect_fn_calls<'tcx,'local>(tcx: TyCtxt<'tcx>, items: Vec<&'local MonoItem>
     match &item {
       MonoItem::Fn( inst ) => {
          for body in get_bodies(tcx, inst).into_iter() {
-           LinkNameCollector {
+           InternedValueCollector {
              tcx,
-             link_map: &mut hash_map,
-             locals: body.locals()
+             sym: inst.mangled_name(),
+             locals: body.locals(),
+             link_map: &mut calls_map,
+             visited_tys: &mut visited_tys,
+             visited_allocs: &mut visited_allocs,
            }.visit_body(&body)
          }
       }
-      MonoItem::Static { .. } => {}
-      MonoItem::GlobalAsm { .. } => {}
+      MonoItem::Static(def) => {
+         let inst = def_id_to_inst(tcx, def.def_id());
+         for body in get_bodies(tcx, &inst).into_iter() {
+           InternedValueCollector {
+             tcx,
+             sym: inst.mangled_name(),
+             locals: &[],
+             link_map: &mut calls_map,
+             visited_tys: &mut visited_tys,
+             visited_allocs: &mut visited_allocs,
+           }.visit_body(&body)
+         }
+      }
+      MonoItem::GlobalAsm(_) => {}
     }
   }
-  let calls: Vec<_> = hash_map.into_iter().collect();
-  // calls.sort_by(|fst,snd| rustc_internal::internal(tcx, fst.0.def_id()).cmp(rustc_internal::internal(tcx, snd.0.def_id())));
-  calls
+  (calls_map, visited_allocs, visited_tys)
 }
 
+
 // Collection Transitive Closure
 // =============================
 
@@ -539,21 +689,23 @@ fn emit_smir_internal(tcx: TyCtxt<'_>, writer: &mut dyn io::Write) {
   let local_crate = stable_mir::local_crate();
   let items = collect_items(tcx);
   let (unevaluated_consts, items) = collect_unevaluated_constant_items(tcx, items);
-  let called_functions = collect_fn_calls(tcx, items.iter().map(|i| &i.mono_item).collect::<Vec<_>>());
+  let (calls_map, visited_allocs, visited_tys) = collect_interned_values(tcx, items.iter().map(|i| &i.mono_item).collect::<Vec<_>>());
+  let called_functions = calls_map.iter().map(|(k,(_,name))| (k,name)).collect::<Vec<_>>();
   let crate_id = tcx.stable_crate_id(LOCAL_CRATE).as_u64();
   let json_items = serde_json::to_value(&items).expect("serde_json mono items to value failed");
   write!(writer, "{{\"name\": {}, \"crate_id\": {}, \"allocs\": {},  \"functions\": {},  \"uneval_consts\": {}, \"items\": {}",
     serde_json::to_string(&local_crate.name).expect("serde_json string to json failed"),
     serde_json::to_string(&crate_id).expect("serde_json number to json failed"),
-    serde_json::to_string(&visited_alloc_ids()).expect("serde_json global allocs to json failed"),
-    serde_json::to_string(&called_functions.iter().map(|(k,(_,name))| (k,name)).collect::<Vec<_>>()).expect("serde_json functions to json failed"),
+    serde_json::to_string(&visited_allocs).expect("serde_json global allocs to json failed"),
+    serde_json::to_string(&called_functions).expect("serde_json functions to json failed"),
     serde_json::to_string(&unevaluated_consts).expect("serde_json unevaluated consts to json failed"),
     serde_json::to_string(&json_items).expect("serde_json mono items to json failed"),
   ).expect("Failed to write JSON to file");
   if debug_enabled() {
+    let fn_sources = calls_map.iter().map(|(k,(source,_))| (k,source)).collect::<Vec<_>>();
     write!(writer, ",\"fn_sources\": {}, \"types\": {}, \"foreign_modules\": {}}}",
-      serde_json::to_string(&called_functions.iter().map(|(k,(source,_))| (k,source)).collect::<Vec<_>>()).expect("serde_json functions failed"),
-      serde_json::to_string(&visited_tys()).expect("serde_json tys failed"),
+      serde_json::to_string(&fn_sources).expect("serde_json functions failed"),
+      serde_json::to_string(&visited_tys).expect("serde_json tys failed"),
       serde_json::to_string(&get_foreign_module_details()).expect("foreign_module serialization failed"),
     ).expect("Failed to write JSON to file");
   } else {

From ea1b659290a44d7193d7350a06923f981e15f0d2 Mon Sep 17 00:00:00 2001
From: Stephen Skeirik <stephen.skeirik@runtimeverification.com>
Date: Fri, 1 Nov 2024 16:41:57 -0400
Subject: [PATCH 03/15] add minor improvements

---
 src/printer.rs | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/src/printer.rs b/src/printer.rs
index 808780f..b7a52fd 100644
--- a/src/printer.rs
+++ b/src/printer.rs
@@ -21,7 +21,7 @@ use serde::{Serialize, Serializer};
 // Structs for serializing extra details about mono items
 // ======================================================
 
-#[derive(Serialize)]
+#[derive(Serialize, Clone)]
 struct BodyDetails {
     pp: String,
 }
@@ -32,7 +32,7 @@ fn get_body_details(body: &Body) -> BodyDetails {
   BodyDetails { pp: str::from_utf8(&v).unwrap().into() }
 }
 
-#[derive(Serialize)]
+#[derive(Serialize, Clone)]
 struct GenericData(Vec<(String,String)>); // Alternatively, GenericData<'a>(Vec<(&'a Generics,GenericPredicates<'a>)>);
 
 fn generic_data(tcx: TyCtxt<'_>, id: DefId) -> GenericData {
@@ -49,7 +49,7 @@ fn generic_data(tcx: TyCtxt<'_>, id: DefId) -> GenericData {
      return GenericData(v);
 }
 
-#[derive(Serialize)]
+#[derive(Serialize, Clone)]
 struct ItemDetails {
     // these fields only defined for fn items
     fn_instance_kind: Option<InstanceKind>,
@@ -215,7 +215,7 @@ fn hash<T: std::hash::Hash>(obj: T) -> u64 {
 // Structs for serializing critical details about mono items
 // =========================================================
 
-#[derive(Serialize)]
+#[derive(Serialize, Clone)]
 enum MonoItemKind {
     MonoItemFn {
       name: String,
@@ -231,7 +231,7 @@ enum MonoItemKind {
       asm: String,
     },
 }
-#[derive(Serialize)]
+#[derive(Serialize, Clone)]
 struct Item {
     #[serde(skip)]
     mono_item: MonoItem,
@@ -360,7 +360,7 @@ impl Serialize for ItemSource {
 }
 
 #[derive(Serialize)]
-enum AllocInfo {
+pub enum AllocInfo {
     Function(stable_mir::mir::mono::Instance),
     VTable(stable_mir::ty::Ty, Option<stable_mir::ty::Binder<stable_mir::ty::ExistentialTraitRef>>),
     Static(stable_mir::mir::mono::StaticDef),
@@ -424,7 +424,7 @@ fn collect_alloc(val_collector: &mut InternedValueCollector, kind: Option<stable
     match global_alloc {
         GlobalAlloc::Memory(ref alloc) => {
             let pointed_kind = get_prov_type(kind);
-            println!("DEBUG: called collect_alloc: {:?}:{:?}:{:?}", val, pointed_kind, global_alloc);
+            if debug_enabled() { println!("DEBUG: called collect_alloc: {:?}:{:?}:{:?}", val, pointed_kind, global_alloc); }
             entry.or_insert(AllocInfo::Memory(pointed_kind.clone().unwrap(), alloc.clone()));
             alloc.provenance.ptrs.iter().for_each(|(_, prov)| {
                 collect_alloc(val_collector, pointed_kind.clone(), prov.0);
@@ -533,7 +533,7 @@ impl MirVisitor for InternedValueCollector<'_, '_> {
     use stable_mir::ty::{ConstantKind, TyConst, TyConstKind};
     match constant.kind() {
       ConstantKind::Allocated(alloc) => {
-        println!("visited_mir_const::Allocated({:?}) as {:?}", alloc, constant.ty().kind());
+        if debug_enabled() { println!("visited_mir_const::Allocated({:?}) as {:?}", alloc, constant.ty().kind()); }
         alloc.provenance.ptrs.iter().for_each(|(_offset, prov)| collect_alloc(self, Some(constant.ty().kind()), prov.0));
       },
       ConstantKind::Ty(ty_const) => {

From e75f804cf5a64ca1368d15e18fde94c9e16d9f4f Mon Sep 17 00:00:00 2001
From: Stephen Skeirik <stephen.skeirik@runtimeverification.com>
Date: Fri, 1 Nov 2024 16:43:18 -0400
Subject: [PATCH 04/15] add extra static item hack

---
 src/printer.rs | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/printer.rs b/src/printer.rs
index b7a52fd..bd32929 100644
--- a/src/printer.rs
+++ b/src/printer.rs
@@ -688,8 +688,22 @@ fn collect_items(tcx: TyCtxt<'_>) -> HashMap<String, Item> {
 fn emit_smir_internal(tcx: TyCtxt<'_>, writer: &mut dyn io::Write) {
   let local_crate = stable_mir::local_crate();
   let items = collect_items(tcx);
-  let (unevaluated_consts, items) = collect_unevaluated_constant_items(tcx, items);
+  let items_clone = items.clone();
+  let (unevaluated_consts, mut items) = collect_unevaluated_constant_items(tcx, items);
   let (calls_map, visited_allocs, visited_tys) = collect_interned_values(tcx, items.iter().map(|i| &i.mono_item).collect::<Vec<_>>());
+
+  // FIXME: We dump extra static items here --- this should be handled better
+  for (_, alloc) in visited_allocs.iter() {
+      if let AllocInfo::Static(def) = alloc {
+          let mono_item = stable_mir::mir::mono::MonoItem::Fn(stable_mir::mir::mono::Instance::from(*def));
+          let item_name = &mono_item_name(tcx, &mono_item);
+          if !items_clone.contains_key(item_name) {
+            println!("Items missing static with id {:?} and name {:?}", def, item_name);
+            items.push(mk_item(tcx, mono_item, item_name.clone()));
+          }
+      }
+  }
+
   let called_functions = calls_map.iter().map(|(k,(_,name))| (k,name)).collect::<Vec<_>>();
   let crate_id = tcx.stable_crate_id(LOCAL_CRATE).as_u64();
   let json_items = serde_json::to_value(&items).expect("serde_json mono items to value failed");

From 60b9c4e82cf37da1532c9388ebbbb8cdd79be28e Mon Sep 17 00:00:00 2001
From: Jost Berthold <jost.berthold@gmail.com>
Date: Mon, 13 Jan 2025 15:41:56 +1100
Subject: [PATCH 05/15] add default: build to Makefile

---
 Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Makefile b/Makefile
index 4e16495..78786e8 100644
--- a/Makefile
+++ b/Makefile
@@ -24,6 +24,8 @@ ifeq (${TARGET}, release)
 RELEASE_FLAG=--release
 endif
 
+default: build
+
 build_all: rust_build rust_set_toolchain build
 
 setup: rust_clone

From 081d77145302616e8873a192cb47a2c24583650a Mon Sep 17 00:00:00 2001
From: Jost Berthold <jost.berthold@gmail.com>
Date: Mon, 13 Jan 2025 17:10:12 +1100
Subject: [PATCH 06/15] WIP comment out 2nd arg to Memory constructor (makes
 json format different)

---
 src/printer.rs | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/printer.rs b/src/printer.rs
index bd32929..2047136 100644
--- a/src/printer.rs
+++ b/src/printer.rs
@@ -364,7 +364,7 @@ pub enum AllocInfo {
     Function(stable_mir::mir::mono::Instance),
     VTable(stable_mir::ty::Ty, Option<stable_mir::ty::Binder<stable_mir::ty::ExistentialTraitRef>>),
     Static(stable_mir::mir::mono::StaticDef),
-    Memory(stable_mir::ty::TyKind, stable_mir::ty::Allocation),
+    Memory(/* stable_mir::ty::TyKind, */ stable_mir::ty::Allocation),
 }
 type LinkMap<'tcx> = HashMap<LinkMapKey<'tcx>, (ItemSource, FnSymType)>;
 type AllocMap = HashMap<stable_mir::mir::alloc::AllocId, AllocInfo>;
@@ -425,7 +425,7 @@ fn collect_alloc(val_collector: &mut InternedValueCollector, kind: Option<stable
         GlobalAlloc::Memory(ref alloc) => {
             let pointed_kind = get_prov_type(kind);
             if debug_enabled() { println!("DEBUG: called collect_alloc: {:?}:{:?}:{:?}", val, pointed_kind, global_alloc); }
-            entry.or_insert(AllocInfo::Memory(pointed_kind.clone().unwrap(), alloc.clone()));
+            entry.or_insert(AllocInfo::Memory(alloc.clone())); // pointed_kind.clone().unwrap(), alloc.clone()));
             alloc.provenance.ptrs.iter().for_each(|(_, prov)| {
                 collect_alloc(val_collector, pointed_kind.clone(), prov.0);
             });
@@ -705,12 +705,13 @@ fn emit_smir_internal(tcx: TyCtxt<'_>, writer: &mut dyn io::Write) {
   }
 
   let called_functions = calls_map.iter().map(|(k,(_,name))| (k,name)).collect::<Vec<_>>();
+  let allocs = visited_allocs.iter().collect::<Vec<_>>();
   let crate_id = tcx.stable_crate_id(LOCAL_CRATE).as_u64();
   let json_items = serde_json::to_value(&items).expect("serde_json mono items to value failed");
   write!(writer, "{{\"name\": {}, \"crate_id\": {}, \"allocs\": {},  \"functions\": {},  \"uneval_consts\": {}, \"items\": {}",
     serde_json::to_string(&local_crate.name).expect("serde_json string to json failed"),
     serde_json::to_string(&crate_id).expect("serde_json number to json failed"),
-    serde_json::to_string(&visited_allocs).expect("serde_json global allocs to json failed"),
+    serde_json::to_string(&allocs).expect("serde_json global allocs to json failed"),
     serde_json::to_string(&called_functions).expect("serde_json functions to json failed"),
     serde_json::to_string(&unevaluated_consts).expect("serde_json unevaluated consts to json failed"),
     serde_json::to_string(&json_items).expect("serde_json mono items to json failed"),

From 8bc2dd479a27ca65fc5cd828a74724a33fc9d3c7 Mon Sep 17 00:00:00 2001
From: dkcumming <daniel.cumming@runtimeverification.com>
Date: Tue, 14 Jan 2025 15:17:39 +1000
Subject: [PATCH 07/15] Fixed issues for latest Rust. Needs review!

---
 src/driver.rs  | 12 +++---------
 src/printer.rs | 22 ++++++++++++----------
 2 files changed, 15 insertions(+), 19 deletions(-)

diff --git a/src/driver.rs b/src/driver.rs
index 6486b8c..7406e10 100644
--- a/src/driver.rs
+++ b/src/driver.rs
@@ -24,7 +24,7 @@ extern crate rustc_smir;
 extern crate rustc_session;
 use rustc_middle::ty::TyCtxt;
 use rustc_driver::Compilation;
-use rustc_interface::{interface::Compiler, Queries};
+use rustc_interface::interface::Compiler;
 use rustc_smir::rustc_internal;
 
 struct StableMirCallbacks {
@@ -35,16 +35,10 @@ impl rustc_driver::Callbacks for StableMirCallbacks {
     fn after_analysis<'tcx>(
         &mut self,
         _compiler: &Compiler,
-        queries: &'tcx Queries<'tcx>,
+        tcx: TyCtxt<'tcx>,
     ) -> Compilation {
 
-        let _q = queries
-            .global_ctxt()
-            .unwrap()
-            .get_mut()
-            .enter(|tcx| {
-                let _ = rustc_internal::run(tcx, || (self.callback_fn)(tcx));
-            });
+        let _ = rustc_internal::run(tcx, || (self.callback_fn)(tcx));
 
         Compilation::Continue
     }
diff --git a/src/printer.rs b/src/printer.rs
index 2047136..b4bf470 100644
--- a/src/printer.rs
+++ b/src/printer.rs
@@ -11,7 +11,7 @@ extern crate stable_mir;
 extern crate serde;
 extern crate serde_json;
 use rustc_middle as middle;
-use rustc_middle::ty::{TyCtxt, Ty, TyKind, EarlyBinder, FnSig, GenericArgs, TypeFoldable, ParamEnv}; //, Binder, Generics, GenericPredicates
+use rustc_middle::ty::{TyCtxt, Ty, TyKind, EarlyBinder, FnSig, GenericArgs, TypeFoldable, TypingEnv}; //, Binder, Generics, GenericPredicates
 use rustc_session::config::{OutFileName, OutputType};
 use rustc_span::{def_id::{DefId, LOCAL_CRATE}, symbol}; // DUMMY_SP, symbol::sym::test;
 use rustc_smir::rustc_internal;
@@ -67,7 +67,8 @@ fn default_unwrap_early_binder<'tcx, T>(tcx: TyCtxt<'tcx>, id: DefId, v: EarlyBi
   where T: TypeFoldable<TyCtxt<'tcx>>
 {
   let v_copy = v.clone();
-  match tcx.try_instantiate_and_normalize_erasing_regions(GenericArgs::identity_for_item(tcx, id), tcx.param_env(id), v) {
+  let body = tcx.optimized_mir(id);
+  match tcx.try_instantiate_and_normalize_erasing_regions(GenericArgs::identity_for_item(tcx, id), body.typing_env(tcx), v) {
       Ok(res) => return res,
       Err(err) => { println!("{:?}", err); v_copy.skip_binder() }
   }
@@ -80,7 +81,8 @@ fn print_type<'tcx>(tcx: TyCtxt<'tcx>, id: DefId, ty: EarlyBinder<'tcx, Ty<'tcx>
     // since FnDef doesn't contain signature, lookup actual function type
     // via getting fn signature with parameters and resolving those parameters
     let sig0 = tcx.fn_sig(fun_id);
-    let sig1 = match tcx.try_instantiate_and_normalize_erasing_regions(args, tcx.param_env(fun_id), sig0) {
+    let body = tcx.optimized_mir(id);
+    let sig1 = match tcx.try_instantiate_and_normalize_erasing_regions(args, body.typing_env(tcx), sig0) {
       Ok(res) => res,
       Err(err) => { println!("{:?}", err); sig0.skip_binder() }
     };
@@ -372,7 +374,7 @@ type TyMap = HashMap<u64, (stable_mir::ty::TyKind, Option<stable_mir::abi::Layou
 
 struct InternedValueCollector<'tcx, 'local> {
   tcx: TyCtxt<'tcx>,
-  sym: String,
+  _sym: String,
   locals: &'local [LocalDecl],
   link_map: &'local mut LinkMap<'tcx>,
   visited_allocs: &'local mut AllocMap,
@@ -450,7 +452,7 @@ fn collect_vec_tys(collector: &mut InternedValueCollector, tys: Vec<stable_mir::
 }
 
 fn collect_arg_tys(collector: &mut InternedValueCollector, args: &stable_mir::ty::GenericArgs) {
-    use stable_mir::ty::{GenericArgKind::*, TyConst, TyConstKind::*};
+    use stable_mir::ty::{GenericArgKind::*, TyConstKind::*}; // TyConst
     for arg in args.0.iter() {
         match arg {
             Type(ty) => collect_ty(collector, *ty),
@@ -464,7 +466,7 @@ fn collect_arg_tys(collector: &mut InternedValueCollector, args: &stable_mir::ty
 }
 
 fn collect_ty(val_collector: &mut InternedValueCollector, val: stable_mir::ty::Ty) {
-    use stable_mir::ty::{GenericArgKind::*, RigidTy::*, TyConst, TyConstKind::*, TyKind::RigidTy};
+    use stable_mir::ty::{RigidTy::*, TyKind::RigidTy}; // GenericArgKind::*, TyConst, TyConstKind::*
     if val_collector.visited_tys.insert(hash(val), (val.kind(), val.layout().map(|l| l.shape()).ok())).is_some() {
         match val.kind() {
             RigidTy(Array(ty, _) | Pat(ty, _) | Slice(ty) | RawPtr(ty, _) | Ref(_, ty, _)) => {
@@ -530,7 +532,7 @@ impl MirVisitor for InternedValueCollector<'_, '_> {
   }
 
   fn visit_mir_const(&mut self, constant: &stable_mir::ty::MirConst, loc: stable_mir::mir::visit::Location) {
-    use stable_mir::ty::{ConstantKind, TyConst, TyConstKind};
+    use stable_mir::ty::{ConstantKind, TyConstKind}; // TyConst
     match constant.kind() {
       ConstantKind::Allocated(alloc) => {
         if debug_enabled() { println!("visited_mir_const::Allocated({:?}) as {:?}", alloc, constant.ty().kind()); }
@@ -568,7 +570,7 @@ fn collect_interned_values<'tcx,'local>(tcx: TyCtxt<'tcx>, items: Vec<&'local Mo
          for body in get_bodies(tcx, inst).into_iter() {
            InternedValueCollector {
              tcx,
-             sym: inst.mangled_name(),
+             _sym: inst.mangled_name(),
              locals: body.locals(),
              link_map: &mut calls_map,
              visited_tys: &mut visited_tys,
@@ -581,7 +583,7 @@ fn collect_interned_values<'tcx,'local>(tcx: TyCtxt<'tcx>, items: Vec<&'local Mo
          for body in get_bodies(tcx, &inst).into_iter() {
            InternedValueCollector {
              tcx,
-             sym: inst.mangled_name(),
+             _sym: inst.mangled_name(),
              locals: &[],
              link_map: &mut calls_map,
              visited_tys: &mut visited_tys,
@@ -612,7 +614,7 @@ impl MirVisitor for UnevaluatedConstCollector<'_,'_> {
     if let stable_mir::ty::ConstantKind::Unevaluated(uconst) = constant.kind() {
       let internal_def = rustc_internal::internal(self.tcx, uconst.def.def_id());
       let internal_args = rustc_internal::internal(self.tcx, uconst.args.clone());
-      let maybe_inst = rustc_middle::ty::Instance::try_resolve(self.tcx, ParamEnv::reveal_all(), internal_def, internal_args);
+      let maybe_inst = rustc_middle::ty::Instance::try_resolve(self.tcx, TypingEnv::post_analysis(self.tcx, internal_def), internal_def, internal_args);
       let inst = maybe_inst.ok().flatten().expect(format!("Failed to resolve mono item for {:?}", uconst).as_str());
       let internal_mono_item = rustc_middle::mir::mono::MonoItem::Fn(inst);
       let item_name = mono_item_name_int(self.tcx, &internal_mono_item);

From ff29db3a715380fee5ee28d592fe692df3fba3d8 Mon Sep 17 00:00:00 2001
From: Jost Berthold <jost.berthold@gmail.com>
Date: Tue, 14 Jan 2025 16:28:56 +1100
Subject: [PATCH 08/15] Depend on latest commit in beta as of today, in
 rust-lang/rust

---
 Makefile | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 78786e8..8101511 100644
--- a/Makefile
+++ b/Makefile
@@ -16,8 +16,13 @@ RUST_LIB_DIR=${RUST_INSTALL_DIR}/lib
 RUST_DEP_DIR=${RUST_BUILD_DIR}/stage1-rustc/${RUST_ARCH}/release/deps
 TARGET_DEP_DIR=${CURDIR}/target/${TARGET}/deps
 TEMP_DIR=${RUST_DIR}/temp
-RUST_REPO=https://github.com/runtimeverification/rust
-RUST_BRANCH=master
+#############################################
+# depend on the rust compiler
+RUST_REPO=https://github.com/rust-lang/rust
+# tip of the `beta` branch on 2025-01-14
+RUST_BRANCH=beta
+RUST_COMMIT=fe9b975
+#############################################
 TOOLCHAIN_NAME=smir_pretty
 RELEASE_FLAG=
 ifeq (${TARGET}, release)
@@ -31,7 +36,7 @@ build_all: rust_build rust_set_toolchain build
 setup: rust_clone
 
 update: ${RUST_SRC}
-	cd "${RUST_SRC}"; git fetch origin; git reset --hard origin/${RUST_BRANCH}
+	cd "${RUST_SRC}"; git fetch origin; git checkout ${RUST_COMMIT}
 
 build:
 	cargo build ${RELEASE_FLAG}

From 385acbdefcc6d5846718ed08db38b9957011c199 Mon Sep 17 00:00:00 2001
From: Jost Berthold <jost.berthold@gmail.com>
Date: Tue, 14 Jan 2025 16:37:35 +1100
Subject: [PATCH 09/15] check out correct commit from beta branch in setup

---
 Makefile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 8101511..eb361c2 100644
--- a/Makefile
+++ b/Makefile
@@ -60,7 +60,9 @@ prebuild_clean: ${RUST_SRC}
 
 # NOTE: a deeper clone depth is needed for the build process
 rust_clone:
-	git clone --depth 70 --single-branch --branch "${RUST_BRANCH}" "${RUST_REPO}" "${RUST_SRC}"
+	git clone --depth 70 --single-branch --branch "${RUST_BRANCH}" "${RUST_REPO}" "${RUST_SRC}" && \
+	cd "${RUST_SRC}" && \
+	git checkout ${RUST_COMMIT}
 
 
 # rust_build for linking against custom rustc is involved

From 147863885e7a76e22bf411021776b5fb31da92b1 Mon Sep 17 00:00:00 2001
From: Daniel Cumming <124537596+dkcumming@users.noreply.github.com>
Date: Wed, 15 Jan 2025 14:49:56 +1000
Subject: [PATCH 10/15] Filter and normalise json output for golden test runs
 (#24)

This PR adds functionality to filter and normalise the json output when
comparing output to the golden tests. Some cases when we want to
normalise output:
1. `"NormalSym"` mangled function names will have a hash following `17h`
that will [change when the compiler version
changes](https://github.com/rust-lang/rust/blob/2ae9916816a448fcaab3b2da461de754eda0055a/compiler/rustc_symbol_mangling/src/lib.rs#L69-L76).
```
<         "NormalSym": "_ZN3std2rt19lang_start_internal17h3166ab4c34d1da61E"
---
>         "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
                                                        ^----can ignore---^
```
2. `"symbol_name"` mangled function names will have a hash following
`17h` that will [change when the compiler version
changes](https://github.com/rust-lang/rust/blob/2ae9916816a448fcaab3b2da461de754eda0055a/compiler/rustc_symbol_mangling/src/lib.rs#L69-L76).
```
<       "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h40ba616aaa505a69E"
---
>       "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17hd98db8d17b807164E"
```
---
 .../failing/array.smir.json.expected          |  40 ++---
 .../failing/box.smir.json.expected            |  92 +++++------
 .../failing/defined-trait.smir.json.expected  | 144 +++++++++---------
 .../derive-copy-struct.smir.json.expected     |  48 +++---
 .../failing/generic.smir.json.expected        |  64 ++++----
 .../failing/panic_example.smir.json.expected  | 100 ++++++------
 .../std-string-empty.smir.json.expected       |  88 +++++------
 .../failing/std-to-string.smir.json.expected  | 140 ++++++++---------
 .../failing/str-empty.smir.json.expected      |  46 +++---
 .../failing/str-trivial.smir.json.expected    |  46 +++---
 tests/integration/normalise-filter.jq         |   5 +
 .../programs/assert_eq.smir.json.expected     |  50 +++---
 .../programs/binop.smir.json.expected         |  36 ++---
 .../programs/char-trivial.smir.json.expected  |  32 ++--
 .../programs/closure-args.smir.json.expected  |  36 ++---
 .../closure-no-args.smir.json.expected        |  36 ++---
 .../const-arithm-simple.smir.json.expected    |  36 ++---
 .../programs/div.smir.json.expected           |  32 ++--
 .../double-ref-deref.smir.json.expected       |  32 ++--
 .../programs/enum.smir.json.expected          |  30 ++--
 .../programs/fibonacci.smir.json.expected     |  36 ++---
 .../programs/float.smir.json.expected         |  32 ++--
 .../programs/modulo.smir.json.expected        |  32 ++--
 .../mutual_recursion.smir.json.expected       |  40 ++---
 .../option-construction.smir.json.expected    |  36 ++---
 .../primitive-type-bounds.smir.json.expected  |  32 ++--
 .../recursion-simple-match.smir.json.expected |  36 ++---
 .../recursion-simple.smir.json.expected       |  36 ++---
 .../programs/ref-deref.smir.json.expected     |  32 ++--
 .../programs/shl_min.smir.json.expected       |  32 ++--
 .../programs/slice.smir.json.expected         |  60 ++++----
 .../strange-ref-deref.smir.json.expected      |  32 ++--
 .../programs/struct.smir.json.expected        |  32 ++--
 .../programs/sum-to-n.smir.json.expected      |  40 ++---
 .../programs/tuple-eq.smir.json.expected      |  40 ++---
 .../programs/tuples-simple.smir.json.expected |  32 ++--
 36 files changed, 859 insertions(+), 854 deletions(-)

diff --git a/tests/integration/failing/array.smir.json.expected b/tests/integration/failing/array.smir.json.expected
index f7e9fe5..405f857 100644
--- a/tests/integration/failing/array.smir.json.expected
+++ b/tests/integration/failing/array.smir.json.expected
@@ -84,25 +84,25 @@
     [
       0,
       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
       13,
       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h38463d653158c251E"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
       14,
       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h3e77209299d57694E"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
       19,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17hedc2c4b05a98cdccE"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
@@ -114,19 +114,19 @@
     [
       21,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17hfa5d167701988535E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
       23,
       {
-        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h0a316578559eb371E"
+        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
       25,
       {
-        "NormalSym": "_ZN69_$LT$T$u20$as$u20$core..array..equality..SpecArrayEq$LT$U$C$_$GT$$GT$7spec_eq17hc18feedbfd2ac264E"
+        "NormalSym": "_ZN69_$LT$T$u20$as$u20$core..array..equality..SpecArrayEq$LT$U$C$_$GT$$GT$7spec_eq17h"
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@@ -138,13 +138,13 @@
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       {
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+        "NormalSym": "_ZN4core5array8equality103_$LT$impl$u20$core..cmp..PartialEq$LT$$u5b$U$u3b$$u20$N$u5d$$GT$$u20$for$u20$$u5b$T$u3b$$u20$N$u5d$$GT$2eq17h"
       }
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       {
-        "NormalSym": "_ZN4core9panicking5panic17h1b078f0122adb34fE"
+        "NormalSym": "_ZN4core9panicking5panic17h"
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@@ -525,7 +525,7 @@
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         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start17h83d84ef21d66e568E"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
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@@ -888,7 +888,7 @@
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         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h0a316578559eb371E"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
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@@ -1069,7 +1069,7 @@
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         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h38463d653158c251E"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
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@@ -1156,7 +1156,7 @@
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-      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17hf394d43ed8e21e13E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
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-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17hedc2c4b05a98cdccE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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@@ -1382,7 +1382,7 @@
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       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17hfa5d167701988535E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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@@ -1421,7 +1421,7 @@
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+      "symbol_name": "_ZN4core5array8equality103_$LT$impl$u20$core..cmp..PartialEq$LT$$u5b$U$u3b$$u20$N$u5d$$GT$$u20$for$u20$$u5b$T$u3b$$u20$N$u5d$$GT$2eq17h"
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@@ -1633,7 +1633,7 @@
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+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
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@@ -2207,7 +2207,7 @@
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         }
       },
-      "symbol_name": "_ZN5array4main17h093d1173588c7d34E"
+      "symbol_name": "_ZN5array4main17h"
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@@ -2365,7 +2365,7 @@
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+      "symbol_name": "_ZN69_$LT$T$u20$as$u20$core..array..equality..SpecArrayEq$LT$U$C$_$GT$$GT$7spec_eq17h"
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 }
diff --git a/tests/integration/failing/box.smir.json.expected b/tests/integration/failing/box.smir.json.expected
index f16c814..81b7952 100644
--- a/tests/integration/failing/box.smir.json.expected
+++ b/tests/integration/failing/box.smir.json.expected
@@ -580,25 +580,25 @@
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       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
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       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h9eaaee507c2d21d0E"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
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       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h92da431bec4d0519E"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
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       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h8e7729f80a58ac71E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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@@ -610,19 +610,19 @@
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       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17hb15b29e3a14a6765E"
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       {
-        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17hde9006a0949bffcfE"
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       {
-        "NormalSym": "_ZN4core9panicking14panic_nounwind17hee6445121510e179E"
+        "NormalSym": "_ZN4core9panicking14panic_nounwind17h"
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       {
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       }
     ],
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       {
-        "NormalSym": "_ZN5alloc5alloc6Global10alloc_impl17h878684328797f391E"
+        "NormalSym": "_ZN5alloc5alloc6Global10alloc_impl17h"
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       {
-        "NormalSym": "_ZN5alloc5alloc18handle_alloc_error17h367988acd01d106aE"
+        "NormalSym": "_ZN5alloc5alloc18handle_alloc_error17h"
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       {
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+        "NormalSym": ""
       }
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       {
-        "NormalSym": "_ZN4core3ptr13read_volatile18precondition_check17hd083d5824be049beE"
+        "NormalSym": "_ZN4core3ptr13read_volatile18precondition_check17h"
       }
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     [
@@ -676,37 +676,37 @@
     [
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       {
-        "NormalSym": "__rust_alloc_zeroed"
+        "NormalSym": "__"
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       {
-        "NormalSym": "_ZN5alloc5alloc5alloc17h0f1941cd38b492e0E"
+        "NormalSym": "_ZN5alloc5alloc5alloc17h"
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       {
-        "NormalSym": "_ZN4core3ptr8non_null16NonNull$LT$T$GT$13new_unchecked18precondition_check17h577e370d545c7763E"
+        "NormalSym": "_ZN4core3ptr8non_null16NonNull$LT$T$GT$13new_unchecked18precondition_check17h"
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       {
-        "NormalSym": "_ZN5alloc5alloc15exchange_malloc17h5e6611a095512e8fE"
+        "NormalSym": "_ZN5alloc5alloc15exchange_malloc17h"
       }
     ],
     [
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       {
-        "NormalSym": "__rust_dealloc"
+        "NormalSym": ""
       }
     ],
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+        "NormalSym": "_ZN4core3cmp5impls54_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$i32$GT$2eq17h"
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@@ -718,7 +718,7 @@
     [
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       {
-        "NormalSym": "_ZN63_$LT$alloc..alloc..Global$u20$as$u20$core..alloc..Allocator$GT$10deallocate17h31446c1bb7428470E"
+        "NormalSym": "_ZN63_$LT$alloc..alloc..Global$u20$as$u20$core..alloc..Allocator$GT$10deallocate17h"
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@@ -730,25 +730,25 @@
     [
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       {
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+        "NormalSym": "_ZN71_$LT$alloc..boxed..Box$LT$T$C$A$GT$$u20$as$u20$core..cmp..PartialEq$GT$2eq17h"
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     [
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       {
-        "NormalSym": "_ZN4core9panicking5panic17h1b078f0122adb34fE"
+        "NormalSym": "_ZN4core9panicking5panic17h"
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-        "NormalSym": "_ZN4core3ptr49drop_in_place$LT$alloc..boxed..Box$LT$i32$GT$$GT$17hba8e3b90af82b457E"
+        "NormalSym": "_ZN4core3ptr49drop_in_place$LT$alloc..boxed..Box$LT$i32$GT$$GT$17h"
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@@ -2454,7 +2454,7 @@
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         }
       },
-      "symbol_name": "_ZN3box4main17ha8a3550617341dbeE"
+      "symbol_name": "_ZN3box4main17h"
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@@ -2826,7 +2826,7 @@
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         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start17hfde27f23de2c91dcE"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
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@@ -3189,7 +3189,7 @@
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         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17hde9006a0949bffcfE"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
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@@ -3370,7 +3370,7 @@
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         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h9eaaee507c2d21d0E"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
     },
     {
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@@ -3381,7 +3381,7 @@
           "name": "std::intrinsics::size_of_val::<i32>"
         }
       },
-      "symbol_name": "_ZN4core10intrinsics11size_of_val17h7b6b24fed39c5d75E"
+      "symbol_name": "_ZN4core10intrinsics11size_of_val17h"
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@@ -3392,7 +3392,7 @@
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         }
       },
-      "symbol_name": "_ZN4core10intrinsics16min_align_of_val17h490053aac5bf90ebE"
+      "symbol_name": "_ZN4core10intrinsics16min_align_of_val17h"
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@@ -3572,7 +3572,7 @@
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         }
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+      "symbol_name": "_ZN4core3cmp5impls54_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$i32$GT$2eq17h"
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@@ -3659,7 +3659,7 @@
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-      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17hb9952c72c6f60b94E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
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         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h8e7729f80a58ac71E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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@@ -3885,7 +3885,7 @@
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         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17hb15b29e3a14a6765E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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         }
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-      "symbol_name": "_ZN4core3ptr13read_volatile18precondition_check17hd083d5824be049beE"
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@@ -5252,7 +5252,7 @@
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         }
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+      "symbol_name": "_ZN4core3ptr49drop_in_place$LT$alloc..boxed..Box$LT$i32$GT$$GT$17h"
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@@ -5291,7 +5291,7 @@
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+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
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     {
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         }
       },
-      "symbol_name": "_ZN4core3ptr8non_null16NonNull$LT$T$GT$13new_unchecked18precondition_check17h577e370d545c7763E"
+      "symbol_name": "_ZN4core3ptr8non_null16NonNull$LT$T$GT$13new_unchecked18precondition_check17h"
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@@ -5692,7 +5692,7 @@
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         }
       },
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+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
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@@ -6536,7 +6536,7 @@
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         }
       },
-      "symbol_name": "_ZN5alloc5alloc15exchange_malloc17h5e6611a095512e8fE"
+      "symbol_name": "_ZN5alloc5alloc15exchange_malloc17h"
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@@ -7490,7 +7490,7 @@
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         }
       },
-      "symbol_name": "_ZN5alloc5alloc5alloc17h0f1941cd38b492e0E"
+      "symbol_name": "_ZN5alloc5alloc5alloc17h"
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       },
-      "symbol_name": "_ZN5alloc5alloc6Global10alloc_impl17h878684328797f391E"
+      "symbol_name": "_ZN5alloc5alloc6Global10alloc_impl17h"
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@@ -11774,7 +11774,7 @@
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         }
       },
-      "symbol_name": "_ZN5alloc5boxed12Box$LT$T$GT$3new17hb7b054b22201ca41E"
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@@ -12684,7 +12684,7 @@
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         }
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+      "symbol_name": "_ZN63_$LT$alloc..alloc..Global$u20$as$u20$core..alloc..Allocator$GT$10deallocate17h"
     },
     {
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@@ -13024,7 +13024,7 @@
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         }
       },
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+      "symbol_name": "_ZN71_$LT$alloc..boxed..Box$LT$T$C$A$GT$$u20$as$u20$core..cmp..PartialEq$GT$2eq17h"
     },
     {
       "details": null,
@@ -14077,7 +14077,7 @@
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         }
       },
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+      "symbol_name": "_ZN72_$LT$alloc..boxed..Box$LT$T$C$A$GT$$u20$as$u20$core..ops..drop..Drop$GT$4drop17h"
     }
   ]
 }
diff --git a/tests/integration/failing/defined-trait.smir.json.expected b/tests/integration/failing/defined-trait.smir.json.expected
index 1e7bc4a..dbc3d60 100644
--- a/tests/integration/failing/defined-trait.smir.json.expected
+++ b/tests/integration/failing/defined-trait.smir.json.expected
@@ -1189,25 +1189,25 @@
     [
       0,
       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
       13,
       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17hdaaf8f66ba8b07fbE"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
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       "details": null,
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 }
diff --git a/tests/integration/failing/derive-copy-struct.smir.json.expected b/tests/integration/failing/derive-copy-struct.smir.json.expected
index 88b6034..893bf93 100644
--- a/tests/integration/failing/derive-copy-struct.smir.json.expected
+++ b/tests/integration/failing/derive-copy-struct.smir.json.expected
@@ -55,25 +55,25 @@
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       {
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       {
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+        "NormalSym": "_ZN4core5array85_$LT$impl$u20$core..ops..index..Index$LT$I$GT$$u20$for$u20$$u5b$T$u3b$$u20$N$u5d$$GT$5index17h"
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       {
-        "NormalSym": "_ZN18derive_copy_struct20take_first_container17h5e6aa0bbd5320b00E"
+        "NormalSym": "_ZN18derive_copy_struct20take_first_container17h"
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       {
-        "NormalSym": "_ZN4core9panicking5panic17h1b078f0122adb34fE"
+        "NormalSym": "_ZN4core9panicking5panic17h"
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       },
-      "symbol_name": "_ZN18derive_copy_struct20take_first_container17h5e6aa0bbd5320b00E"
+      "symbol_name": "_ZN18derive_copy_struct20take_first_container17h"
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@@ -847,7 +847,7 @@
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-      "symbol_name": "_ZN18derive_copy_struct4main17h7f2b938122f7e822E"
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       },
-      "symbol_name": "_ZN3std2rt10lang_start17h10e45513cdd171a5E"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
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+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
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@@ -1763,7 +1763,7 @@
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         }
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-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h16e5330c2a1dc1adE"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
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@@ -1850,7 +1850,7 @@
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       },
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+      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
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     {
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@@ -2009,7 +2009,7 @@
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         }
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-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h849aaec59c3c4beaE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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@@ -2076,7 +2076,7 @@
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         }
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-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17hb7db3fe2604a1199E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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@@ -2115,7 +2115,7 @@
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+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
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@@ -2262,7 +2262,7 @@
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+      "symbol_name": "_ZN4core5array85_$LT$impl$u20$core..ops..index..Index$LT$I$GT$$u20$for$u20$$u5b$T$u3b$$u20$N$u5d$$GT$5index17h"
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@@ -2378,7 +2378,7 @@
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@@ -2474,7 +2474,7 @@
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       },
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@@ -2574,7 +2574,7 @@
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 }
diff --git a/tests/integration/failing/generic.smir.json.expected b/tests/integration/failing/generic.smir.json.expected
index e7192f5..7319815 100644
--- a/tests/integration/failing/generic.smir.json.expected
+++ b/tests/integration/failing/generic.smir.json.expected
@@ -109,25 +109,25 @@
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       {
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+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
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       {
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       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h9c63d3cb820058e9E"
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-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h69bc9c68da00ee1dE"
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+        "NormalSym": "_ZN4core5array85_$LT$impl$u20$core..ops..index..Index$LT$I$GT$$u20$for$u20$$u5b$T$u3b$$u20$N$u5d$$GT$5index17h"
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     [
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       {
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+        "NormalSym": "_ZN4core5array85_$LT$impl$u20$core..ops..index..Index$LT$I$GT$$u20$for$u20$$u5b$T$u3b$$u20$N$u5d$$GT$5index17h"
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       {
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         }
       },
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@@ -1124,7 +1124,7 @@
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@@ -1211,7 +1211,7 @@
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@@ -1370,7 +1370,7 @@
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         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h69bc9c68da00ee1dE"
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@@ -1476,7 +1476,7 @@
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@@ -1623,7 +1623,7 @@
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@@ -1770,7 +1770,7 @@
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@@ -1886,7 +1886,7 @@
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@@ -2002,7 +2002,7 @@
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@@ -2098,7 +2098,7 @@
           "name": "<() as std::process::Termination>::report"
         }
       },
-      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h3294533c6832f1ebE"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
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       "details": null,
@@ -2295,7 +2295,7 @@
           "name": "index_slice::<char>"
         }
       },
-      "symbol_name": "_ZN7generic11index_slice17h40d46dc9ff7722aeE"
+      "symbol_name": "_ZN7generic11index_slice17h"
     },
     {
       "details": null,
@@ -2492,7 +2492,7 @@
           "name": "index_slice::<i32>"
         }
       },
-      "symbol_name": "_ZN7generic11index_slice17hb47d8d47e6482c76E"
+      "symbol_name": "_ZN7generic11index_slice17h"
     },
     {
       "details": null,
@@ -3441,7 +3441,7 @@
           "name": "main"
         }
       },
-      "symbol_name": "_ZN7generic4main17h7a9d065ae1987732E"
+      "symbol_name": "_ZN7generic4main17h"
     },
     {
       "details": null,
@@ -3541,7 +3541,7 @@
           "name": "<std::ops::RangeFull as std::slice::SliceIndex<[i32]>>::index"
         }
       },
-      "symbol_name": "_ZN97_$LT$core..ops..range..RangeFull$u20$as$u20$core..slice..index..SliceIndex$LT$$u5b$T$u5d$$GT$$GT$5index17hb38d4c098f158998E"
+      "symbol_name": "_ZN97_$LT$core..ops..range..RangeFull$u20$as$u20$core..slice..index..SliceIndex$LT$$u5b$T$u5d$$GT$$GT$5index17h"
     },
     {
       "details": null,
@@ -3641,7 +3641,7 @@
           "name": "<std::ops::RangeFull as std::slice::SliceIndex<[char]>>::index"
         }
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-      "symbol_name": "_ZN97_$LT$core..ops..range..RangeFull$u20$as$u20$core..slice..index..SliceIndex$LT$$u5b$T$u5d$$GT$$GT$5index17hc84cc97dcb68f0ccE"
+      "symbol_name": "_ZN97_$LT$core..ops..range..RangeFull$u20$as$u20$core..slice..index..SliceIndex$LT$$u5b$T$u5d$$GT$$GT$5index17h"
     }
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 }
diff --git a/tests/integration/failing/panic_example.smir.json.expected b/tests/integration/failing/panic_example.smir.json.expected
index 56b3b47..a167752 100644
--- a/tests/integration/failing/panic_example.smir.json.expected
+++ b/tests/integration/failing/panic_example.smir.json.expected
@@ -497,25 +497,25 @@
     [
       7,
       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
       20,
       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h163f76a593f9a61dE"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
       21,
       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h6e8cf99dfda5fdefE"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
       25,
       {
-        "NormalSym": "_ZN3std9panicking11begin_panic28_$u7b$$u7b$closure$u7d$$u7d$17h1ebb1eaab9f30b5aE"
+        "NormalSym": "_ZN3std9panicking11begin_panic28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
@@ -527,7 +527,7 @@
     [
       29,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h11ec6afa27e3d406E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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     [
@@ -539,31 +539,31 @@
     [
       31,
       {
-        "NormalSym": "_ZN3std3sys9backtrace26__rust_end_short_backtrace17h4bae7cc86322177bE"
+        "NormalSym": "_ZN3std3sys9backtrace26__rust_end_short_backtrace17h"
       }
     ],
     [
       36,
       {
-        "NormalSym": "_ZN3std9panicking20rust_panic_with_hook17he6fc28793b894d73E"
+        "NormalSym": "_ZN3std9panicking20rust_panic_with_hook17h"
       }
     ],
     [
       42,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h86e2963be1a2fd6aE"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
       44,
       {
-        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17hc407815e8e27866fE"
+        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
       48,
       {
-        "NormalSym": "_ZN4core9panicking14panic_nounwind17hee6445121510e179E"
+        "NormalSym": "_ZN4core9panicking14panic_nounwind17h"
       }
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     [
@@ -575,31 +575,31 @@
     [
       50,
       {
-        "NormalSym": "_ZN4core9panicking9panic_fmt17h8510a50a874ddcc2E"
+        "NormalSym": "_ZN4core9panicking9panic_fmt17h"
       }
     ],
     [
       63,
       {
-        "NormalSym": "_ZN5alloc5alloc6Global10alloc_impl17hfeb4b7829cd89493E"
+        "NormalSym": "_ZN5alloc5alloc6Global10alloc_impl17h"
       }
     ],
     [
       66,
       {
-        "NormalSym": "_ZN5alloc5alloc18handle_alloc_error17h367988acd01d106aE"
+        "NormalSym": "_ZN5alloc5alloc18handle_alloc_error17h"
       }
     ],
     [
       73,
       {
-        "NormalSym": "__rust_alloc"
+        "NormalSym": ""
       }
     ],
     [
       75,
       {
-        "NormalSym": "_ZN4core3ptr13read_volatile18precondition_check17hc773488a477a662fE"
+        "NormalSym": "_ZN4core3ptr13read_volatile18precondition_check17h"
       }
     ],
     [
@@ -611,55 +611,55 @@
     [
       78,
       {
-        "NormalSym": "__rust_alloc_zeroed"
+        "NormalSym": "__"
       }
     ],
     [
       79,
       {
-        "NormalSym": "_ZN5alloc5alloc5alloc17h214157fcd92df279E"
+        "NormalSym": "_ZN5alloc5alloc5alloc17h"
       }
     ],
     [
       80,
       {
-        "NormalSym": "_ZN4core3ptr8non_null16NonNull$LT$T$GT$13new_unchecked18precondition_check17h180abd43edd08785E"
+        "NormalSym": "_ZN4core3ptr8non_null16NonNull$LT$T$GT$13new_unchecked18precondition_check17h"
       }
     ],
     [
       88,
       {
-        "NormalSym": "_ZN5alloc5alloc15exchange_malloc17h5443007c4b77064aE"
+        "NormalSym": "_ZN5alloc5alloc15exchange_malloc17h"
       }
     ],
     [
       93,
       {
-        "NormalSym": "_ZN3std7process5abort17h4d7b628a2864edb7E"
+        "NormalSym": "_ZN3std7process5abort17h"
       }
     ],
     [
       94,
       {
-        "NormalSym": "_ZN3std9panicking14payload_as_str17h5ede2995a2a0c693E"
+        "NormalSym": "_ZN3std9panicking14payload_as_str17h"
       }
     ],
     [
       96,
       {
-        "NormalSym": "_ZN4core3fmt9Formatter9write_str17hd334b351ded225feE"
+        "NormalSym": "_ZN4core3fmt9Formatter9write_str17h"
       }
     ],
     [
       101,
       {
-        "NormalSym": "_ZN5alloc5boxed12Box$LT$T$GT$3new17hfb7bad2afdef8431E"
+        "NormalSym": "_ZN5alloc5boxed12Box$LT$T$GT$3new17h"
       }
     ],
     [
       112,
       {
-        "NormalSym": "_ZN3std9panicking11begin_panic17h046658c3c0b9185bE"
+        "NormalSym": "_ZN3std9panicking11begin_panic17h"
       }
     ],
     [
@@ -783,7 +783,7 @@
           "name": "main"
         }
       },
-      "symbol_name": "_ZN13panic_example4main17h1a3a8ec0839c9696E"
+      "symbol_name": "_ZN13panic_example4main17h"
     },
     {
       "details": null,
@@ -1153,7 +1153,7 @@
           "name": "<&str as std::any::Any>::type_id"
         }
       },
-      "symbol_name": "_ZN36_$LT$T$u20$as$u20$core..any..Any$GT$7type_id17h5fbaa8559e09a241E"
+      "symbol_name": "_ZN36_$LT$T$u20$as$u20$core..any..Any$GT$7type_id17h"
     },
     {
       "details": null,
@@ -1525,7 +1525,7 @@
           "name": "std::rt::lang_start::<()>"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start17hd4017724170dc624E"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
     },
     {
       "details": null,
@@ -1888,7 +1888,7 @@
           "name": "std::rt::lang_start::<()>::{closure#0}"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17hc407815e8e27866fE"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -2069,7 +2069,7 @@
           "name": "std::sys::backtrace::__rust_end_short_backtrace::<{closure@std::rt::begin_panic<&str>::{closure#0}}, !>"
         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace26__rust_end_short_backtrace17h4bae7cc86322177bE"
+      "symbol_name": "_ZN3std3sys9backtrace26__rust_end_short_backtrace17h"
     },
     {
       "details": null,
@@ -2250,7 +2250,7 @@
           "name": "std::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>"
         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h163f76a593f9a61dE"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
     },
     {
       "details": null,
@@ -2448,7 +2448,7 @@
           "name": "std::rt::begin_panic::<&str>"
         }
       },
-      "symbol_name": "_ZN3std9panicking11begin_panic17h046658c3c0b9185bE"
+      "symbol_name": "_ZN3std9panicking11begin_panic17h"
     },
     {
       "details": null,
@@ -2890,7 +2890,7 @@
           "name": "std::rt::begin_panic::<&str>::{closure#0}"
         }
       },
-      "symbol_name": "_ZN3std9panicking11begin_panic28_$u7b$$u7b$closure$u7d$$u7d$17h1ebb1eaab9f30b5aE"
+      "symbol_name": "_ZN3std9panicking11begin_panic28_$u7b$$u7b$closure$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -2901,7 +2901,7 @@
           "name": "std::intrinsics::type_id::<&str>"
         }
       },
-      "symbol_name": "_ZN4core10intrinsics7type_id17h948ad9d7a3771dcdE"
+      "symbol_name": "_ZN4core10intrinsics7type_id17h"
     },
     {
       "details": null,
@@ -2988,7 +2988,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h0b6b3134fd4818cdE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -3055,7 +3055,7 @@
           "name": "<fn() as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h11ec6afa27e3d406E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -3214,7 +3214,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h86e2963be1a2fd6aE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -4322,7 +4322,7 @@
           "name": "std::ptr::read_volatile::precondition_check"
         }
       },
-      "symbol_name": "_ZN4core3ptr13read_volatile18precondition_check17hc773488a477a662fE"
+      "symbol_name": "_ZN4core3ptr13read_volatile18precondition_check17h"
     },
     {
       "details": null,
@@ -4361,7 +4361,7 @@
           "name": "std::ptr::drop_in_place::<&str>"
         }
       },
-      "symbol_name": "_ZN4core3ptr28drop_in_place$LT$$RF$str$GT$17h77c483de56b3845cE"
+      "symbol_name": "_ZN4core3ptr28drop_in_place$LT$$RF$str$GT$17h"
     },
     {
       "details": null,
@@ -4400,7 +4400,7 @@
           "name": "std::ptr::drop_in_place::<std::rt::begin_panic::Payload<&str>>"
         }
       },
-      "symbol_name": "_ZN4core3ptr72drop_in_place$LT$std..panicking..begin_panic..Payload$LT$$RF$str$GT$$GT$17h1b47a62f19fbd5f1E"
+      "symbol_name": "_ZN4core3ptr72drop_in_place$LT$std..panicking..begin_panic..Payload$LT$$RF$str$GT$$GT$17h"
     },
     {
       "details": null,
@@ -4439,7 +4439,7 @@
           "name": "std::ptr::drop_in_place::<{closure@std::rt::lang_start<()>::{closure#0}}>"
         }
       },
-      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h21a5cf619fdd0e23E"
+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
     },
     {
       "details": null,
@@ -4744,7 +4744,7 @@
           "name": "std::ptr::NonNull::<T>::new_unchecked::precondition_check"
         }
       },
-      "symbol_name": "_ZN4core3ptr8non_null16NonNull$LT$T$GT$13new_unchecked18precondition_check17h180abd43edd08785E"
+      "symbol_name": "_ZN4core3ptr8non_null16NonNull$LT$T$GT$13new_unchecked18precondition_check17h"
     },
     {
       "details": null,
@@ -4850,7 +4850,7 @@
           "name": "<std::rt::begin_panic::Payload<&str> as core::panic::PanicPayload>::as_str"
         }
       },
-      "symbol_name": "_ZN4core5panic12PanicPayload6as_str17h34f70170a81b2c4bE"
+      "symbol_name": "_ZN4core5panic12PanicPayload6as_str17h"
     },
     {
       "details": null,
@@ -4946,7 +4946,7 @@
           "name": "<() as std::process::Termination>::report"
         }
       },
-      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h6e8cf99dfda5fdefE"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
     },
     {
       "details": null,
@@ -5790,7 +5790,7 @@
           "name": "alloc::alloc::exchange_malloc"
         }
       },
-      "symbol_name": "_ZN5alloc5alloc15exchange_malloc17h5443007c4b77064aE"
+      "symbol_name": "_ZN5alloc5alloc15exchange_malloc17h"
     },
     {
       "details": null,
@@ -6744,7 +6744,7 @@
           "name": "std::alloc::alloc"
         }
       },
-      "symbol_name": "_ZN5alloc5alloc5alloc17h214157fcd92df279E"
+      "symbol_name": "_ZN5alloc5alloc5alloc17h"
     },
     {
       "details": null,
@@ -10770,7 +10770,7 @@
           "name": "std::alloc::Global::alloc_impl"
         }
       },
-      "symbol_name": "_ZN5alloc5alloc6Global10alloc_impl17hfeb4b7829cd89493E"
+      "symbol_name": "_ZN5alloc5alloc6Global10alloc_impl17h"
     },
     {
       "details": null,
@@ -11028,7 +11028,7 @@
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         }
       },
-      "symbol_name": "_ZN5alloc5boxed12Box$LT$T$GT$3new17hfb7bad2afdef8431E"
+      "symbol_name": "_ZN5alloc5boxed12Box$LT$T$GT$3new17h"
     },
     {
       "details": null,
@@ -11458,7 +11458,7 @@
           "name": "<std::rt::begin_panic::Payload<&str> as std::fmt::Display>::fmt"
         }
       },
-      "symbol_name": "_ZN84_$LT$std..panicking..begin_panic..Payload$LT$A$GT$$u20$as$u20$core..fmt..Display$GT$3fmt17h2995801f2bca7f36E"
+      "symbol_name": "_ZN84_$LT$std..panicking..begin_panic..Payload$LT$A$GT$$u20$as$u20$core..fmt..Display$GT$3fmt17h"
     },
     {
       "details": null,
@@ -11768,7 +11768,7 @@
           "name": "<std::rt::begin_panic::Payload<&str> as core::panic::PanicPayload>::get"
         }
       },
-      "symbol_name": "_ZN91_$LT$std..panicking..begin_panic..Payload$LT$A$GT$$u20$as$u20$core..panic..PanicPayload$GT$3get17h7e5b46332dff10e9E"
+      "symbol_name": "_ZN91_$LT$std..panicking..begin_panic..Payload$LT$A$GT$$u20$as$u20$core..panic..PanicPayload$GT$3get17h"
     },
     {
       "details": null,
@@ -12772,7 +12772,7 @@
           "name": "<std::rt::begin_panic::Payload<&str> as core::panic::PanicPayload>::take_box"
         }
       },
-      "symbol_name": "_ZN91_$LT$std..panicking..begin_panic..Payload$LT$A$GT$$u20$as$u20$core..panic..PanicPayload$GT$8take_box17h38a7afb365d90d28E"
+      "symbol_name": "_ZN91_$LT$std..panicking..begin_panic..Payload$LT$A$GT$$u20$as$u20$core..panic..PanicPayload$GT$8take_box17h"
     }
   ]
 }
diff --git a/tests/integration/failing/std-string-empty.smir.json.expected b/tests/integration/failing/std-string-empty.smir.json.expected
index 6fee598..2c8d4fd 100644
--- a/tests/integration/failing/std-string-empty.smir.json.expected
+++ b/tests/integration/failing/std-string-empty.smir.json.expected
@@ -559,25 +559,25 @@
     [
       0,
       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
       13,
       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h8a4d857081dbfaf6E"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
       14,
       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17hbf94cbfcda9701e6E"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
       19,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17heba02fa12c9fe2d9E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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     [
@@ -589,31 +589,31 @@
     [
       23,
       {
-        "NormalSym": "_ZN4core9panicking14panic_nounwind17hee6445121510e179E"
+        "NormalSym": "_ZN4core9panicking14panic_nounwind17h"
       }
     ],
     [
       28,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17he70aeb4246727f24E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
       30,
       {
-        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h1929e2e8e9434881E"
+        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
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       {
-        "NormalSym": "_ZN70_$LT$alloc..vec..Vec$LT$T$C$A$GT$$u20$as$u20$core..ops..drop..Drop$GT$4drop17ha7e6a1ccddf30af0E"
+        "NormalSym": "_ZN70_$LT$alloc..vec..Vec$LT$T$C$A$GT$$u20$as$u20$core..ops..drop..Drop$GT$4drop17h"
       }
     ],
     [
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       {
-        "NormalSym": "_ZN77_$LT$alloc..raw_vec..RawVec$LT$T$C$A$GT$$u20$as$u20$core..ops..drop..Drop$GT$4drop17hdec771535c18b312E"
+        "NormalSym": "_ZN77_$LT$alloc..raw_vec..RawVec$LT$T$C$A$GT$$u20$as$u20$core..ops..drop..Drop$GT$4drop17h"
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     [
@@ -625,19 +625,19 @@
     [
       44,
       {
-        "NormalSym": "_ZN4core9panicking9panic_fmt17h8510a50a874ddcc2E"
+        "NormalSym": "_ZN4core9panicking9panic_fmt17h"
       }
     ],
     [
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       {
-        "NormalSym": "_ZN4core3num23_$LT$impl$u20$usize$GT$13unchecked_mul18precondition_check17hbe9fc50f0b01d61dE"
+        "NormalSym": "_ZN4core3num23_$LT$impl$u20$usize$GT$13unchecked_mul18precondition_check17h"
       }
     ],
     [
       65,
       {
-        "NormalSym": "__rust_dealloc"
+        "NormalSym": ""
       }
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@@ -661,55 +661,55 @@
     [
       77,
       {
-        "NormalSym": "_ZN5alloc7raw_vec19RawVec$LT$T$C$A$GT$14current_memory17h36f247bc9566572eE"
+        "NormalSym": "_ZN5alloc7raw_vec19RawVec$LT$T$C$A$GT$14current_memory17h"
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       {
-        "NormalSym": "_ZN63_$LT$alloc..alloc..Global$u20$as$u20$core..alloc..Allocator$GT$10deallocate17h04db9e7ed4d0984aE"
+        "NormalSym": "_ZN63_$LT$alloc..alloc..Global$u20$as$u20$core..alloc..Allocator$GT$10deallocate17h"
       }
     ],
     [
       79,
       {
-        "NormalSym": "_ZN4core5slice3raw14from_raw_parts18precondition_check17hd731fe266d532e13E"
+        "NormalSym": "_ZN4core5slice3raw14from_raw_parts18precondition_check17h"
       }
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       80,
       {
-        "NormalSym": "_ZN73_$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$5equal17h48a560245506d1e3E"
+        "NormalSym": "_ZN73_$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$5equal17h"
       }
     ],
     [
       86,
       {
-        "NormalSym": "_ZN5alloc6string6String3new17h10f73349ad3baa53E"
+        "NormalSym": "_ZN5alloc6string6String3new17h"
       }
     ],
     [
       87,
       {
-        "NormalSym": "_ZN77_$LT$alloc..string..String$u20$as$u20$core..cmp..PartialEq$LT$$RF$str$GT$$GT$2eq17h563fb1f7b684b2a7E"
+        "NormalSym": "_ZN77_$LT$alloc..string..String$u20$as$u20$core..cmp..PartialEq$LT$$RF$str$GT$$GT$2eq17h"
       }
     ],
     [
       88,
       {
-        "NormalSym": "_ZN4core9panicking5panic17h1b078f0122adb34fE"
+        "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
       89,
       {
-        "NormalSym": "_ZN4core3ptr42drop_in_place$LT$alloc..string..String$GT$17ha4e7fc423a077132E"
+        "NormalSym": "_ZN4core3ptr42drop_in_place$LT$alloc..string..String$GT$17h"
       }
     ],
     [
       90,
       {
-        "NormalSym": "_ZN4core3ptr46drop_in_place$LT$alloc..vec..Vec$LT$u8$GT$$GT$17h63cbb232c447c463E"
+        "NormalSym": "_ZN4core3ptr46drop_in_place$LT$alloc..vec..Vec$LT$u8$GT$$GT$17h"
       }
     ],
     [
@@ -721,7 +721,7 @@
     [
       92,
       {
-        "NormalSym": "_ZN4core3ptr53drop_in_place$LT$alloc..raw_vec..RawVec$LT$u8$GT$$GT$17h0beb4ebee2e07298E"
+        "NormalSym": "_ZN4core3ptr53drop_in_place$LT$alloc..raw_vec..RawVec$LT$u8$GT$$GT$17h"
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   ],
@@ -1184,7 +1184,7 @@
           "name": "main"
         }
       },
-      "symbol_name": "_ZN16std_string_empty4main17hd07ef96c1ecf9236E"
+      "symbol_name": "_ZN16std_string_empty4main17h"
     },
     {
       "details": null,
@@ -1556,7 +1556,7 @@
           "name": "std::rt::lang_start::<()>"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start17h9123a60f5321d3daE"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
     },
     {
       "details": null,
@@ -1919,7 +1919,7 @@
           "name": "std::rt::lang_start::<()>::{closure#0}"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h1929e2e8e9434881E"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -2100,7 +2100,7 @@
           "name": "std::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>"
         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h8a4d857081dbfaf6E"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
     },
     {
       "details": null,
@@ -2111,7 +2111,7 @@
           "name": "std::intrinsics::size_of_val::<[u8]>"
         }
       },
-      "symbol_name": "_ZN4core10intrinsics11size_of_val17hb66943408c33bf76E"
+      "symbol_name": "_ZN4core10intrinsics11size_of_val17h"
     },
     {
       "details": null,
@@ -2547,7 +2547,7 @@
           "name": "core::num::<impl usize>::unchecked_mul::precondition_check"
         }
       },
-      "symbol_name": "_ZN4core3num23_$LT$impl$u20$usize$GT$13unchecked_mul18precondition_check17hbe9fc50f0b01d61dE"
+      "symbol_name": "_ZN4core3num23_$LT$impl$u20$usize$GT$13unchecked_mul18precondition_check17h"
     },
     {
       "details": null,
@@ -2634,7 +2634,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17ha8ba36b85ae7fbb9E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -2793,7 +2793,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17he70aeb4246727f24E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -2860,7 +2860,7 @@
           "name": "<fn() as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17heba02fa12c9fe2d9E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -2923,7 +2923,7 @@
           "name": "std::ptr::drop_in_place::<std::string::String>"
         }
       },
-      "symbol_name": "_ZN4core3ptr42drop_in_place$LT$alloc..string..String$GT$17ha4e7fc423a077132E"
+      "symbol_name": "_ZN4core3ptr42drop_in_place$LT$alloc..string..String$GT$17h"
     },
     {
       "details": null,
@@ -3094,7 +3094,7 @@
           "name": "std::ptr::drop_in_place::<std::vec::Vec<u8>>"
         }
       },
-      "symbol_name": "_ZN4core3ptr46drop_in_place$LT$alloc..vec..Vec$LT$u8$GT$$GT$17h63cbb232c447c463E"
+      "symbol_name": "_ZN4core3ptr46drop_in_place$LT$alloc..vec..Vec$LT$u8$GT$$GT$17h"
     },
     {
       "details": null,
@@ -3208,7 +3208,7 @@
           "name": "std::ptr::drop_in_place::<alloc::raw_vec::RawVec<u8>>"
         }
       },
-      "symbol_name": "_ZN4core3ptr53drop_in_place$LT$alloc..raw_vec..RawVec$LT$u8$GT$$GT$17h0beb4ebee2e07298E"
+      "symbol_name": "_ZN4core3ptr53drop_in_place$LT$alloc..raw_vec..RawVec$LT$u8$GT$$GT$17h"
     },
     {
       "details": null,
@@ -3247,7 +3247,7 @@
           "name": "std::ptr::drop_in_place::<{closure@std::rt::lang_start<()>::{closure#0}}>"
         }
       },
-      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17hd3783a560cffe87eE"
+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
     },
     {
       "details": null,
@@ -4894,7 +4894,7 @@
           "name": "std::slice::from_raw_parts::precondition_check"
         }
       },
-      "symbol_name": "_ZN4core5slice3raw14from_raw_parts18precondition_check17hd731fe266d532e13E"
+      "symbol_name": "_ZN4core5slice3raw14from_raw_parts18precondition_check17h"
     },
     {
       "details": null,
@@ -4990,7 +4990,7 @@
           "name": "<() as std::process::Termination>::report"
         }
       },
-      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17hbf94cbfcda9701e6E"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
     },
     {
       "details": null,
@@ -5173,7 +5173,7 @@
           "name": "std::string::String::new"
         }
       },
-      "symbol_name": "_ZN5alloc6string6String3new17h10f73349ad3baa53E"
+      "symbol_name": "_ZN5alloc6string6String3new17h"
     },
     {
       "details": null,
@@ -6404,7 +6404,7 @@
           "name": "alloc::raw_vec::RawVec::<u8>::current_memory"
         }
       },
-      "symbol_name": "_ZN5alloc7raw_vec19RawVec$LT$T$C$A$GT$14current_memory17h36f247bc9566572eE"
+      "symbol_name": "_ZN5alloc7raw_vec19RawVec$LT$T$C$A$GT$14current_memory17h"
     },
     {
       "details": null,
@@ -7314,7 +7314,7 @@
           "name": "<std::alloc::Global as std::alloc::Allocator>::deallocate"
         }
       },
-      "symbol_name": "_ZN63_$LT$alloc..alloc..Global$u20$as$u20$core..alloc..Allocator$GT$10deallocate17h04db9e7ed4d0984aE"
+      "symbol_name": "_ZN63_$LT$alloc..alloc..Global$u20$as$u20$core..alloc..Allocator$GT$10deallocate17h"
     },
     {
       "details": null,
@@ -7849,7 +7849,7 @@
           "name": "<std::vec::Vec<u8> as std::ops::Drop>::drop"
         }
       },
-      "symbol_name": "_ZN70_$LT$alloc..vec..Vec$LT$T$C$A$GT$$u20$as$u20$core..ops..drop..Drop$GT$4drop17ha7e6a1ccddf30af0E"
+      "symbol_name": "_ZN70_$LT$alloc..vec..Vec$LT$T$C$A$GT$$u20$as$u20$core..ops..drop..Drop$GT$4drop17h"
     },
     {
       "details": null,
@@ -8536,7 +8536,7 @@
           "name": "<[u8] as core::slice::cmp::SlicePartialEq<u8>>::equal"
         }
       },
-      "symbol_name": "_ZN73_$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$5equal17h48a560245506d1e3E"
+      "symbol_name": "_ZN73_$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$5equal17h"
     },
     {
       "details": null,
@@ -8964,7 +8964,7 @@
           "name": "<alloc::raw_vec::RawVec<u8> as std::ops::Drop>::drop"
         }
       },
-      "symbol_name": "_ZN77_$LT$alloc..raw_vec..RawVec$LT$T$C$A$GT$$u20$as$u20$core..ops..drop..Drop$GT$4drop17hdec771535c18b312E"
+      "symbol_name": "_ZN77_$LT$alloc..raw_vec..RawVec$LT$T$C$A$GT$$u20$as$u20$core..ops..drop..Drop$GT$4drop17h"
     },
     {
       "details": null,
@@ -10374,7 +10374,7 @@
           "name": "<std::string::String as std::cmp::PartialEq<&str>>::eq"
         }
       },
-      "symbol_name": "_ZN77_$LT$alloc..string..String$u20$as$u20$core..cmp..PartialEq$LT$$RF$str$GT$$GT$2eq17h563fb1f7b684b2a7E"
+      "symbol_name": "_ZN77_$LT$alloc..string..String$u20$as$u20$core..cmp..PartialEq$LT$$RF$str$GT$$GT$2eq17h"
     }
   ]
 }
diff --git a/tests/integration/failing/std-to-string.smir.json.expected b/tests/integration/failing/std-to-string.smir.json.expected
index 460c943..eebdf33 100644
--- a/tests/integration/failing/std-to-string.smir.json.expected
+++ b/tests/integration/failing/std-to-string.smir.json.expected
@@ -1083,25 +1083,25 @@
     [
       0,
       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
       13,
       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h90dbb03933786387E"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
       14,
       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h02d1417dff5cd826E"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
       19,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h5b4cd0dacfd81eb4E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
@@ -1113,19 +1113,19 @@
     [
       21,
       {
-        "NormalSym": "_ZN52_$LT$T$u20$as$u20$alloc..slice..hack..ConvertVec$GT$6to_vec17h33b8a6e5a0a7dfc4E"
+        "NormalSym": "_ZN52_$LT$T$u20$as$u20$alloc..slice..hack..ConvertVec$GT$6to_vec17h"
       }
     ],
     [
       30,
       {
-        "NormalSym": "_ZN4core9ub_checks17is_nonoverlapping7runtime17h6c25e126a2602078E"
+        "NormalSym": "_ZN4core9ub_checks17is_nonoverlapping7runtime17h"
       }
     ],
     [
       31,
       {
-        "NormalSym": "_ZN4core9panicking14panic_nounwind17hee6445121510e179E"
+        "NormalSym": "_ZN4core9panicking14panic_nounwind17h"
       }
     ],
     [
@@ -1137,37 +1137,37 @@
     [
       33,
       {
-        "NormalSym": "_ZN4core9panicking9panic_fmt17h8510a50a874ddcc2E"
+        "NormalSym": "_ZN4core9panicking9panic_fmt17h"
       }
     ],
     [
       46,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17ha82058174da31196E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
       48,
       {
-        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h16fd98eaacdce366E"
+        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
       51,
       {
-        "NormalSym": "_ZN70_$LT$alloc..vec..Vec$LT$T$C$A$GT$$u20$as$u20$core..ops..drop..Drop$GT$4drop17ha2b06c17550c4594E"
+        "NormalSym": "_ZN70_$LT$alloc..vec..Vec$LT$T$C$A$GT$$u20$as$u20$core..ops..drop..Drop$GT$4drop17h"
       }
     ],
     [
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       {
-        "NormalSym": "_ZN77_$LT$alloc..raw_vec..RawVec$LT$T$C$A$GT$$u20$as$u20$core..ops..drop..Drop$GT$4drop17h9f21d22221a217aaE"
+        "NormalSym": "_ZN77_$LT$alloc..raw_vec..RawVec$LT$T$C$A$GT$$u20$as$u20$core..ops..drop..Drop$GT$4drop17h"
       }
     ],
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       61,
       {
-        "NormalSym": "_ZN4core3num23_$LT$impl$u20$usize$GT$13unchecked_mul18precondition_check17h147a48bdfc9cebaeE"
+        "NormalSym": "_ZN4core3num23_$LT$impl$u20$usize$GT$13unchecked_mul18precondition_check17h"
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     [
@@ -1179,31 +1179,31 @@
     [
       67,
       {
-        "NormalSym": "_ZN5alloc7raw_vec19RawVec$LT$T$C$A$GT$15try_allocate_in17hde8132f4f12532dbE"
+        "NormalSym": "_ZN5alloc7raw_vec19RawVec$LT$T$C$A$GT$15try_allocate_in17h"
       }
     ],
     [
       69,
       {
-        "NormalSym": "_ZN5alloc7raw_vec12handle_error17h9fbab9c4138a4cf5E"
+        "NormalSym": "_ZN5alloc7raw_vec12handle_error17h"
       }
     ],
     [
       73,
       {
-        "NormalSym": "_ZN4core10intrinsics19copy_nonoverlapping18precondition_check17h9f024a4c9fa2be1dE"
+        "NormalSym": "_ZN4core10intrinsics19copy_nonoverlapping18precondition_check17h"
       }
     ],
     [
       78,
       {
-        "NormalSym": "__rust_alloc"
+        "NormalSym": ""
       }
     ],
     [
       79,
       {
-        "NormalSym": "_ZN4core3ptr13read_volatile18precondition_check17h728cba60bee17784E"
+        "NormalSym": "_ZN4core3ptr13read_volatile18precondition_check17h"
       }
     ],
     [
@@ -1215,49 +1215,49 @@
     [
       82,
       {
-        "NormalSym": "__rust_alloc_zeroed"
+        "NormalSym": "__"
       }
     ],
     [
       83,
       {
-        "NormalSym": "_ZN5alloc5alloc5alloc17h0dca39f7982a9f7aE"
+        "NormalSym": "_ZN5alloc5alloc5alloc17h"
       }
     ],
     [
       84,
       {
-        "NormalSym": "_ZN4core3ptr8non_null16NonNull$LT$T$GT$13new_unchecked18precondition_check17hee0e8c7ad69a05ffE"
+        "NormalSym": "_ZN4core3ptr8non_null16NonNull$LT$T$GT$13new_unchecked18precondition_check17h"
       }
     ],
     [
       98,
       {
-        "NormalSym": "_ZN4core5alloc6layout6Layout5array5inner17h94147f78f9e43dd8E"
+        "NormalSym": "_ZN4core5alloc6layout6Layout5array5inner17h"
       }
     ],
     [
       99,
       {
-        "NormalSym": "_ZN63_$LT$alloc..alloc..Global$u20$as$u20$core..alloc..Allocator$GT$15allocate_zeroed17hd1378b6fec98ecddE"
+        "NormalSym": "_ZN63_$LT$alloc..alloc..Global$u20$as$u20$core..alloc..Allocator$GT$15allocate_zeroed17h"
       }
     ],
     [
       100,
       {
-        "NormalSym": "_ZN63_$LT$alloc..alloc..Global$u20$as$u20$core..alloc..Allocator$GT$8allocate17hc5b4e4962fb0f40dE"
+        "NormalSym": "_ZN63_$LT$alloc..alloc..Global$u20$as$u20$core..alloc..Allocator$GT$8allocate17h"
       }
     ],
     [
       102,
       {
-        "NormalSym": "__rust_dealloc"
+        "NormalSym": ""
       }
     ],
     [
       103,
       {
-        "NormalSym": "_ZN5alloc5alloc6Global10alloc_impl17h3e8e7b3e0f598119E"
+        "NormalSym": "_ZN5alloc5alloc6Global10alloc_impl17h"
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     [
@@ -1281,49 +1281,49 @@
     [
       107,
       {
-        "NormalSym": "_ZN5alloc7raw_vec19RawVec$LT$T$C$A$GT$14current_memory17hba8a41dea17e13ccE"
+        "NormalSym": "_ZN5alloc7raw_vec19RawVec$LT$T$C$A$GT$14current_memory17h"
       }
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     [
       108,
       {
-        "NormalSym": "_ZN63_$LT$alloc..alloc..Global$u20$as$u20$core..alloc..Allocator$GT$10deallocate17h92716973ef61186eE"
+        "NormalSym": "_ZN63_$LT$alloc..alloc..Global$u20$as$u20$core..alloc..Allocator$GT$10deallocate17h"
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     ],
     [
       109,
       {
-        "NormalSym": "_ZN4core5slice3raw14from_raw_parts18precondition_check17hf3a78f9699bce1d6E"
+        "NormalSym": "_ZN4core5slice3raw14from_raw_parts18precondition_check17h"
       }
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     [
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       {
-        "NormalSym": "_ZN73_$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$5equal17h812ed04340e8bc65E"
+        "NormalSym": "_ZN73_$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$5equal17h"
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     [
       116,
       {
-        "NormalSym": "_ZN47_$LT$str$u20$as$u20$alloc..string..ToString$GT$9to_string17h34ab2d3d44afb0cfE"
+        "NormalSym": "_ZN47_$LT$str$u20$as$u20$alloc..string..ToString$GT$9to_string17h"
       }
     ],
     [
       117,
       {
-        "NormalSym": "_ZN77_$LT$alloc..string..String$u20$as$u20$core..cmp..PartialEq$LT$$RF$str$GT$$GT$2eq17h9c119bf760646bc2E"
+        "NormalSym": "_ZN77_$LT$alloc..string..String$u20$as$u20$core..cmp..PartialEq$LT$$RF$str$GT$$GT$2eq17h"
       }
     ],
     [
       118,
       {
-        "NormalSym": "_ZN4core9panicking5panic17h1b078f0122adb34fE"
+        "NormalSym": "_ZN4core9panicking5panic17h"
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     [
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       {
-        "NormalSym": "_ZN4core3ptr53drop_in_place$LT$alloc..raw_vec..RawVec$LT$u8$GT$$GT$17h471900168bc51ec1E"
+        "NormalSym": "_ZN4core3ptr53drop_in_place$LT$alloc..raw_vec..RawVec$LT$u8$GT$$GT$17h"
       }
     ],
     [
@@ -1335,13 +1335,13 @@
     [
       121,
       {
-        "NormalSym": "_ZN4core3ptr46drop_in_place$LT$alloc..vec..Vec$LT$u8$GT$$GT$17h9c3d7457c17d0509E"
+        "NormalSym": "_ZN4core3ptr46drop_in_place$LT$alloc..vec..Vec$LT$u8$GT$$GT$17h"
       }
     ],
     [
       123,
       {
-        "NormalSym": "_ZN4core3ptr42drop_in_place$LT$alloc..string..String$GT$17h5579b46778b517b5E"
+        "NormalSym": "_ZN4core3ptr42drop_in_place$LT$alloc..string..String$GT$17h"
       }
     ],
     [
@@ -1878,7 +1878,7 @@
           "name": "main"
         }
       },
-      "symbol_name": "_ZN13std_to_string4main17hbc4dd8701049b509E"
+      "symbol_name": "_ZN13std_to_string4main17h"
     },
     {
       "details": null,
@@ -2250,7 +2250,7 @@
           "name": "std::rt::lang_start::<()>"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start17h5ce59742aa8ff7b2E"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
     },
     {
       "details": null,
@@ -2613,7 +2613,7 @@
           "name": "std::rt::lang_start::<()>::{closure#0}"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h16fd98eaacdce366E"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -2794,7 +2794,7 @@
           "name": "std::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>"
         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h90dbb03933786387E"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
     },
     {
       "details": null,
@@ -3146,7 +3146,7 @@
           "name": "<str as std::string::ToString>::to_string"
         }
       },
-      "symbol_name": "_ZN47_$LT$str$u20$as$u20$alloc..string..ToString$GT$9to_string17h34ab2d3d44afb0cfE"
+      "symbol_name": "_ZN47_$LT$str$u20$as$u20$alloc..string..ToString$GT$9to_string17h"
     },
     {
       "details": null,
@@ -3157,7 +3157,7 @@
           "name": "std::intrinsics::size_of_val::<[u8]>"
         }
       },
-      "symbol_name": "_ZN4core10intrinsics11size_of_val17hfbc7cf1f1af1c1e6E"
+      "symbol_name": "_ZN4core10intrinsics11size_of_val17h"
     },
     {
       "details": null,
@@ -5498,7 +5498,7 @@
           "name": "std::intrinsics::copy_nonoverlapping::precondition_check"
         }
       },
-      "symbol_name": "_ZN4core10intrinsics19copy_nonoverlapping18precondition_check17h9f024a4c9fa2be1dE"
+      "symbol_name": "_ZN4core10intrinsics19copy_nonoverlapping18precondition_check17h"
     },
     {
       "details": null,
@@ -5573,7 +5573,7 @@
           "name": "std::intrinsics::unlikely"
         }
       },
-      "symbol_name": "_ZN4core10intrinsics8unlikely17h1ce0cbb60d79001aE"
+      "symbol_name": "_ZN4core10intrinsics8unlikely17h"
     },
     {
       "details": null,
@@ -6009,7 +6009,7 @@
           "name": "core::num::<impl usize>::unchecked_mul::precondition_check"
         }
       },
-      "symbol_name": "_ZN4core3num23_$LT$impl$u20$usize$GT$13unchecked_mul18precondition_check17h147a48bdfc9cebaeE"
+      "symbol_name": "_ZN4core3num23_$LT$impl$u20$usize$GT$13unchecked_mul18precondition_check17h"
     },
     {
       "details": null,
@@ -6096,7 +6096,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h2bff7de0843201b5E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -6163,7 +6163,7 @@
           "name": "<fn() as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h5b4cd0dacfd81eb4E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -6322,7 +6322,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17ha82058174da31196E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -7430,7 +7430,7 @@
           "name": "std::ptr::read_volatile::precondition_check"
         }
       },
-      "symbol_name": "_ZN4core3ptr13read_volatile18precondition_check17h728cba60bee17784E"
+      "symbol_name": "_ZN4core3ptr13read_volatile18precondition_check17h"
     },
     {
       "details": null,
@@ -7493,7 +7493,7 @@
           "name": "std::ptr::drop_in_place::<std::string::String>"
         }
       },
-      "symbol_name": "_ZN4core3ptr42drop_in_place$LT$alloc..string..String$GT$17h5579b46778b517b5E"
+      "symbol_name": "_ZN4core3ptr42drop_in_place$LT$alloc..string..String$GT$17h"
     },
     {
       "details": null,
@@ -7664,7 +7664,7 @@
           "name": "std::ptr::drop_in_place::<std::vec::Vec<u8>>"
         }
       },
-      "symbol_name": "_ZN4core3ptr46drop_in_place$LT$alloc..vec..Vec$LT$u8$GT$$GT$17h9c3d7457c17d0509E"
+      "symbol_name": "_ZN4core3ptr46drop_in_place$LT$alloc..vec..Vec$LT$u8$GT$$GT$17h"
     },
     {
       "details": null,
@@ -7778,7 +7778,7 @@
           "name": "std::ptr::drop_in_place::<alloc::raw_vec::RawVec<u8>>"
         }
       },
-      "symbol_name": "_ZN4core3ptr53drop_in_place$LT$alloc..raw_vec..RawVec$LT$u8$GT$$GT$17h471900168bc51ec1E"
+      "symbol_name": "_ZN4core3ptr53drop_in_place$LT$alloc..raw_vec..RawVec$LT$u8$GT$$GT$17h"
     },
     {
       "details": null,
@@ -7817,7 +7817,7 @@
           "name": "std::ptr::drop_in_place::<{closure@std::rt::lang_start<()>::{closure#0}}>"
         }
       },
-      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17hd383971480c11f2aE"
+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
     },
     {
       "details": null,
@@ -8122,7 +8122,7 @@
           "name": "std::ptr::NonNull::<T>::new_unchecked::precondition_check"
         }
       },
-      "symbol_name": "_ZN4core3ptr8non_null16NonNull$LT$T$GT$13new_unchecked18precondition_check17hee0e8c7ad69a05ffE"
+      "symbol_name": "_ZN4core3ptr8non_null16NonNull$LT$T$GT$13new_unchecked18precondition_check17h"
     },
     {
       "details": null,
@@ -9706,7 +9706,7 @@
           "name": "std::alloc::Layout::array::inner"
         }
       },
-      "symbol_name": "_ZN4core5alloc6layout6Layout5array5inner17h94147f78f9e43dd8E"
+      "symbol_name": "_ZN4core5alloc6layout6Layout5array5inner17h"
     },
     {
       "details": null,
@@ -11353,7 +11353,7 @@
           "name": "std::slice::from_raw_parts::precondition_check"
         }
       },
-      "symbol_name": "_ZN4core5slice3raw14from_raw_parts18precondition_check17hf3a78f9699bce1d6E"
+      "symbol_name": "_ZN4core5slice3raw14from_raw_parts18precondition_check17h"
     },
     {
       "details": null,
@@ -12655,7 +12655,7 @@
           "name": "core::ub_checks::is_nonoverlapping::runtime"
         }
       },
-      "symbol_name": "_ZN4core9ub_checks17is_nonoverlapping7runtime17h6c25e126a2602078E"
+      "symbol_name": "_ZN4core9ub_checks17is_nonoverlapping7runtime17h"
     },
     {
       "details": null,
@@ -14200,7 +14200,7 @@
           "name": "<u8 as std::slice::hack::ConvertVec>::to_vec::<std::alloc::Global>"
         }
       },
-      "symbol_name": "_ZN52_$LT$T$u20$as$u20$alloc..slice..hack..ConvertVec$GT$6to_vec17h33b8a6e5a0a7dfc4E"
+      "symbol_name": "_ZN52_$LT$T$u20$as$u20$alloc..slice..hack..ConvertVec$GT$6to_vec17h"
     },
     {
       "details": null,
@@ -14296,7 +14296,7 @@
           "name": "<() as std::process::Termination>::report"
         }
       },
-      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h02d1417dff5cd826E"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
     },
     {
       "details": null,
@@ -15250,7 +15250,7 @@
           "name": "std::alloc::alloc"
         }
       },
-      "symbol_name": "_ZN5alloc5alloc5alloc17h0dca39f7982a9f7aE"
+      "symbol_name": "_ZN5alloc5alloc5alloc17h"
     },
     {
       "details": null,
@@ -19276,7 +19276,7 @@
           "name": "std::alloc::Global::alloc_impl"
         }
       },
-      "symbol_name": "_ZN5alloc5alloc6Global10alloc_impl17h3e8e7b3e0f598119E"
+      "symbol_name": "_ZN5alloc5alloc6Global10alloc_impl17h"
     },
     {
       "details": null,
@@ -20507,7 +20507,7 @@
           "name": "alloc::raw_vec::RawVec::<u8>::current_memory"
         }
       },
-      "symbol_name": "_ZN5alloc7raw_vec19RawVec$LT$T$C$A$GT$14current_memory17hba8a41dea17e13ccE"
+      "symbol_name": "_ZN5alloc7raw_vec19RawVec$LT$T$C$A$GT$14current_memory17h"
     },
     {
       "details": null,
@@ -23179,7 +23179,7 @@
           "name": "alloc::raw_vec::RawVec::<u8>::try_allocate_in"
         }
       },
-      "symbol_name": "_ZN5alloc7raw_vec19RawVec$LT$T$C$A$GT$15try_allocate_in17hde8132f4f12532dbE"
+      "symbol_name": "_ZN5alloc7raw_vec19RawVec$LT$T$C$A$GT$15try_allocate_in17h"
     },
     {
       "details": null,
@@ -24089,7 +24089,7 @@
           "name": "<std::alloc::Global as std::alloc::Allocator>::deallocate"
         }
       },
-      "symbol_name": "_ZN63_$LT$alloc..alloc..Global$u20$as$u20$core..alloc..Allocator$GT$10deallocate17h92716973ef61186eE"
+      "symbol_name": "_ZN63_$LT$alloc..alloc..Global$u20$as$u20$core..alloc..Allocator$GT$10deallocate17h"
     },
     {
       "details": null,
@@ -24227,7 +24227,7 @@
           "name": "<std::alloc::Global as std::alloc::Allocator>::allocate_zeroed"
         }
       },
-      "symbol_name": "_ZN63_$LT$alloc..alloc..Global$u20$as$u20$core..alloc..Allocator$GT$15allocate_zeroed17hd1378b6fec98ecddE"
+      "symbol_name": "_ZN63_$LT$alloc..alloc..Global$u20$as$u20$core..alloc..Allocator$GT$15allocate_zeroed17h"
     },
     {
       "details": null,
@@ -24365,7 +24365,7 @@
           "name": "<std::alloc::Global as std::alloc::Allocator>::allocate"
         }
       },
-      "symbol_name": "_ZN63_$LT$alloc..alloc..Global$u20$as$u20$core..alloc..Allocator$GT$8allocate17hc5b4e4962fb0f40dE"
+      "symbol_name": "_ZN63_$LT$alloc..alloc..Global$u20$as$u20$core..alloc..Allocator$GT$8allocate17h"
     },
     {
       "details": null,
@@ -24900,7 +24900,7 @@
           "name": "<std::vec::Vec<u8> as std::ops::Drop>::drop"
         }
       },
-      "symbol_name": "_ZN70_$LT$alloc..vec..Vec$LT$T$C$A$GT$$u20$as$u20$core..ops..drop..Drop$GT$4drop17ha2b06c17550c4594E"
+      "symbol_name": "_ZN70_$LT$alloc..vec..Vec$LT$T$C$A$GT$$u20$as$u20$core..ops..drop..Drop$GT$4drop17h"
     },
     {
       "details": null,
@@ -25587,7 +25587,7 @@
           "name": "<[u8] as core::slice::cmp::SlicePartialEq<u8>>::equal"
         }
       },
-      "symbol_name": "_ZN73_$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$5equal17h812ed04340e8bc65E"
+      "symbol_name": "_ZN73_$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$5equal17h"
     },
     {
       "details": null,
@@ -26015,7 +26015,7 @@
           "name": "<alloc::raw_vec::RawVec<u8> as std::ops::Drop>::drop"
         }
       },
-      "symbol_name": "_ZN77_$LT$alloc..raw_vec..RawVec$LT$T$C$A$GT$$u20$as$u20$core..ops..drop..Drop$GT$4drop17h9f21d22221a217aaE"
+      "symbol_name": "_ZN77_$LT$alloc..raw_vec..RawVec$LT$T$C$A$GT$$u20$as$u20$core..ops..drop..Drop$GT$4drop17h"
     },
     {
       "details": null,
@@ -27425,7 +27425,7 @@
           "name": "<std::string::String as std::cmp::PartialEq<&str>>::eq"
         }
       },
-      "symbol_name": "_ZN77_$LT$alloc..string..String$u20$as$u20$core..cmp..PartialEq$LT$$RF$str$GT$$GT$2eq17h9c119bf760646bc2E"
+      "symbol_name": "_ZN77_$LT$alloc..string..String$u20$as$u20$core..cmp..PartialEq$LT$$RF$str$GT$$GT$2eq17h"
     }
   ]
 }
diff --git a/tests/integration/failing/str-empty.smir.json.expected b/tests/integration/failing/str-empty.smir.json.expected
index bcf70bb..f52ac01 100644
--- a/tests/integration/failing/str-empty.smir.json.expected
+++ b/tests/integration/failing/str-empty.smir.json.expected
@@ -118,25 +118,25 @@
     [
       0,
       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
       13,
       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h544ca298fd981893E"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
       14,
       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h4e60a16e561622f8E"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
       19,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h2df40009830159bbE"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
@@ -148,25 +148,25 @@
     [
       21,
       {
-        "NormalSym": "_ZN4core3str6traits54_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$str$GT$2eq17h7ebea87933a96534E"
+        "NormalSym": "_ZN4core3str6traits54_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$str$GT$2eq17h"
       }
     ],
     [
       25,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h69cf50aaff9f5c63E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
       27,
       {
-        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h8a7a569958061d49E"
+        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
       29,
       {
-        "NormalSym": "_ZN73_$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$5equal17h29105622a154f963E"
+        "NormalSym": "_ZN73_$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$5equal17h"
       }
     ],
     [
@@ -184,13 +184,13 @@
     [
       37,
       {
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+        "NormalSym": "_ZN4core3cmp5impls69_$LT$impl$u20$core..cmp..PartialEq$LT$$RF$B$GT$$u20$for$u20$$RF$A$GT$2eq17h"
       }
     ],
     [
       38,
       {
-        "NormalSym": "_ZN4core9panicking5panic17h1b078f0122adb34fE"
+        "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
@@ -571,7 +571,7 @@
           "name": "std::rt::lang_start::<()>"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start17h5d645f8826581ab5E"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
     },
     {
       "details": null,
@@ -934,7 +934,7 @@
           "name": "std::rt::lang_start::<()>::{closure#0}"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h8a7a569958061d49E"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -1115,7 +1115,7 @@
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         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h544ca298fd981893E"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
     },
     {
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@@ -1126,7 +1126,7 @@
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         }
       },
-      "symbol_name": "_ZN4core10intrinsics11size_of_val17h0266a439570c5ebeE"
+      "symbol_name": "_ZN4core10intrinsics11size_of_val17h"
     },
     {
       "details": null,
@@ -1295,7 +1295,7 @@
           "name": "std::cmp::impls::<impl std::cmp::PartialEq for &str>::eq"
         }
       },
-      "symbol_name": "_ZN4core3cmp5impls69_$LT$impl$u20$core..cmp..PartialEq$LT$$RF$B$GT$$u20$for$u20$$RF$A$GT$2eq17he0d203be58d060afE"
+      "symbol_name": "_ZN4core3cmp5impls69_$LT$impl$u20$core..cmp..PartialEq$LT$$RF$B$GT$$u20$for$u20$$RF$A$GT$2eq17h"
     },
     {
       "details": null,
@@ -1382,7 +1382,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h182d0d446cc06b0eE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
     {
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@@ -1449,7 +1449,7 @@
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         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h2df40009830159bbE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -1608,7 +1608,7 @@
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         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h69cf50aaff9f5c63E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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     {
       "details": null,
@@ -1647,7 +1647,7 @@
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         }
       },
-      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h8b98d3f8513266f6E"
+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
     },
     {
       "details": null,
@@ -1991,7 +1991,7 @@
           "name": "core::str::traits::<impl std::cmp::PartialEq for str>::eq"
         }
       },
-      "symbol_name": "_ZN4core3str6traits54_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$str$GT$2eq17h7ebea87933a96534E"
+      "symbol_name": "_ZN4core3str6traits54_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$str$GT$2eq17h"
     },
     {
       "details": null,
@@ -2087,7 +2087,7 @@
           "name": "<() as std::process::Termination>::report"
         }
       },
-      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h4e60a16e561622f8E"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
     },
     {
       "details": null,
@@ -2774,7 +2774,7 @@
           "name": "<[u8] as core::slice::cmp::SlicePartialEq<u8>>::equal"
         }
       },
-      "symbol_name": "_ZN73_$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$5equal17h29105622a154f963E"
+      "symbol_name": "_ZN73_$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$5equal17h"
     },
     {
       "details": null,
@@ -3218,7 +3218,7 @@
           "name": "main"
         }
       },
-      "symbol_name": "_ZN9str_empty4main17hf8e3421947f62c31E"
+      "symbol_name": "_ZN9str_empty4main17h"
     }
   ]
 }
diff --git a/tests/integration/failing/str-trivial.smir.json.expected b/tests/integration/failing/str-trivial.smir.json.expected
index 2110277..8b2631a 100644
--- a/tests/integration/failing/str-trivial.smir.json.expected
+++ b/tests/integration/failing/str-trivial.smir.json.expected
@@ -125,25 +125,25 @@
     [
       0,
       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
       13,
       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17heb0630f5a0cd5086E"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
       14,
       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h2d18d5a9e8fb95abE"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
       19,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17hca1f8df10907907fE"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
@@ -155,25 +155,25 @@
     [
       21,
       {
-        "NormalSym": "_ZN4core3str6traits54_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$str$GT$2eq17hc7a6bff4c06f14a6E"
+        "NormalSym": "_ZN4core3str6traits54_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$str$GT$2eq17h"
       }
     ],
     [
       25,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h17ebc11c61414b3aE"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
       27,
       {
-        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h8cce9b152dc9cb99E"
+        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
       29,
       {
-        "NormalSym": "_ZN73_$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$5equal17h5e8e428385f25c8bE"
+        "NormalSym": "_ZN73_$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$5equal17h"
       }
     ],
     [
@@ -191,13 +191,13 @@
     [
       37,
       {
-        "NormalSym": "_ZN4core3cmp5impls69_$LT$impl$u20$core..cmp..PartialEq$LT$$RF$B$GT$$u20$for$u20$$RF$A$GT$2eq17h6c4717c569400301E"
+        "NormalSym": "_ZN4core3cmp5impls69_$LT$impl$u20$core..cmp..PartialEq$LT$$RF$B$GT$$u20$for$u20$$RF$A$GT$2eq17h"
       }
     ],
     [
       38,
       {
-        "NormalSym": "_ZN4core9panicking5panic17h1b078f0122adb34fE"
+        "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
@@ -650,7 +650,7 @@
           "name": "main"
         }
       },
-      "symbol_name": "_ZN11str_trivial4main17hd1f2bc6fabc04c2dE"
+      "symbol_name": "_ZN11str_trivial4main17h"
     },
     {
       "details": null,
@@ -1022,7 +1022,7 @@
           "name": "std::rt::lang_start::<()>"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start17h28916d16c5f1dccaE"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
     },
     {
       "details": null,
@@ -1385,7 +1385,7 @@
           "name": "std::rt::lang_start::<()>::{closure#0}"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h8cce9b152dc9cb99E"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -1566,7 +1566,7 @@
           "name": "std::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>"
         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17heb0630f5a0cd5086E"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
     },
     {
       "details": null,
@@ -1577,7 +1577,7 @@
           "name": "std::intrinsics::size_of_val::<[u8]>"
         }
       },
-      "symbol_name": "_ZN4core10intrinsics11size_of_val17hcf585b6f6289e086E"
+      "symbol_name": "_ZN4core10intrinsics11size_of_val17h"
     },
     {
       "details": null,
@@ -1746,7 +1746,7 @@
           "name": "std::cmp::impls::<impl std::cmp::PartialEq for &str>::eq"
         }
       },
-      "symbol_name": "_ZN4core3cmp5impls69_$LT$impl$u20$core..cmp..PartialEq$LT$$RF$B$GT$$u20$for$u20$$RF$A$GT$2eq17h6c4717c569400301E"
+      "symbol_name": "_ZN4core3cmp5impls69_$LT$impl$u20$core..cmp..PartialEq$LT$$RF$B$GT$$u20$for$u20$$RF$A$GT$2eq17h"
     },
     {
       "details": null,
@@ -1833,7 +1833,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h21fff4c9e2eedc00E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -1992,7 +1992,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h17ebc11c61414b3aE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -2059,7 +2059,7 @@
           "name": "<fn() as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17hca1f8df10907907fE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -2098,7 +2098,7 @@
           "name": "std::ptr::drop_in_place::<{closure@std::rt::lang_start<()>::{closure#0}}>"
         }
       },
-      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h9a2a29885f89000bE"
+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
     },
     {
       "details": null,
@@ -2442,7 +2442,7 @@
           "name": "core::str::traits::<impl std::cmp::PartialEq for str>::eq"
         }
       },
-      "symbol_name": "_ZN4core3str6traits54_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$str$GT$2eq17hc7a6bff4c06f14a6E"
+      "symbol_name": "_ZN4core3str6traits54_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$str$GT$2eq17h"
     },
     {
       "details": null,
@@ -2538,7 +2538,7 @@
           "name": "<() as std::process::Termination>::report"
         }
       },
-      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h2d18d5a9e8fb95abE"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
     },
     {
       "details": null,
@@ -3225,7 +3225,7 @@
           "name": "<[u8] as core::slice::cmp::SlicePartialEq<u8>>::equal"
         }
       },
-      "symbol_name": "_ZN73_$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$5equal17h5e8e428385f25c8bE"
+      "symbol_name": "_ZN73_$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$5equal17h"
     }
   ]
 }
diff --git a/tests/integration/normalise-filter.jq b/tests/integration/normalise-filter.jq
index 23c7e97..5b63a49 100644
--- a/tests/integration/normalise-filter.jq
+++ b/tests/integration/normalise-filter.jq
@@ -1,3 +1,8 @@
+# Remove the hashes at the end of mangled names
+.functions = ( [ .functions[] | if .[1].NormalSym then .[1].NormalSym = .[1].NormalSym[:-17] else .  end ] )
+    | .items = ( [ .items[] | if .symbol_name then .symbol_name = .symbol_name[:-17] else .  end ] )
+    |
+# Apply the normalisation filter
 { allocs:
     ( [ .allocs[] ]
 # sort allocs by their ID
diff --git a/tests/integration/programs/assert_eq.smir.json.expected b/tests/integration/programs/assert_eq.smir.json.expected
index 797bfaf..6e0f6db 100644
--- a/tests/integration/programs/assert_eq.smir.json.expected
+++ b/tests/integration/programs/assert_eq.smir.json.expected
@@ -4,25 +4,25 @@
     [
       0,
       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
       13,
       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17he770fc9c7f092400E"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
       14,
       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17hb06ebd36cf1fd65bE"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
       19,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h50b93c5bd94e40a8E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
@@ -34,49 +34,49 @@
     [
       21,
       {
-        "NormalSym": "_ZN4core3fmt3num50_$LT$impl$u20$core..fmt..Debug$u20$for$u20$i32$GT$3fmt17h57285fb3ede9d01cE"
+        "NormalSym": "_ZN4core3fmt3num50_$LT$impl$u20$core..fmt..Debug$u20$for$u20$i32$GT$3fmt17h"
       }
     ],
     [
       27,
       {
-        "NormalSym": "_ZN4core3fmt3num53_$LT$impl$u20$core..fmt..LowerHex$u20$for$u20$i32$GT$3fmt17h4a52d95dc4574769E"
+        "NormalSym": "_ZN4core3fmt3num53_$LT$impl$u20$core..fmt..LowerHex$u20$for$u20$i32$GT$3fmt17h"
       }
     ],
     [
       28,
       {
-        "NormalSym": "_ZN4core3fmt3num53_$LT$impl$u20$core..fmt..UpperHex$u20$for$u20$i32$GT$3fmt17hb461f3a25df6a443E"
+        "NormalSym": "_ZN4core3fmt3num53_$LT$impl$u20$core..fmt..UpperHex$u20$for$u20$i32$GT$3fmt17h"
       }
     ],
     [
       29,
       {
-        "NormalSym": "_ZN4core3fmt3num3imp52_$LT$impl$u20$core..fmt..Display$u20$for$u20$i32$GT$3fmt17h2f0986d8bc27bf03E"
+        "NormalSym": "_ZN4core3fmt3num3imp52_$LT$impl$u20$core..fmt..Display$u20$for$u20$i32$GT$3fmt17h"
       }
     ],
     [
       30,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17hd98db8d17b807164E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
       32,
       {
-        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17he87762546545c380E"
+        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
       35,
       {
-        "NormalSym": "_ZN4core9panicking19assert_failed_inner17hae701ec8e1e0c738E"
+        "NormalSym": "_ZN4core9panicking19assert_failed_inner17h"
       }
     ],
     [
       41,
       {
-        "NormalSym": "_ZN4core9panicking13assert_failed17ha615b8109eb1d24eE"
+        "NormalSym": "_ZN4core9panicking13assert_failed17h"
       }
     ],
     [
@@ -457,7 +457,7 @@
           "name": "std::rt::lang_start::<()>"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start17hb9da34cecb7084feE"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
     },
     {
       "details": null,
@@ -820,7 +820,7 @@
           "name": "std::rt::lang_start::<()>::{closure#0}"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17he87762546545c380E"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -1001,7 +1001,7 @@
           "name": "std::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>"
         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17he770fc9c7f092400E"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
     },
     {
       "details": null,
@@ -1144,7 +1144,7 @@
           "name": "<&i32 as std::fmt::Debug>::fmt"
         }
       },
-      "symbol_name": "_ZN42_$LT$$RF$T$u20$as$u20$core..fmt..Debug$GT$3fmt17h83cea7bad7f3b5edE"
+      "symbol_name": "_ZN42_$LT$$RF$T$u20$as$u20$core..fmt..Debug$GT$3fmt17h"
     },
     {
       "details": null,
@@ -1666,7 +1666,7 @@
           "name": "core::fmt::num::<impl std::fmt::Debug for i32>::fmt"
         }
       },
-      "symbol_name": "_ZN4core3fmt3num50_$LT$impl$u20$core..fmt..Debug$u20$for$u20$i32$GT$3fmt17h57285fb3ede9d01cE"
+      "symbol_name": "_ZN4core3fmt3num50_$LT$impl$u20$core..fmt..Debug$u20$for$u20$i32$GT$3fmt17h"
     },
     {
       "details": null,
@@ -1753,7 +1753,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h4862a9441681ed9cE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -1820,7 +1820,7 @@
           "name": "<fn() as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h50b93c5bd94e40a8E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -1979,7 +1979,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17hd98db8d17b807164E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -2018,7 +2018,7 @@
           "name": "std::ptr::drop_in_place::<&i32>"
         }
       },
-      "symbol_name": "_ZN4core3ptr28drop_in_place$LT$$RF$i32$GT$17h9641d331670bb7b5E"
+      "symbol_name": "_ZN4core3ptr28drop_in_place$LT$$RF$i32$GT$17h"
     },
     {
       "details": null,
@@ -2057,7 +2057,7 @@
           "name": "std::ptr::drop_in_place::<{closure@std::rt::lang_start<()>::{closure#0}}>"
         }
       },
-      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h4c42ad109c7592a3E"
+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
     },
     {
       "details": null,
@@ -2371,7 +2371,7 @@
           "name": "core::panicking::assert_failed::<i32, i32>"
         }
       },
-      "symbol_name": "_ZN4core9panicking13assert_failed17ha615b8109eb1d24eE"
+      "symbol_name": "_ZN4core9panicking13assert_failed17h"
     },
     {
       "details": null,
@@ -2467,7 +2467,7 @@
           "name": "<() as std::process::Termination>::report"
         }
       },
-      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17hb06ebd36cf1fd65bE"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
     },
     {
       "details": null,
@@ -3191,7 +3191,7 @@
           "name": "main"
         }
       },
-      "symbol_name": "_ZN9assert_eq4main17hfc966d14489c115fE"
+      "symbol_name": "_ZN9assert_eq4main17h"
     }
   ]
 }
diff --git a/tests/integration/programs/binop.smir.json.expected b/tests/integration/programs/binop.smir.json.expected
index 24f52d9..0578aac 100644
--- a/tests/integration/programs/binop.smir.json.expected
+++ b/tests/integration/programs/binop.smir.json.expected
@@ -1134,25 +1134,25 @@
     [
       0,
       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
       13,
       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17he90aea535f4496f4E"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
       14,
       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h08eb118021a1dc92E"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
       19,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h58504e9a040c9e4dE"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
@@ -1164,25 +1164,25 @@
     [
       21,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17ha3ed128d842dfdf1E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
       23,
       {
-        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h51ad69fdc370efa6E"
+        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
       26,
       {
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-        "NormalSym": "_ZN5binop10test_binop17hbeddbf9d499fdbe1E"
+        "NormalSym": "_ZN5binop10test_binop17h"
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-      "symbol_name": "_ZN3std2rt10lang_start17h3ba479a87575e77fE"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
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-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h51ad69fdc370efa6E"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
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-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17he90aea535f4496f4E"
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-      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h667ae919e9ab5bfcE"
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-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h58504e9a040c9e4dE"
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@@ -2459,7 +2459,7 @@
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+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
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@@ -9776,7 +9776,7 @@
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-      "symbol_name": "_ZN5binop4main17h1be5589900968ba9E"
+      "symbol_name": "_ZN5binop4main17h"
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diff --git a/tests/integration/programs/char-trivial.smir.json.expected b/tests/integration/programs/char-trivial.smir.json.expected
index a00d517..99f842f 100644
--- a/tests/integration/programs/char-trivial.smir.json.expected
+++ b/tests/integration/programs/char-trivial.smir.json.expected
@@ -45,25 +45,25 @@
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-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
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-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17hc064bca5f164541bE"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
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-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h2404160337e74b25E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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@@ -75,19 +75,19 @@
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-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h732125ae762d93e6E"
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@@ -310,7 +310,7 @@
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       },
-      "symbol_name": "_ZN12char_trivial4main17hdcdcf88dcae9eb46E"
+      "symbol_name": "_ZN12char_trivial4main17h"
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+      "symbol_name": "_ZN3std2rt10lang_start17h"
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+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
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-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17ha21018ad4175866eE"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
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@@ -1313,7 +1313,7 @@
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-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h2404160337e74b25E"
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-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h732125ae762d93e6E"
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@@ -1578,7 +1578,7 @@
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 }
diff --git a/tests/integration/programs/closure-args.smir.json.expected b/tests/integration/programs/closure-args.smir.json.expected
index 40a9634..ae85db5 100644
--- a/tests/integration/programs/closure-args.smir.json.expected
+++ b/tests/integration/programs/closure-args.smir.json.expected
@@ -54,25 +54,25 @@
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-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17hbf176849a7ced595E"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
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-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17hc3597144c5271f28E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h0009d64ea9f5d8a8E"
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-        "NormalSym": "_ZN12closure_args4main28_$u7b$$u7b$closure$u7d$$u7d$17h4010b117563766bdE"
+        "NormalSym": "_ZN12closure_args4main28_$u7b$$u7b$closure$u7d$$u7d$17h"
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       {
-        "NormalSym": "_ZN4core9panicking5panic17h1b078f0122adb34fE"
+        "NormalSym": "_ZN4core9panicking5panic17h"
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@@ -420,7 +420,7 @@
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       },
-      "symbol_name": "_ZN12closure_args4main17h2ed782b20238718aE"
+      "symbol_name": "_ZN12closure_args4main17h"
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@@ -604,7 +604,7 @@
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         }
       },
-      "symbol_name": "_ZN12closure_args4main28_$u7b$$u7b$closure$u7d$$u7d$17h4010b117563766bdE"
+      "symbol_name": "_ZN12closure_args4main28_$u7b$$u7b$closure$u7d$$u7d$17h"
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       },
-      "symbol_name": "_ZN3std2rt10lang_start17hec1fa9e4031ba742E"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
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         }
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-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17hef0fcd067a31abd9E"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
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@@ -1520,7 +1520,7 @@
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         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h0ea9521db3c84ccdE"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
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@@ -1607,7 +1607,7 @@
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@@ -1766,7 +1766,7 @@
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+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17hc3597144c5271f28E"
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@@ -1872,7 +1872,7 @@
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+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
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@@ -1968,7 +1968,7 @@
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 }
diff --git a/tests/integration/programs/closure-no-args.smir.json.expected b/tests/integration/programs/closure-no-args.smir.json.expected
index 55221cd..b8729ad 100644
--- a/tests/integration/programs/closure-no-args.smir.json.expected
+++ b/tests/integration/programs/closure-no-args.smir.json.expected
@@ -48,25 +48,25 @@
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@@ -1653,7 +1653,7 @@
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@@ -1692,7 +1692,7 @@
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+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
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       },
-      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17haad8effff40ac51aE"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
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 }
diff --git a/tests/integration/programs/const-arithm-simple.smir.json.expected b/tests/integration/programs/const-arithm-simple.smir.json.expected
index 42c6b3b..2198947 100644
--- a/tests/integration/programs/const-arithm-simple.smir.json.expected
+++ b/tests/integration/programs/const-arithm-simple.smir.json.expected
@@ -38,25 +38,25 @@
     [
       0,
       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
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-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17hc220dca5a4a9c4e1E"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
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       14,
       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17hec1278d0bf08a55dE"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
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-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h62435ed81bec6ce7E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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@@ -68,25 +68,25 @@
     [
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       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17hdf7b2551e2c886aeE"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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       {
-        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h5e3c15d89ae15f10E"
+        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
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     [
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       {
-        "NormalSym": "_ZN19const_arithm_simple4test17h318cf5494f7e845bE"
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       {
-        "NormalSym": "_ZN4core9panicking5panic17h1b078f0122adb34fE"
+        "NormalSym": "_ZN4core9panicking5panic17h"
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@@ -463,7 +463,7 @@
           "name": "main"
         }
       },
-      "symbol_name": "_ZN19const_arithm_simple4main17h7887b9190a80d762E"
+      "symbol_name": "_ZN19const_arithm_simple4main17h"
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@@ -567,7 +567,7 @@
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         }
       },
-      "symbol_name": "_ZN19const_arithm_simple4test17h318cf5494f7e845bE"
+      "symbol_name": "_ZN19const_arithm_simple4test17h"
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@@ -939,7 +939,7 @@
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         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start17hf4b87f91a0e3d576E"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
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       },
-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h5e3c15d89ae15f10E"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
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     {
       "details": null,
@@ -1483,7 +1483,7 @@
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         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17hc220dca5a4a9c4e1E"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
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@@ -1570,7 +1570,7 @@
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-      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17ha9f8925cafcca3adE"
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     {
       "details": null,
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         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h62435ed81bec6ce7E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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       "details": null,
@@ -1796,7 +1796,7 @@
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         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17hdf7b2551e2c886aeE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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     {
       "details": null,
@@ -1835,7 +1835,7 @@
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+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
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@@ -1931,7 +1931,7 @@
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         }
       },
-      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17hec1278d0bf08a55dE"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
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 }
diff --git a/tests/integration/programs/div.smir.json.expected b/tests/integration/programs/div.smir.json.expected
index 8e0d0c1..3ad61cc 100644
--- a/tests/integration/programs/div.smir.json.expected
+++ b/tests/integration/programs/div.smir.json.expected
@@ -51,25 +51,25 @@
     [
       0,
       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
       13,
       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h64d1191ef34b9bc1E"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
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     [
       14,
       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h7ed9fb0895a27f30E"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
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     [
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       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17hea7b7593e501aefeE"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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@@ -81,19 +81,19 @@
     [
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       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17hfade6072976a28f6E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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       23,
       {
-        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h2993c2a6790fca01E"
+        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
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     [
       25,
       {
-        "NormalSym": "_ZN4core9panicking5panic17h1b078f0122adb34fE"
+        "NormalSym": "_ZN4core9panicking5panic17h"
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     [
@@ -677,7 +677,7 @@
           "name": "main"
         }
       },
-      "symbol_name": "_ZN3div4main17h71fa6a28c244cb1fE"
+      "symbol_name": "_ZN3div4main17h"
     },
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       "details": null,
@@ -1049,7 +1049,7 @@
           "name": "std::rt::lang_start::<()>"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start17hcf20de394f35ad5dE"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
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@@ -1412,7 +1412,7 @@
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         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h2993c2a6790fca01E"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
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     {
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@@ -1593,7 +1593,7 @@
           "name": "std::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>"
         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h64d1191ef34b9bc1E"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
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       "details": null,
@@ -1680,7 +1680,7 @@
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       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17he954194b4fcd00bfE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
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     {
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         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17hea7b7593e501aefeE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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@@ -1906,7 +1906,7 @@
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         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17hfade6072976a28f6E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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     {
       "details": null,
@@ -1945,7 +1945,7 @@
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       },
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+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
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@@ -2041,7 +2041,7 @@
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         }
       },
-      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h7ed9fb0895a27f30E"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
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 }
diff --git a/tests/integration/programs/double-ref-deref.smir.json.expected b/tests/integration/programs/double-ref-deref.smir.json.expected
index 7d19cc6..f05ac0e 100644
--- a/tests/integration/programs/double-ref-deref.smir.json.expected
+++ b/tests/integration/programs/double-ref-deref.smir.json.expected
@@ -46,25 +46,25 @@
     [
       0,
       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
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     ],
     [
       13,
       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17hf9d0cc1c3b14cd54E"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
       14,
       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h984a68eef244fa6eE"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
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     [
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       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h537e81d3d052cbb1E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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     [
@@ -76,19 +76,19 @@
     [
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       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17hc6f736f3375605e4E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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     [
       23,
       {
-        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h4832dffd1cd541dcE"
+        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
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     [
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       {
-        "NormalSym": "_ZN4core9panicking5panic17h1b078f0122adb34fE"
+        "NormalSym": "_ZN4core9panicking5panic17h"
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     ],
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@@ -428,7 +428,7 @@
           "name": "main"
         }
       },
-      "symbol_name": "_ZN16double_ref_deref4main17h91fba97ff36c5fccE"
+      "symbol_name": "_ZN16double_ref_deref4main17h"
     },
     {
       "details": null,
@@ -800,7 +800,7 @@
           "name": "std::rt::lang_start::<()>"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start17h7879595fd7fe0ffbE"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
     },
     {
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@@ -1163,7 +1163,7 @@
           "name": "std::rt::lang_start::<()>::{closure#0}"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h4832dffd1cd541dcE"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -1344,7 +1344,7 @@
           "name": "std::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>"
         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17hf9d0cc1c3b14cd54E"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
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     {
       "details": null,
@@ -1431,7 +1431,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h4d5385b298460ae7E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
     {
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         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h537e81d3d052cbb1E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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     {
       "details": null,
@@ -1657,7 +1657,7 @@
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         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17hc6f736f3375605e4E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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@@ -1696,7 +1696,7 @@
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+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
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@@ -1792,7 +1792,7 @@
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         }
       },
-      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h984a68eef244fa6eE"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
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 }
diff --git a/tests/integration/programs/enum.smir.json.expected b/tests/integration/programs/enum.smir.json.expected
index c3163ed..a13dfed 100644
--- a/tests/integration/programs/enum.smir.json.expected
+++ b/tests/integration/programs/enum.smir.json.expected
@@ -4,25 +4,25 @@
     [
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       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
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       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17he982f1804e60d9caE"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
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       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h8d0dab3da83a2eb4E"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
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       {
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+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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@@ -34,13 +34,13 @@
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       {
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+      "symbol_name": "_ZN3std2rt10lang_start17h"
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+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
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     {
       "details": null,
@@ -965,7 +965,7 @@
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         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17he982f1804e60d9caE"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
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@@ -1052,7 +1052,7 @@
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diff --git a/tests/integration/programs/fibonacci.smir.json.expected b/tests/integration/programs/fibonacci.smir.json.expected
index da7e5b8..9bcc8c1 100644
--- a/tests/integration/programs/fibonacci.smir.json.expected
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@@ -45,25 +45,25 @@
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diff --git a/tests/integration/programs/float.smir.json.expected b/tests/integration/programs/float.smir.json.expected
index da5414b..778917c 100644
--- a/tests/integration/programs/float.smir.json.expected
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@@ -93,25 +93,25 @@
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diff --git a/tests/integration/programs/modulo.smir.json.expected b/tests/integration/programs/modulo.smir.json.expected
index 7d300dd..c3c5441 100644
--- a/tests/integration/programs/modulo.smir.json.expected
+++ b/tests/integration/programs/modulo.smir.json.expected
@@ -49,25 +49,25 @@
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+      "symbol_name": "_ZN3std2rt10lang_start17h"
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@@ -2039,7 +2039,7 @@
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+      "symbol_name": "_ZN6modulo4main17h"
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 }
diff --git a/tests/integration/programs/mutual_recursion.smir.json.expected b/tests/integration/programs/mutual_recursion.smir.json.expected
index 29c46dc..d142f6b 100644
--- a/tests/integration/programs/mutual_recursion.smir.json.expected
+++ b/tests/integration/programs/mutual_recursion.smir.json.expected
@@ -48,25 +48,25 @@
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diff --git a/tests/integration/programs/option-construction.smir.json.expected b/tests/integration/programs/option-construction.smir.json.expected
index cc900e0..25a95ae 100644
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@@ -4,25 +4,25 @@
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diff --git a/tests/integration/programs/primitive-type-bounds.smir.json.expected b/tests/integration/programs/primitive-type-bounds.smir.json.expected
index 2209f0a..275ad21 100644
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diff --git a/tests/integration/programs/recursion-simple-match.smir.json.expected b/tests/integration/programs/recursion-simple-match.smir.json.expected
index 2567052..cb4dda8 100644
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         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h96c25281eded21e5E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -2013,7 +2013,7 @@
           "name": "std::ptr::drop_in_place::<{closure@std::rt::lang_start<()>::{closure#0}}>"
         }
       },
-      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17ha54d3e04cb1513d1E"
+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
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     {
       "details": null,
@@ -2109,7 +2109,7 @@
           "name": "<() as std::process::Termination>::report"
         }
       },
-      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h1b26615e5477064aE"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
     }
   ]
 }
diff --git a/tests/integration/programs/recursion-simple.smir.json.expected b/tests/integration/programs/recursion-simple.smir.json.expected
index ed438f4..1aa246a 100644
--- a/tests/integration/programs/recursion-simple.smir.json.expected
+++ b/tests/integration/programs/recursion-simple.smir.json.expected
@@ -46,25 +46,25 @@
     [
       0,
       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
       13,
       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17hc9ab170b11232827E"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
       14,
       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h655bbf5ad37d7866E"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
       19,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h47cc69539d774688E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
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     [
@@ -76,25 +76,25 @@
     [
       21,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h2500d7ea93f58c70E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
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       23,
       {
-        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17he2c9997af6ea1a36E"
+        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
       27,
       {
-        "NormalSym": "_ZN16recursion_simple12sum_to_n_rec17h3cbe6d03a5ef69a5E"
+        "NormalSym": "_ZN16recursion_simple12sum_to_n_rec17h"
       }
     ],
     [
       29,
       {
-        "NormalSym": "_ZN4core9panicking5panic17h1b078f0122adb34fE"
+        "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
@@ -535,7 +535,7 @@
           "name": "sum_to_n_rec"
         }
       },
-      "symbol_name": "_ZN16recursion_simple12sum_to_n_rec17h3cbe6d03a5ef69a5E"
+      "symbol_name": "_ZN16recursion_simple12sum_to_n_rec17h"
     },
     {
       "details": null,
@@ -745,7 +745,7 @@
           "name": "main"
         }
       },
-      "symbol_name": "_ZN16recursion_simple4main17hea083389f2add465E"
+      "symbol_name": "_ZN16recursion_simple4main17h"
     },
     {
       "details": null,
@@ -1117,7 +1117,7 @@
           "name": "std::rt::lang_start::<()>"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start17h6f3b8935440502e9E"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
     },
     {
       "details": null,
@@ -1480,7 +1480,7 @@
           "name": "std::rt::lang_start::<()>::{closure#0}"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17he2c9997af6ea1a36E"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -1661,7 +1661,7 @@
           "name": "std::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>"
         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17hc9ab170b11232827E"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
     },
     {
       "details": null,
@@ -1748,7 +1748,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17ha99303762f727ffbE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -1907,7 +1907,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h2500d7ea93f58c70E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -1974,7 +1974,7 @@
           "name": "<fn() as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h47cc69539d774688E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -2013,7 +2013,7 @@
           "name": "std::ptr::drop_in_place::<{closure@std::rt::lang_start<()>::{closure#0}}>"
         }
       },
-      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h5cd86cd7d05abed4E"
+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
     },
     {
       "details": null,
@@ -2109,7 +2109,7 @@
           "name": "<() as std::process::Termination>::report"
         }
       },
-      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h655bbf5ad37d7866E"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
     }
   ]
 }
diff --git a/tests/integration/programs/ref-deref.smir.json.expected b/tests/integration/programs/ref-deref.smir.json.expected
index 969a9c3..44c9640 100644
--- a/tests/integration/programs/ref-deref.smir.json.expected
+++ b/tests/integration/programs/ref-deref.smir.json.expected
@@ -44,25 +44,25 @@
     [
       0,
       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
       13,
       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h2209da0d85019512E"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
       14,
       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h4f9c77724b045647E"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
       19,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h29c17b0395cce9dfE"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
@@ -74,19 +74,19 @@
     [
       21,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h8b71e772c69320b4E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
       23,
       {
-        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h24aba19602c3173dE"
+        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
       25,
       {
-        "NormalSym": "_ZN4core9panicking5panic17h1b078f0122adb34fE"
+        "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
@@ -467,7 +467,7 @@
           "name": "std::rt::lang_start::<()>"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start17hff3c45a4441fa21cE"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
     },
     {
       "details": null,
@@ -830,7 +830,7 @@
           "name": "std::rt::lang_start::<()>::{closure#0}"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h24aba19602c3173dE"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -1011,7 +1011,7 @@
           "name": "std::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>"
         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h2209da0d85019512E"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
     },
     {
       "details": null,
@@ -1098,7 +1098,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h354c1eede3be2001E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -1165,7 +1165,7 @@
           "name": "<fn() as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h29c17b0395cce9dfE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -1324,7 +1324,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h8b71e772c69320b4E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -1363,7 +1363,7 @@
           "name": "std::ptr::drop_in_place::<{closure@std::rt::lang_start<()>::{closure#0}}>"
         }
       },
-      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h81f3fb8d0c7e4abeE"
+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
     },
     {
       "details": null,
@@ -1459,7 +1459,7 @@
           "name": "<() as std::process::Termination>::report"
         }
       },
-      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h4f9c77724b045647E"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
     },
     {
       "details": null,
@@ -1738,7 +1738,7 @@
           "name": "main"
         }
       },
-      "symbol_name": "_ZN9ref_deref4main17hd5e9aa3e9b096520E"
+      "symbol_name": "_ZN9ref_deref4main17h"
     }
   ]
 }
diff --git a/tests/integration/programs/shl_min.smir.json.expected b/tests/integration/programs/shl_min.smir.json.expected
index 9c7a27e..484608d 100644
--- a/tests/integration/programs/shl_min.smir.json.expected
+++ b/tests/integration/programs/shl_min.smir.json.expected
@@ -316,25 +316,25 @@
     [
       0,
       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
       13,
       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h380b4a51a57f858cE"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
       14,
       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17hc22d5c4d8d5eda4dE"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
       19,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h5565a84b2bcc8422E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
@@ -346,19 +346,19 @@
     [
       21,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h97a7ff3f152f48d5E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
       23,
       {
-        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h1d02efcb48d20e88E"
+        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
       27,
       {
-        "NormalSym": "_ZN4core9panicking5panic17h1b078f0122adb34fE"
+        "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
@@ -739,7 +739,7 @@
           "name": "std::rt::lang_start::<()>"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start17h2f8fa9f18a134a32E"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
     },
     {
       "details": null,
@@ -1102,7 +1102,7 @@
           "name": "std::rt::lang_start::<()>::{closure#0}"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h1d02efcb48d20e88E"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -1283,7 +1283,7 @@
           "name": "std::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>"
         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h380b4a51a57f858cE"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
     },
     {
       "details": null,
@@ -1370,7 +1370,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h10dddd6d4fdde398E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -1437,7 +1437,7 @@
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         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h5565a84b2bcc8422E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -1596,7 +1596,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h97a7ff3f152f48d5E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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     {
       "details": null,
@@ -1635,7 +1635,7 @@
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         }
       },
-      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h3bd2945761e325daE"
+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
     },
     {
       "details": null,
@@ -1731,7 +1731,7 @@
           "name": "<() as std::process::Termination>::report"
         }
       },
-      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17hc22d5c4d8d5eda4dE"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
     },
     {
       "details": null,
@@ -3522,7 +3522,7 @@
           "name": "main"
         }
       },
-      "symbol_name": "_ZN7shl_min4main17ha09d7c732fcbfe55E"
+      "symbol_name": "_ZN7shl_min4main17h"
     }
   ]
 }
diff --git a/tests/integration/programs/slice.smir.json.expected b/tests/integration/programs/slice.smir.json.expected
index 5d18f8e..eacc2bf 100644
--- a/tests/integration/programs/slice.smir.json.expected
+++ b/tests/integration/programs/slice.smir.json.expected
@@ -70,37 +70,37 @@
     [
       1,
       {
-        "NormalSym": "_ZN4core5slice5index24slice_end_index_len_fail17h137110c15301da79E"
+        "NormalSym": "_ZN4core5slice5index24slice_end_index_len_fail17h"
       }
     ],
     [
       4,
       {
-        "NormalSym": "_ZN4core5slice5index22slice_index_order_fail17hff5113e5cc04c9f9E"
+        "NormalSym": "_ZN4core5slice5index22slice_index_order_fail17h"
       }
     ],
     [
       11,
       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
       24,
       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h3c2d0d2dccd344b9E"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
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     [
       25,
       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17hbea5f2636f8c0c63E"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
       30,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h3eae969071474082E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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@@ -112,37 +112,37 @@
     [
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       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h311abd4b1c62697bE"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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       {
-        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17hcc1384a9a6ecebd6E"
+        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
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     ],
     [
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       {
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+        "NormalSym": "_ZN4core5slice5index74_$LT$impl$u20$core..ops..index..Index$LT$I$GT$$u20$for$u20$$u5b$T$u5d$$GT$5index17h"
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     ],
     [
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+        "NormalSym": "_ZN4core5array8equality92_$LT$impl$u20$core..cmp..PartialEq$LT$$u5b$U$u3b$$u20$N$u5d$$GT$$u20$for$u20$$u5b$T$u5d$$GT$2eq17h"
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+      "symbol_name": "_ZN3std2rt10lang_start17h"
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-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17hcc1384a9a6ecebd6E"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
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-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h3c2d0d2dccd344b9E"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
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@@ -2061,7 +2061,7 @@
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       "details": null,
@@ -2220,7 +2220,7 @@
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       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h311abd4b1c62697bE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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         }
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-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h3eae969071474082E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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@@ -2326,7 +2326,7 @@
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@@ -2473,7 +2473,7 @@
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+      "symbol_name": "_ZN4core5array85_$LT$impl$u20$core..ops..index..Index$LT$I$GT$$u20$for$u20$$u5b$T$u3b$$u20$N$u5d$$GT$5index17h"
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@@ -3168,7 +3168,7 @@
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       "details": null,
@@ -3311,7 +3311,7 @@
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@@ -3427,7 +3427,7 @@
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+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
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@@ -4254,7 +4254,7 @@
           "name": "main"
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       },
-      "symbol_name": "_ZN5slice4main17h982023fdd0e6b27fE"
+      "symbol_name": "_ZN5slice4main17h"
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@@ -4412,7 +4412,7 @@
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         }
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-      "symbol_name": "_ZN69_$LT$T$u20$as$u20$core..array..equality..SpecArrayEq$LT$U$C$_$GT$$GT$7spec_eq17haaa877014424f7ceE"
+      "symbol_name": "_ZN69_$LT$T$u20$as$u20$core..array..equality..SpecArrayEq$LT$U$C$_$GT$$GT$7spec_eq17h"
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 }
diff --git a/tests/integration/programs/strange-ref-deref.smir.json.expected b/tests/integration/programs/strange-ref-deref.smir.json.expected
index 176efaa..394ce0a 100644
--- a/tests/integration/programs/strange-ref-deref.smir.json.expected
+++ b/tests/integration/programs/strange-ref-deref.smir.json.expected
@@ -45,25 +45,25 @@
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       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
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     ],
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       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h4c6d892f65578af7E"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
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       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h61ff3532f28130abE"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
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       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h17e4c3cc9ad24e82E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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     [
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       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h491807954c4c1c5fE"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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       {
-        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h0564249960183bdaE"
+        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
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     [
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       {
-        "NormalSym": "_ZN4core9panicking5panic17h1b078f0122adb34fE"
+        "NormalSym": "_ZN4core9panicking5panic17h"
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@@ -431,7 +431,7 @@
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         }
       },
-      "symbol_name": "_ZN17strange_ref_deref4main17ha5ed69bb326768b5E"
+      "symbol_name": "_ZN17strange_ref_deref4main17h"
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         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start17hc5c15f73999053e2E"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
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         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h0564249960183bdaE"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
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@@ -1347,7 +1347,7 @@
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         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h4c6d892f65578af7E"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
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@@ -1434,7 +1434,7 @@
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-      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h3055c96acf021728E"
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-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h17e4c3cc9ad24e82E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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@@ -1660,7 +1660,7 @@
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-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h491807954c4c1c5fE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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@@ -1699,7 +1699,7 @@
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+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
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@@ -1795,7 +1795,7 @@
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         }
       },
-      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h61ff3532f28130abE"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
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 }
diff --git a/tests/integration/programs/struct.smir.json.expected b/tests/integration/programs/struct.smir.json.expected
index a86b779..0eeacdd 100644
--- a/tests/integration/programs/struct.smir.json.expected
+++ b/tests/integration/programs/struct.smir.json.expected
@@ -51,25 +51,25 @@
     [
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       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
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       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h0699d3b40d658af9E"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
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       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h07b34746fe4a8e28E"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
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     [
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       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17hb0b46d751d94c51dE"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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       {
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+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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       {
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     [
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       {
-        "NormalSym": "_ZN4core9panicking5panic17h1b078f0122adb34fE"
+        "NormalSym": "_ZN4core9panicking5panic17h"
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       },
-      "symbol_name": "_ZN3std2rt10lang_start17h6f5509323d95d619E"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
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         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h304cf6e5c6625a84E"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
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     {
       "details": null,
@@ -1018,7 +1018,7 @@
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         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h0699d3b40d658af9E"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
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       "details": null,
@@ -1105,7 +1105,7 @@
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-      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h28b985da3dd0601dE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
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       },
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+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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@@ -1331,7 +1331,7 @@
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       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17hc83a06bf843dd1dfE"
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       "details": null,
@@ -1370,7 +1370,7 @@
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@@ -1466,7 +1466,7 @@
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+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
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@@ -1940,7 +1940,7 @@
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         }
       },
-      "symbol_name": "_ZN6struct4main17h5c592763fb9dc6c3E"
+      "symbol_name": "_ZN6struct4main17h"
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 }
diff --git a/tests/integration/programs/sum-to-n.smir.json.expected b/tests/integration/programs/sum-to-n.smir.json.expected
index 40fd144..3aa2d1b 100644
--- a/tests/integration/programs/sum-to-n.smir.json.expected
+++ b/tests/integration/programs/sum-to-n.smir.json.expected
@@ -43,25 +43,25 @@
     [
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       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
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       13,
       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17hd35b85d5c0390cf1E"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
       14,
       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17hcb7fa696e1ada2eeE"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
       19,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h1c41a4289354ed9eE"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
@@ -73,31 +73,31 @@
     [
       21,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h91171ee1e758b4c8E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
       23,
       {
-        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17hbf65feaff4e3e97dE"
+        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
       28,
       {
-        "NormalSym": "_ZN8sum_to_n8sum_to_n17h4938f719ae861d21E"
+        "NormalSym": "_ZN8sum_to_n8sum_to_n17h"
       }
     ],
     [
       29,
       {
-        "NormalSym": "_ZN4core9panicking5panic17h1b078f0122adb34fE"
+        "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
       32,
       {
-        "NormalSym": "_ZN8sum_to_n13test_sum_to_n17h05511a3b7ab62339E"
+        "NormalSym": "_ZN8sum_to_n13test_sum_to_n17h"
       }
     ],
     [
@@ -478,7 +478,7 @@
           "name": "std::rt::lang_start::<()>"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start17hbb5439d01d0d6fdfE"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
     },
     {
       "details": null,
@@ -841,7 +841,7 @@
           "name": "std::rt::lang_start::<()>::{closure#0}"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17hbf65feaff4e3e97dE"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -1022,7 +1022,7 @@
           "name": "std::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>"
         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17hd35b85d5c0390cf1E"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
     },
     {
       "details": null,
@@ -1109,7 +1109,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h70b1ea40c7b2e5b1E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -1176,7 +1176,7 @@
           "name": "<fn() as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h1c41a4289354ed9eE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -1335,7 +1335,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h91171ee1e758b4c8E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -1374,7 +1374,7 @@
           "name": "std::ptr::drop_in_place::<{closure@std::rt::lang_start<()>::{closure#0}}>"
         }
       },
-      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17he09300336d269a83E"
+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
     },
     {
       "details": null,
@@ -1470,7 +1470,7 @@
           "name": "<() as std::process::Termination>::report"
         }
       },
-      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17hcb7fa696e1ada2eeE"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
     },
     {
       "details": null,
@@ -1866,7 +1866,7 @@
           "name": "test_sum_to_n"
         }
       },
-      "symbol_name": "_ZN8sum_to_n13test_sum_to_n17h05511a3b7ab62339E"
+      "symbol_name": "_ZN8sum_to_n13test_sum_to_n17h"
     },
     {
       "details": null,
@@ -1933,7 +1933,7 @@
           "name": "main"
         }
       },
-      "symbol_name": "_ZN8sum_to_n4main17h035b1be00fe7d484E"
+      "symbol_name": "_ZN8sum_to_n4main17h"
     },
     {
       "details": null,
@@ -2539,7 +2539,7 @@
           "name": "sum_to_n"
         }
       },
-      "symbol_name": "_ZN8sum_to_n8sum_to_n17h4938f719ae861d21E"
+      "symbol_name": "_ZN8sum_to_n8sum_to_n17h"
     }
   ]
 }
diff --git a/tests/integration/programs/tuple-eq.smir.json.expected b/tests/integration/programs/tuple-eq.smir.json.expected
index 60fc5b0..00dc480 100644
--- a/tests/integration/programs/tuple-eq.smir.json.expected
+++ b/tests/integration/programs/tuple-eq.smir.json.expected
@@ -74,25 +74,25 @@
     [
       0,
       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
       13,
       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h333150e68339170dE"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
       14,
       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h802a391040998644E"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
       19,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17hc8fe996961b168afE"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
@@ -104,31 +104,31 @@
     [
       23,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h25f27f1fe7e893baE"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
       25,
       {
-        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h79451430f217f4ecE"
+        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
       27,
       {
-        "NormalSym": "_ZN4core3cmp5impls54_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$i32$GT$2eq17ha183e644e33f34d8E"
+        "NormalSym": "_ZN4core3cmp5impls54_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$i32$GT$2eq17h"
       }
     ],
     [
       29,
       {
-        "NormalSym": "_ZN4core5tuple64_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$$LP$U$C$T$RP$$GT$2eq17h01cda7e1735747c8E"
+        "NormalSym": "_ZN4core5tuple64_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$$LP$U$C$T$RP$$GT$2eq17h"
       }
     ],
     [
       30,
       {
-        "NormalSym": "_ZN4core9panicking5panic17h1b078f0122adb34fE"
+        "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
@@ -509,7 +509,7 @@
           "name": "std::rt::lang_start::<()>"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start17h4a8ff1f95d63fd82E"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
     },
     {
       "details": null,
@@ -872,7 +872,7 @@
           "name": "std::rt::lang_start::<()>::{closure#0}"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h79451430f217f4ecE"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -1053,7 +1053,7 @@
           "name": "std::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>"
         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h333150e68339170dE"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
     },
     {
       "details": null,
@@ -1233,7 +1233,7 @@
           "name": "std::cmp::impls::<impl std::cmp::PartialEq for i32>::eq"
         }
       },
-      "symbol_name": "_ZN4core3cmp5impls54_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$i32$GT$2eq17ha183e644e33f34d8E"
+      "symbol_name": "_ZN4core3cmp5impls54_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$i32$GT$2eq17h"
     },
     {
       "details": null,
@@ -1320,7 +1320,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h485d9eaffc868729E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -1479,7 +1479,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h25f27f1fe7e893baE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -1546,7 +1546,7 @@
           "name": "<fn() as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17hc8fe996961b168afE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -1585,7 +1585,7 @@
           "name": "std::ptr::drop_in_place::<{closure@std::rt::lang_start<()>::{closure#0}}>"
         }
       },
-      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17ha00f3cf49702cdddE"
+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
     },
     {
       "details": null,
@@ -2050,7 +2050,7 @@
           "name": "core::tuple::<impl std::cmp::PartialEq for (i32, i32)>::eq"
         }
       },
-      "symbol_name": "_ZN4core5tuple64_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$$LP$U$C$T$RP$$GT$2eq17h01cda7e1735747c8E"
+      "symbol_name": "_ZN4core5tuple64_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$$LP$U$C$T$RP$$GT$2eq17h"
     },
     {
       "details": null,
@@ -2146,7 +2146,7 @@
           "name": "<() as std::process::Termination>::report"
         }
       },
-      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h802a391040998644E"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
     },
     {
       "details": null,
@@ -2616,7 +2616,7 @@
           "name": "main"
         }
       },
-      "symbol_name": "_ZN8tuple_eq4main17ha65f20838f174f24E"
+      "symbol_name": "_ZN8tuple_eq4main17h"
     }
   ]
 }
diff --git a/tests/integration/programs/tuples-simple.smir.json.expected b/tests/integration/programs/tuples-simple.smir.json.expected
index fa58c75..ca8895d 100644
--- a/tests/integration/programs/tuples-simple.smir.json.expected
+++ b/tests/integration/programs/tuples-simple.smir.json.expected
@@ -51,25 +51,25 @@
     [
       0,
       {
-        "NormalSym": "_ZN3std2rt19lang_start_internal17h51b943990c0e2c96E"
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
       13,
       {
-        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h00643f07709fa1eaE"
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
       14,
       {
-        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h23382e62d2feae6bE"
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
       19,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h0d9b04fb7ab9c1b6E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
@@ -81,19 +81,19 @@
     [
       21,
       {
-        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17hafce5092b1d3d3a9E"
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
       23,
       {
-        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h0a77e0c39c7e9e81E"
+        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
       25,
       {
-        "NormalSym": "_ZN4core9panicking5panic17h1b078f0122adb34fE"
+        "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
@@ -422,7 +422,7 @@
           "name": "main"
         }
       },
-      "symbol_name": "_ZN13tuples_simple4main17hf563d963407a8479E"
+      "symbol_name": "_ZN13tuples_simple4main17h"
     },
     {
       "details": null,
@@ -794,7 +794,7 @@
           "name": "std::rt::lang_start::<()>"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start17h08d5ed836490d97bE"
+      "symbol_name": "_ZN3std2rt10lang_start17h"
     },
     {
       "details": null,
@@ -1157,7 +1157,7 @@
           "name": "std::rt::lang_start::<()>::{closure#0}"
         }
       },
-      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h0a77e0c39c7e9e81E"
+      "symbol_name": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -1338,7 +1338,7 @@
           "name": "std::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>"
         }
       },
-      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h00643f07709fa1eaE"
+      "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
     },
     {
       "details": null,
@@ -1425,7 +1425,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17hf3797bbe895965bfE"
+      "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
     {
       "details": null,
@@ -1492,7 +1492,7 @@
           "name": "<fn() as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h0d9b04fb7ab9c1b6E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -1651,7 +1651,7 @@
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17hafce5092b1d3d3a9E"
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
     {
       "details": null,
@@ -1690,7 +1690,7 @@
           "name": "std::ptr::drop_in_place::<{closure@std::rt::lang_start<()>::{closure#0}}>"
         }
       },
-      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h55cd7ab616222eddE"
+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
     },
     {
       "details": null,
@@ -1786,7 +1786,7 @@
           "name": "<() as std::process::Termination>::report"
         }
       },
-      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h23382e62d2feae6bE"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
     }
   ]
 }

From 7f9d3322cafa1cbf33701efcca6a00ac2922b813 Mon Sep 17 00:00:00 2001
From: dkcumming <daniel.cumming@runtimeverification.com>
Date: Wed, 15 Jan 2025 15:33:38 +1000
Subject: [PATCH 11/15] Removing ids from functions and allocs

---
 tests/integration/normalise-filter.jq | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tests/integration/normalise-filter.jq b/tests/integration/normalise-filter.jq
index 5b63a49..fc04d8a 100644
--- a/tests/integration/normalise-filter.jq
+++ b/tests/integration/normalise-filter.jq
@@ -7,11 +7,13 @@
     ( [ .allocs[] ]
 # sort allocs by their ID
         | sort_by(.[0])
+        | map(del(.[0]))
     ),
   functions:
     ( [ .functions[] ]
 # sort functions by their ID (int, first in list)
         | sort_by(.[0])
+        | map(del(.[0]))
     ),
   items:
     ( [ .items[] ]

From e6d30864210987eb4f78f90724eca9fcabbccabb Mon Sep 17 00:00:00 2001
From: Daniel Cumming <124537596+dkcumming@users.noreply.github.com>
Date: Wed, 15 Jan 2025 16:10:42 +1000
Subject: [PATCH 12/15] Changed the expected files to remove ids (#26)

---
 .../failing/array.smir.json.expected          |   14 -
 .../failing/box.smir.json.expected            |   44 -
 .../failing/defined-trait.smir.json.expected  |   63 -
 .../derive-copy-struct.smir.json.expected     |   14 -
 .../failing/generic.smir.json.expected        |   19 -
 .../failing/panic_example.smir.json.expected  |   43 -
 .../std-string-empty.smir.json.expected       |   39 -
 .../failing/std-to-string.smir.json.expected  |   62 -
 .../failing/str-empty.smir.json.expected      |   19 -
 .../failing/str-trivial.smir.json.expected    |   19 -
 .../programs/assert_eq.smir.json.expected     | 1794 +++--------------
 .../programs/binop.smir.json.expected         | 1463 ++++++--------
 .../programs/char-trivial.smir.json.expected  |  343 ++--
 .../programs/closure-args.smir.json.expected  |  514 ++---
 .../closure-no-args.smir.json.expected        |  374 ++--
 .../const-arithm-simple.smir.json.expected    |  516 ++---
 .../programs/div.smir.json.expected           |  381 ++--
 .../double-ref-deref.smir.json.expected       |  483 ++---
 .../programs/enum.smir.json.expected          |  439 ++--
 .../programs/fibonacci.smir.json.expected     |  476 ++---
 .../programs/float.smir.json.expected         |  440 ++--
 .../programs/modulo.smir.json.expected        |  381 ++--
 .../mutual_recursion.smir.json.expected       |  579 +++---
 .../option-construction.smir.json.expected    |  385 ++--
 .../primitive-type-bounds.smir.json.expected  |  507 ++---
 .../recursion-simple-match.smir.json.expected |  420 ++--
 .../recursion-simple.smir.json.expected       |  420 ++--
 .../programs/ref-deref.smir.json.expected     |  349 ++--
 .../programs/shl_min.smir.json.expected       |  581 +++---
 .../programs/slice.smir.json.expected         | 1121 +++++-----
 .../strange-ref-deref.smir.json.expected      |  483 ++---
 .../programs/struct.smir.json.expected        |  391 ++--
 .../programs/sum-to-n.smir.json.expected      |  621 +++---
 .../programs/tuple-eq.smir.json.expected      |  644 +++---
 .../programs/tuples-simple.smir.json.expected |  353 ++--
 35 files changed, 5470 insertions(+), 9324 deletions(-)

diff --git a/tests/integration/failing/array.smir.json.expected b/tests/integration/failing/array.smir.json.expected
index 405f857..0a4d0f3 100644
--- a/tests/integration/failing/array.smir.json.expected
+++ b/tests/integration/failing/array.smir.json.expected
@@ -1,7 +1,6 @@
 {
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       {
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           "align": 4,
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       }
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     [
-      1,
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       {
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       {
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     [
-      19,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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     ],
     [
-      21,
       {
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       }
     ],
     [
-      23,
       {
         "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
-      25,
       {
         "NormalSym": "_ZN69_$LT$T$u20$as$u20$core..array..equality..SpecArrayEq$LT$U$C$_$GT$$GT$7spec_eq17h"
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     ],
     [
-      28,
       {
         "IntrinsicSym": "raw_eq"
       }
     ],
     [
-      29,
       {
         "NormalSym": "_ZN4core5array8equality103_$LT$impl$u20$core..cmp..PartialEq$LT$$u5b$U$u3b$$u20$N$u5d$$GT$$u20$for$u20$$u5b$T$u3b$$u20$N$u5d$$GT$2eq17h"
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       {
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-      34,
       {
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diff --git a/tests/integration/failing/box.smir.json.expected b/tests/integration/failing/box.smir.json.expected
index 81b7952..7e1d9d3 100644
--- a/tests/integration/failing/box.smir.json.expected
+++ b/tests/integration/failing/box.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
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-      0,
       {
         "Memory": {
           "align": 1,
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       {
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@@ -173,7 +170,6 @@
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@@ -208,7 +204,6 @@
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     [
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@@ -520,7 +508,6 @@
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       {
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       {
         "NormalSym": "_ZN4core9panicking14panic_nounwind17h"
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     [
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     [
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       {
         "NormalSym": "_ZN4core9panicking9panic_fmt17h"
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     ],
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       {
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       {
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         "NormalSym": "_ZN5alloc5alloc18handle_alloc_error17h"
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     [
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       {
         "NormalSym": ""
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     ],
     [
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       {
         "NormalSym": "_ZN4core3ptr8non_null16NonNull$LT$T$GT$13new_unchecked18precondition_check17h"
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-      76,
       {
         "NormalSym": "_ZN5alloc5alloc15exchange_malloc17h"
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       {
         "NormalSym": ""
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       {
         "NormalSym": "_ZN4core3cmp5impls54_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$i32$GT$2eq17h"
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       {
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     ],
     [
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       {
         "NormalSym": "_ZN5alloc5boxed12Box$LT$T$GT$3new17h"
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     ],
     [
-      88,
       {
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       {
         "NormalSym": "_ZN4core9panicking5panic17h"
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       {
         "NormalSym": "_ZN4core3ptr49drop_in_place$LT$alloc..boxed..Box$LT$i32$GT$$GT$17h"
       }
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         "NoOpSym": ""
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       {
         "NoOpSym": ""
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diff --git a/tests/integration/failing/defined-trait.smir.json.expected b/tests/integration/failing/defined-trait.smir.json.expected
index dbc3d60..239c476 100644
--- a/tests/integration/failing/defined-trait.smir.json.expected
+++ b/tests/integration/failing/defined-trait.smir.json.expected
@@ -1,7 +1,6 @@
 {
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@@ -181,7 +180,6 @@
       }
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@@ -216,7 +214,6 @@
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         "Memory": {
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     [
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     [
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           "align": 1,
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       {
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       {
         "Memory": {
           "align": 1,
@@ -876,7 +865,6 @@
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       {
         "Memory": {
           "align": 8,
@@ -911,7 +899,6 @@
       }
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     [
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       {
         "Memory": {
           "align": 1,
@@ -991,7 +978,6 @@
       }
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     [
-      13,
       {
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           "align": 1,
@@ -1032,7 +1018,6 @@
       }
     ],
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       {
         "Memory": {
           "align": 1,
@@ -1088,7 +1073,6 @@
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       {
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           "align": 1,
@@ -1144,7 +1128,6 @@
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       {
         "Memory": {
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@@ -1187,277 +1170,231 @@
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     [
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       {
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       {
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       }
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       }
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     [
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       {
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     [
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       }
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     [
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       {
         "NormalSym": "_ZN73_$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$5equal17h"
       }
     ],
     [
-      116,
       {
         "NormalSym": "_ZN47_$LT$str$u20$as$u20$alloc..string..ToString$GT$9to_string17h"
       }
     ],
     [
-      118,
       {
         "NormalSym": "_ZN67_$LT$defined_trait..Container$u20$as$u20$defined_trait..Summary$GT$9summarise17h"
       }
     ],
     [
-      119,
       {
         "NormalSym": "_ZN77_$LT$alloc..string..String$u20$as$u20$core..cmp..PartialEq$LT$$RF$str$GT$$GT$2eq17h"
       }
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         "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
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       {
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       }
     ],
     [
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       {
         "NormalSym": "_ZN4core3ptr46drop_in_place$LT$alloc..vec..Vec$LT$u8$GT$$GT$17h"
       }
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     [
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       {
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       {
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diff --git a/tests/integration/failing/derive-copy-struct.smir.json.expected b/tests/integration/failing/derive-copy-struct.smir.json.expected
index 893bf93..f1437af 100644
--- a/tests/integration/failing/derive-copy-struct.smir.json.expected
+++ b/tests/integration/failing/derive-copy-struct.smir.json.expected
@@ -1,7 +1,6 @@
 {
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     [
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       {
         "NormalSym": "_ZN97_$LT$core..ops..range..RangeFull$u20$as$u20$core..slice..index..SliceIndex$LT$$u5b$T$u5d$$GT$$GT$5index17h"
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     [
-      33,
       {
         "NormalSym": "_ZN4core5array85_$LT$impl$u20$core..ops..index..Index$LT$I$GT$$u20$for$u20$$u5b$T$u3b$$u20$N$u5d$$GT$5index17h"
       }
     ],
     [
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       {
         "NormalSym": "_ZN18derive_copy_struct20take_first_container17h"
       }
     ],
     [
-      36,
       {
         "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
-      41,
       {
         "NoOpSym": ""
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diff --git a/tests/integration/failing/generic.smir.json.expected b/tests/integration/failing/generic.smir.json.expected
index 7319815..b294055 100644
--- a/tests/integration/failing/generic.smir.json.expected
+++ b/tests/integration/failing/generic.smir.json.expected
@@ -1,7 +1,6 @@
 {
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     [
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       {
         "Memory": {
           "align": 1,
@@ -52,7 +51,6 @@
       }
     ],
     [
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         "Memory": {
           "align": 1,
@@ -107,103 +105,86 @@
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index a167752..b107652 100644
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diff --git a/tests/integration/failing/std-string-empty.smir.json.expected b/tests/integration/failing/std-string-empty.smir.json.expected
index 2c8d4fd..37d1426 100644
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diff --git a/tests/integration/failing/std-to-string.smir.json.expected b/tests/integration/failing/std-to-string.smir.json.expected
index eebdf33..f7253a3 100644
--- a/tests/integration/failing/std-to-string.smir.json.expected
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diff --git a/tests/integration/failing/str-empty.smir.json.expected b/tests/integration/failing/str-empty.smir.json.expected
index f52ac01..ee57346 100644
--- a/tests/integration/failing/str-empty.smir.json.expected
+++ b/tests/integration/failing/str-empty.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
     [
-      0,
       {
         "Memory": {
           "align": 1,
@@ -14,7 +13,6 @@
       }
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-      1,
       {
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@@ -49,7 +47,6 @@
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         "Memory": {
           "align": 1,
@@ -88,7 +85,6 @@
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       {
         "Memory": {
           "align": 1,
@@ -101,7 +97,6 @@
       }
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     [
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         "Memory": {
           "align": 1,
@@ -116,85 +111,71 @@
   ],
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       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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     [
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       {
         "NormalSym": "_ZN4core3str6traits54_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$str$GT$2eq17h"
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-      25,
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     [
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       {
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     [
-      33,
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       {
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-      42,
       {
         "NoOpSym": ""
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diff --git a/tests/integration/failing/str-trivial.smir.json.expected b/tests/integration/failing/str-trivial.smir.json.expected
index 8b2631a..58dd252 100644
--- a/tests/integration/failing/str-trivial.smir.json.expected
+++ b/tests/integration/failing/str-trivial.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
     [
-      0,
       {
         "Memory": {
           "align": 1,
@@ -16,7 +15,6 @@
       }
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       {
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@@ -51,7 +49,6 @@
       }
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@@ -91,7 +88,6 @@
       }
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@@ -106,7 +102,6 @@
       }
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     [
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         "Memory": {
           "align": 1,
@@ -123,85 +118,71 @@
   ],
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       {
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       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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       }
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       {
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       {
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       }
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       {
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       }
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     [
-      33,
       {
         "IntrinsicSym": "compare_bytes"
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     [
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       {
         "NormalSym": "_ZN4core3cmp5impls69_$LT$impl$u20$core..cmp..PartialEq$LT$$RF$B$GT$$u20$for$u20$$RF$A$GT$2eq17h"
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       {
         "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
-      41,
       {
         "NoOpSym": ""
       }
diff --git a/tests/integration/programs/assert_eq.smir.json.expected b/tests/integration/programs/assert_eq.smir.json.expected
index 6e0f6db..716eaef 100644
--- a/tests/integration/programs/assert_eq.smir.json.expected
+++ b/tests/integration/programs/assert_eq.smir.json.expected
@@ -2,85 +2,46 @@
   "allocs": [],
   "functions": [
     [
-      0,
       {
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       }
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       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
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       {
         "IntrinsicSym": "black_box"
       }
     ],
     [
-      21,
-      {
-        "NormalSym": "_ZN4core3fmt3num50_$LT$impl$u20$core..fmt..Debug$u20$for$u20$i32$GT$3fmt17h"
-      }
-    ],
-    [
-      27,
-      {
-        "NormalSym": "_ZN4core3fmt3num53_$LT$impl$u20$core..fmt..LowerHex$u20$for$u20$i32$GT$3fmt17h"
-      }
-    ],
-    [
-      28,
-      {
-        "NormalSym": "_ZN4core3fmt3num53_$LT$impl$u20$core..fmt..UpperHex$u20$for$u20$i32$GT$3fmt17h"
-      }
-    ],
-    [
-      29,
-      {
-        "NormalSym": "_ZN4core3fmt3num3imp52_$LT$impl$u20$core..fmt..Display$u20$for$u20$i32$GT$3fmt17h"
-      }
-    ],
-    [
-      30,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      32,
       {
         "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
-      35,
-      {
-        "NormalSym": "_ZN4core9panicking19assert_failed_inner17h"
-      }
-    ],
-    [
-      41,
       {
         "NormalSym": "_ZN4core9panicking13assert_failed17h"
       }
     ],
     [
-      45,
       {
         "NoOpSym": ""
       }
@@ -109,12 +70,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -199,7 +154,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -210,12 +165,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -275,7 +224,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -304,51 +253,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -362,7 +311,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -372,7 +321,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -381,7 +330,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -396,7 +345,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -411,7 +360,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -426,7 +375,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -441,7 +390,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -473,19 +422,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -512,7 +461,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -537,7 +486,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -545,7 +494,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -554,7 +503,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -579,7 +528,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -587,7 +536,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -596,13 +545,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -611,42 +560,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
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-                      },
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-                    },
-                    {
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-                      },
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-                    },
-                    {
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-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -670,7 +583,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -684,7 +597,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -693,37 +606,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
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                     "kind": "Return",
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+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -733,27 +640,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -766,7 +668,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -789,7 +691,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -797,21 +699,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 30
-                  },
-                  "value": {
-                    "Place": {
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-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -849,7 +736,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -863,9 +750,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -873,7 +760,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -889,7 +776,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -903,9 +790,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -913,35 +800,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
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                 {
                   "statements": [],
                   "terminator": {
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+                    "span": 33
                   }
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               "locals": [
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                   "mutability": "Mut",
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+                  "span": 34,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
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+                  "span": 35,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 39,
+                  "span": 36,
                   "ty": 1
                 }
               ],
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+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -950,7 +837,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -965,7 +852,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -980,7 +867,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -989,7 +876,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1012,37 +899,17 @@
               "arg_count": 2,
               "blocks": [
                 {
-                  "statements": [
-                    {
-                      "kind": {
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-                          {
-                            "local": 3,
-                            "projection": []
-                          },
-                          {
-                            "Use": {
-                              "Copy": {
-                                "local": 1,
-                                "projection": [
-                                  "Deref"
-                                ]
-                              }
-                            }
-                          }
-                        ]
-                      },
-                      "span": 45
-                    }
-                  ],
+                  "statements": [],
                   "terminator": {
                     "kind": {
                       "Call": {
                         "args": [
                           {
                             "Move": {
-                              "local": 3,
-                              "projection": []
+                              "local": 1,
+                              "projection": [
+                                "Deref"
+                              ]
                             }
                           },
                           {
@@ -1061,9 +928,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1071,80 +938,44 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 44
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 46
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 47,
-                  "ty": 22
+                  "span": 40,
+                  "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 48,
-                  "ty": 23
+                  "span": 40,
+                  "ty": 21
                 },
                 {
                   "mutability": "Not",
-                  "span": 49,
-                  "ty": 24
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 48,
-                  "ty": 25
+                  "span": 40,
+                  "ty": 1
                 }
               ],
-              "span": 50,
-              "spread_arg": null,
-              "var_debug_info": [
-                {
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-                  "composite": null,
-                  "name": "self",
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-                    "span": 48
-                  },
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-                },
-                {
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-                          {
-                            "local": 8,
-                            "projection": []
-                          },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
                               {
-                                "local": 3,
+                                "local": 1,
                                 "projection": []
                               }
                             ]
                           }
                         ]
                       },
-                      "span": 79
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 7,
-                            "projection": []
-                          },
-                          {
-                            "Cast": [
-                              {
-                                "PointerCoercion": "Unsize"
-                              },
-                              {
-                                "Move": {
-                                  "local": 8,
-                                  "projection": []
-                                }
-                              },
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-                    {
-                      "kind": {
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-                      "span": 80
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-                    "kind": {
-                      "Call": {
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-                          {
-                            "Move": {
-                              "local": 1,
-                              "projection": []
-                            }
-                          },
-                          {
-                            "Move": {
-                              "local": 5,
-                              "projection": []
-                            }
-                          },
+                      "span": 40
+                    }
+                  ],
+                  "terminator": {
+                    "kind": {
+                      "Call": {
+                        "args": [
                           {
                             "Move": {
-                              "local": 7,
+                              "local": 3,
                               "projection": []
                             }
                           },
                           {
                             "Move": {
-                              "local": 4,
+                              "local": 2,
                               "projection": []
                             }
                           }
@@ -2238,140 +1039,208 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 14,
+                              "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 35
+                              "ty": 22
                             },
-                            "span": 75,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
-                        "target": null,
+                        "target": 1,
+                        "unwind": {
+                          "Cleanup": 3
+                        }
+                      }
+                    },
+                    "span": 40
+                  }
+                },
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": {
+                      "Drop": {
+                        "place": {
+                          "local": 1,
+                          "projection": []
+                        },
+                        "target": 2,
                         "unwind": "Continue"
                       }
                     },
-                    "span": 76
+                    "span": 40
+                  }
+                },
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": "Return",
+                    "span": 40
+                  }
+                },
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": {
+                      "Drop": {
+                        "place": {
+                          "local": 1,
+                          "projection": []
+                        },
+                        "target": 4,
+                        "unwind": "Terminate"
+                      }
+                    },
+                    "span": 40
+                  }
+                },
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": "Resume",
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 81,
-                  "ty": 37
+                  "span": 40,
+                  "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 82,
-                  "ty": 38
+                  "span": 40,
+                  "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 83,
-                  "ty": 25
+                  "span": 40,
+                  "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 84,
-                  "ty": 25
-                },
+                  "span": 40,
+                  "ty": 23
+                }
+              ],
+              "span": 40,
+              "spread_arg": 2,
+              "var_debug_info": []
+            }
+          ],
+          "id": 3,
+          "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
+        }
+      },
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
+    },
+    {
+      "details": null,
+      "mono_item_kind": {
+        "MonoItemFn": {
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+            {
+              "arg_count": 2,
+              "blocks": [
                 {
-                  "mutability": "Not",
-                  "span": 85,
-                  "ty": 39
+                  "statements": [],
+                  "terminator": {
+                    "kind": {
+                      "Call": {
+                        "args": [],
+                        "destination": {
+                          "local": 0,
+                          "projection": []
+                        },
+                        "func": {
+                          "Move": {
+                            "local": 1,
+                            "projection": []
+                          }
+                        },
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+                        "unwind": "Continue"
+                      }
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+                    "span": 40
+                  }
                 },
                 {
-                  "mutability": "Mut",
-                  "span": 77,
-                  "ty": 36
-                },
+                  "statements": [],
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+                    "span": 40
+                  }
+                }
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                 {
                   "mutability": "Mut",
-                  "span": 77,
-                  "ty": 23
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                 },
                 {
-                  "mutability": "Mut",
-                  "span": 79,
-                  "ty": 36
+                  "mutability": "Not",
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+                  "ty": 7
                 },
                 {
-                  "mutability": "Mut",
-                  "span": 79,
-                  "ty": 23
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               ],
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-                    "span": 82
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 1,
-                      "projection": []
-                    }
-                  }
-                },
+              "span": 40,
+              "spread_arg": 2,
+              "var_debug_info": []
+            }
+          ],
+          "id": 3,
+          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
+        }
+      },
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
+    },
+    {
+      "details": null,
+      "mono_item_kind": {
+        "MonoItemFn": {
+          "body": [
+            {
+              "arg_count": 1,
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                 {
-                  "argument_index": 2,
-                  "composite": null,
-                  "name": "left",
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-                    "scope": 0,
-                    "span": 83
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 2,
-                      "projection": []
-                    }
+                  "statements": [],
+                  "terminator": {
+                    "kind": "Return",
+                    "span": 41
                   }
-                },
+                }
+              ],
+              "locals": [
                 {
-                  "argument_index": 3,
-                  "composite": null,
-                  "name": "right",
-                  "source_info": {
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-                    "span": 84
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 3,
-                      "projection": []
-                    }
-                  }
+                  "mutability": "Mut",
+                  "span": 41,
+                  "ty": 1
                 },
                 {
-                  "argument_index": 4,
-                  "composite": null,
-                  "name": "args",
-                  "source_info": {
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-                    "span": 85
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 4,
-                      "projection": []
-                    }
-                  }
+                  "mutability": "Not",
+                  "span": 41,
+                  "ty": 21
                 }
-              ]
+              ],
+              "span": 41,
+              "spread_arg": null,
+              "var_debug_info": []
             }
           ],
-          "id": 7,
-          "name": "core::panicking::assert_failed::<i32, i32>"
+          "id": 4,
+          "name": "std::ptr::drop_in_place::<{closure@std::rt::lang_start<()>::{closure#0}}>"
         }
       },
-      "symbol_name": "_ZN4core9panicking13assert_failed17h"
+      "symbol_name": "_ZN4core3ptr85drop_in_place$LT$std..rt..lang_start$LT$$LP$$RP$$GT$..$u7b$$u7b$closure$u7d$$u7d$$GT$17h"
     },
     {
       "details": null,
@@ -2394,7 +1263,7 @@
                             "Use": {
                               "Constant": {
                                 "const_": {
-                                  "id": 15,
+                                  "id": 8,
                                   "kind": {
                                     "Allocated": {
                                       "align": 1,
@@ -2409,61 +1278,40 @@
                                   },
                                   "ty": 17
                                 },
-                                "span": 88,
+                                "span": 43,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 88
+                      "span": 43
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 87
+                    "span": 42
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 89,
+                  "span": 44,
                   "ty": 17
                 },
                 {
                   "mutability": "Not",
-                  "span": 90,
+                  "span": 45,
                   "ty": 1
                 }
               ],
-              "span": 91,
+              "span": 46,
               "spread_arg": null,
-              "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 90
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 4,
-                        "kind": "ZeroSized",
-                        "ty": 1
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
-          "id": 8,
+          "id": 5,
           "name": "<() as std::process::Termination>::report"
         }
       },
@@ -2490,7 +1338,7 @@
                             "Use": {
                               "Constant": {
                                 "const_": {
-                                  "id": 18,
+                                  "id": 11,
                                   "kind": {
                                     "Allocated": {
                                       "align": 4,
@@ -2508,14 +1356,14 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 95,
+                                "span": 50,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 95
+                      "span": 50
                     },
                     {
                       "kind": {
@@ -2530,7 +1378,7 @@
                               {
                                 "Constant": {
                                   "const_": {
-                                    "id": 16,
+                                    "id": 9,
                                     "kind": {
                                       "Allocated": {
                                         "align": 4,
@@ -2548,14 +1396,14 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 92,
+                                  "span": 47,
                                   "user_ty": null
                                 }
                               },
                               {
                                 "Constant": {
                                   "const_": {
-                                    "id": 17,
+                                    "id": 10,
                                     "kind": {
                                       "Allocated": {
                                         "align": 4,
@@ -2573,7 +1421,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 93,
+                                  "span": 48,
                                   "user_ty": null
                                 }
                               }
@@ -2581,7 +1429,7 @@
                           }
                         ]
                       },
-                      "span": 94
+                      "span": 49
                     }
                   ],
                   "terminator": {
@@ -2594,7 +1442,7 @@
                               {
                                 "Field": [
                                   1,
-                                  40
+                                  24
                                 ]
                               }
                             ]
@@ -2607,7 +1455,7 @@
                             {
                               "Constant": {
                                 "const_": {
-                                  "id": 16,
+                                  "id": 9,
                                   "kind": {
                                     "Allocated": {
                                       "align": 4,
@@ -2625,14 +1473,14 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 92,
+                                "span": 47,
                                 "user_ty": null
                               }
                             },
                             {
                               "Constant": {
                                 "const_": {
-                                  "id": 17,
+                                  "id": 10,
                                   "kind": {
                                     "Allocated": {
                                       "align": 4,
@@ -2650,7 +1498,7 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 93,
+                                "span": 48,
                                 "user_ty": null
                               }
                             }
@@ -2660,7 +1508,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 94
+                    "span": 49
                   }
                 },
                 {
@@ -2689,7 +1537,7 @@
                           }
                         ]
                       },
-                      "span": 94
+                      "span": 49
                     },
                     {
                       "kind": {
@@ -2712,7 +1560,7 @@
                           }
                         ]
                       },
-                      "span": 97
+                      "span": 52
                     },
                     {
                       "kind": {
@@ -2735,7 +1583,7 @@
                           }
                         ]
                       },
-                      "span": 98
+                      "span": 53
                     },
                     {
                       "kind": {
@@ -2765,7 +1613,7 @@
                           }
                         ]
                       },
-                      "span": 99
+                      "span": 54
                     },
                     {
                       "kind": {
@@ -2791,7 +1639,7 @@
                           }
                         ]
                       },
-                      "span": 100
+                      "span": 55
                     },
                     {
                       "kind": {
@@ -2817,7 +1665,7 @@
                           }
                         ]
                       },
-                      "span": 101
+                      "span": 56
                     },
                     {
                       "kind": {
@@ -2838,7 +1686,7 @@
                           }
                         ]
                       },
-                      "span": 102
+                      "span": 57
                     },
                     {
                       "kind": {
@@ -2859,7 +1707,7 @@
                           }
                         ]
                       },
-                      "span": 103
+                      "span": 58
                     },
                     {
                       "kind": {
@@ -2887,7 +1735,7 @@
                           }
                         ]
                       },
-                      "span": 96
+                      "span": 51
                     }
                   ],
                   "terminator": {
@@ -2910,14 +1758,14 @@
                         }
                       }
                     },
-                    "span": 96
+                    "span": 51
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 104
+                    "span": 59
                   }
                 },
                 {
@@ -2933,7 +1781,7 @@
                             "Aggregate": [
                               {
                                 "Adt": [
-                                  10,
+                                  7,
                                   0,
                                   [],
                                   null,
@@ -2945,7 +1793,7 @@
                           }
                         ]
                       },
-                      "span": 107
+                      "span": 62
                     },
                     {
                       "kind": {
@@ -2958,11 +1806,11 @@
                             "Aggregate": [
                               {
                                 "Adt": [
-                                  11,
+                                  8,
                                   0,
                                   [
                                     {
-                                      "Type": 42
+                                      "Type": 27
                                     }
                                   ],
                                   null,
@@ -2974,7 +1822,7 @@
                           }
                         ]
                       },
-                      "span": 108
+                      "span": 63
                     }
                   ],
                   "terminator": {
@@ -3013,11 +1861,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 19,
+                              "id": 12,
                               "kind": "ZeroSized",
-                              "ty": 41
+                              "ty": 26
                             },
-                            "span": 105,
+                            "span": 60,
                             "user_ty": null
                           }
                         },
@@ -3025,88 +1873,88 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 106
+                    "span": 61
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 109,
+                  "span": 64,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 110,
+                  "span": 65,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 111,
+                  "span": 66,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 94,
-                  "ty": 43
+                  "span": 49,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
-                  "span": 99,
-                  "ty": 44
+                  "span": 54,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 97,
+                  "span": 52,
                   "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 98,
+                  "span": 53,
                   "ty": 25
                 },
                 {
                   "mutability": "Not",
-                  "span": 100,
+                  "span": 55,
                   "ty": 25
                 },
                 {
                   "mutability": "Not",
-                  "span": 101,
+                  "span": 56,
                   "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 96,
-                  "ty": 40
+                  "span": 51,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 102,
+                  "span": 57,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 103,
+                  "span": 58,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 112,
-                  "ty": 38
+                  "span": 67,
+                  "ty": 30
                 },
                 {
                   "mutability": "Not",
-                  "span": 106,
-                  "ty": 37
+                  "span": 61,
+                  "ty": 31
                 },
                 {
                   "mutability": "Mut",
-                  "span": 108,
-                  "ty": 39
+                  "span": 63,
+                  "ty": 32
                 }
               ],
-              "span": 113,
+              "span": 68,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -3115,7 +1963,7 @@
                   "name": "a",
                   "source_info": {
                     "scope": 1,
-                    "span": 110
+                    "span": 65
                   },
                   "value": {
                     "Place": {
@@ -3130,7 +1978,7 @@
                   "name": "b",
                   "source_info": {
                     "scope": 2,
-                    "span": 111
+                    "span": 66
                   },
                   "value": {
                     "Place": {
@@ -3145,7 +1993,7 @@
                   "name": "left_val",
                   "source_info": {
                     "scope": 3,
-                    "span": 100
+                    "span": 55
                   },
                   "value": {
                     "Place": {
@@ -3160,7 +2008,7 @@
                   "name": "right_val",
                   "source_info": {
                     "scope": 3,
-                    "span": 101
+                    "span": 56
                   },
                   "value": {
                     "Place": {
@@ -3175,7 +2023,7 @@
                   "name": "kind",
                   "source_info": {
                     "scope": 4,
-                    "span": 112
+                    "span": 67
                   },
                   "value": {
                     "Place": {
@@ -3187,7 +2035,7 @@
               ]
             }
           ],
-          "id": 9,
+          "id": 6,
           "name": "main"
         }
       },
diff --git a/tests/integration/programs/binop.smir.json.expected b/tests/integration/programs/binop.smir.json.expected
index 0578aac..05ded48 100644
--- a/tests/integration/programs/binop.smir.json.expected
+++ b/tests/integration/programs/binop.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
     [
-      0,
       {
         "Memory": {
           "align": 1,
@@ -44,7 +43,6 @@
       }
     ],
     [
-      1,
       {
         "Memory": {
           "align": 1,
@@ -87,7 +85,6 @@
       }
     ],
     [
-      2,
       {
         "Memory": {
           "align": 1,
@@ -133,7 +130,6 @@
       }
     ],
     [
-      3,
       {
         "Memory": {
           "align": 1,
@@ -176,7 +172,6 @@
       }
     ],
     [
-      4,
       {
         "Memory": {
           "align": 1,
@@ -220,7 +215,6 @@
       }
     ],
     [
-      5,
       {
         "Memory": {
           "align": 1,
@@ -266,7 +260,6 @@
       }
     ],
     [
-      6,
       {
         "Memory": {
           "align": 1,
@@ -310,7 +303,6 @@
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     [
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       {
         "Memory": {
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@@ -356,7 +348,6 @@
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     [
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@@ -402,7 +393,6 @@
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@@ -448,7 +438,6 @@
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     [
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@@ -490,7 +479,6 @@
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     ],
     [
-      11,
       {
         "Memory": {
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@@ -532,7 +520,6 @@
       }
     ],
     [
-      12,
       {
         "Memory": {
           "align": 1,
@@ -574,7 +561,6 @@
       }
     ],
     [
-      13,
       {
         "Memory": {
           "align": 1,
@@ -616,7 +602,6 @@
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     ],
     [
-      14,
       {
         "Memory": {
           "align": 1,
@@ -658,7 +643,6 @@
       }
     ],
     [
-      15,
       {
         "Memory": {
           "align": 1,
@@ -700,7 +684,6 @@
       }
     ],
     [
-      16,
       {
         "Memory": {
           "align": 1,
@@ -743,7 +726,6 @@
       }
     ],
     [
-      17,
       {
         "Memory": {
           "align": 1,
@@ -786,7 +768,6 @@
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     ],
     [
-      18,
       {
         "Memory": {
           "align": 1,
@@ -829,7 +810,6 @@
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     ],
     [
-      19,
       {
         "Memory": {
           "align": 1,
@@ -872,7 +852,6 @@
       }
     ],
     [
-      20,
       {
         "Memory": {
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                       },
-                      "span": 50
+                      "span": 47
                     }
                   ],
                   "terminator": {
@@ -2686,7 +2555,7 @@
                         }
                       }
                     },
-                    "span": 51
+                    "span": 48
                   }
                 },
                 {
@@ -2717,7 +2586,7 @@
                           }
                         ]
                       },
-                      "span": 52
+                      "span": 49
                     }
                   ],
                   "terminator": {
@@ -2730,7 +2599,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -2758,7 +2627,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 52
+                    "span": 49
                   }
                 },
                 {
@@ -2803,9 +2672,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -2819,9 +2688,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 53,
+                            "span": 50,
                             "user_ty": null
                           }
                         },
@@ -2829,7 +2698,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 53
+                    "span": 50
                   }
                 },
                 {
@@ -2858,7 +2727,7 @@
                           }
                         ]
                       },
-                      "span": 52
+                      "span": 49
                     }
                   ],
                   "terminator": {
@@ -2881,7 +2750,7 @@
                         }
                       }
                     },
-                    "span": 54
+                    "span": 51
                   }
                 },
                 {
@@ -2912,7 +2781,7 @@
                           }
                         ]
                       },
-                      "span": 55
+                      "span": 52
                     }
                   ],
                   "terminator": {
@@ -2925,7 +2794,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -2953,7 +2822,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 55
+                    "span": 52
                   }
                 },
                 {
@@ -2998,9 +2867,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -3014,9 +2883,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 56,
+                            "span": 53,
                             "user_ty": null
                           }
                         },
@@ -3024,7 +2893,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 56
+                    "span": 53
                   }
                 },
                 {
@@ -3053,7 +2922,7 @@
                           }
                         ]
                       },
-                      "span": 55
+                      "span": 52
                     },
                     {
                       "kind": {
@@ -3081,7 +2950,7 @@
                           }
                         ]
                       },
-                      "span": 57
+                      "span": 54
                     }
                   ],
                   "terminator": {
@@ -3094,7 +2963,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -3122,7 +2991,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 57
+                    "span": 54
                   }
                 },
                 {
@@ -3151,7 +3020,7 @@
                           }
                         ]
                       },
-                      "span": 57
+                      "span": 54
                     },
                     {
                       "kind": {
@@ -3179,7 +3048,7 @@
                           }
                         ]
                       },
-                      "span": 58
+                      "span": 55
                     }
                   ],
                   "terminator": {
@@ -3202,7 +3071,7 @@
                         }
                       }
                     },
-                    "span": 58
+                    "span": 55
                   }
                 },
                 {
@@ -3233,7 +3102,7 @@
                           }
                         ]
                       },
-                      "span": 59
+                      "span": 56
                     }
                   ],
                   "terminator": {
@@ -3246,7 +3115,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -3274,7 +3143,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 59
+                    "span": 56
                   }
                 },
                 {
@@ -3319,9 +3188,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -3335,9 +3204,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 60,
+                            "span": 57,
                             "user_ty": null
                           }
                         },
@@ -3345,7 +3214,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 60
+                    "span": 57
                   }
                 },
                 {
@@ -3374,7 +3243,7 @@
                           }
                         ]
                       },
-                      "span": 59
+                      "span": 56
                     }
                   ],
                   "terminator": {
@@ -3397,7 +3266,7 @@
                         }
                       }
                     },
-                    "span": 61
+                    "span": 58
                   }
                 },
                 {
@@ -3428,7 +3297,7 @@
                           }
                         ]
                       },
-                      "span": 62
+                      "span": 59
                     }
                   ],
                   "terminator": {
@@ -3441,7 +3310,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -3469,7 +3338,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 62
+                    "span": 59
                   }
                 },
                 {
@@ -3514,9 +3383,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -3530,9 +3399,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 63,
+                            "span": 60,
                             "user_ty": null
                           }
                         },
@@ -3540,7 +3409,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 63
+                    "span": 60
                   }
                 },
                 {
@@ -3569,7 +3438,7 @@
                           }
                         ]
                       },
-                      "span": 62
+                      "span": 59
                     }
                   ],
                   "terminator": {
@@ -3592,7 +3461,7 @@
                         }
                       }
                     },
-                    "span": 64
+                    "span": 61
                   }
                 },
                 {
@@ -3623,7 +3492,7 @@
                           }
                         ]
                       },
-                      "span": 65
+                      "span": 62
                     }
                   ],
                   "terminator": {
@@ -3636,7 +3505,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -3664,7 +3533,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 65
+                    "span": 62
                   }
                 },
                 {
@@ -3709,9 +3578,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -3725,9 +3594,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 66,
+                            "span": 63,
                             "user_ty": null
                           }
                         },
@@ -3735,7 +3604,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 66
+                    "span": 63
                   }
                 },
                 {
@@ -3764,7 +3633,7 @@
                           }
                         ]
                       },
-                      "span": 65
+                      "span": 62
                     },
                     {
                       "kind": {
@@ -3792,7 +3661,7 @@
                           }
                         ]
                       },
-                      "span": 67
+                      "span": 64
                     }
                   ],
                   "terminator": {
@@ -3805,7 +3674,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -3833,7 +3702,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 67
+                    "span": 64
                   }
                 },
                 {
@@ -3862,7 +3731,7 @@
                           }
                         ]
                       },
-                      "span": 67
+                      "span": 64
                     },
                     {
                       "kind": {
@@ -3890,7 +3759,7 @@
                           }
                         ]
                       },
-                      "span": 68
+                      "span": 65
                     }
                   ],
                   "terminator": {
@@ -3913,7 +3782,7 @@
                         }
                       }
                     },
-                    "span": 68
+                    "span": 65
                   }
                 },
                 {
@@ -3944,7 +3813,7 @@
                           }
                         ]
                       },
-                      "span": 69
+                      "span": 66
                     }
                   ],
                   "terminator": {
@@ -3957,7 +3826,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -3985,7 +3854,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 69
+                    "span": 66
                   }
                 },
                 {
@@ -4030,9 +3899,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -4046,9 +3915,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 70,
+                            "span": 67,
                             "user_ty": null
                           }
                         },
@@ -4056,7 +3925,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 70
+                    "span": 67
                   }
                 },
                 {
@@ -4085,7 +3954,7 @@
                           }
                         ]
                       },
-                      "span": 69
+                      "span": 66
                     }
                   ],
                   "terminator": {
@@ -4108,7 +3977,7 @@
                         }
                       }
                     },
-                    "span": 71
+                    "span": 68
                   }
                 },
                 {
@@ -4150,7 +4019,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 72,
+                                  "span": 69,
                                   "user_ty": null
                                 }
                               }
@@ -4158,7 +4027,7 @@
                           }
                         ]
                       },
-                      "span": 72
+                      "span": 69
                     }
                   ],
                   "terminator": {
@@ -4183,7 +4052,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 72
+                    "span": 69
                   }
                 },
                 {
@@ -4228,9 +4097,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -4244,9 +4113,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 73,
+                            "span": 70,
                             "user_ty": null
                           }
                         },
@@ -4254,7 +4123,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 73
+                    "span": 70
                   }
                 },
                 {
@@ -4279,7 +4148,7 @@
                           }
                         ]
                       },
-                      "span": 72
+                      "span": 69
                     },
                     {
                       "kind": {
@@ -4307,7 +4176,7 @@
                           }
                         ]
                       },
-                      "span": 74
+                      "span": 71
                     }
                   ],
                   "terminator": {
@@ -4320,7 +4189,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -4348,7 +4217,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 74
+                    "span": 71
                   }
                 },
                 {
@@ -4377,7 +4246,7 @@
                           }
                         ]
                       },
-                      "span": 74
+                      "span": 71
                     }
                   ],
                   "terminator": {
@@ -4400,7 +4269,7 @@
                         }
                       }
                     },
-                    "span": 75
+                    "span": 72
                   }
                 },
                 {
@@ -4442,7 +4311,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 76,
+                                  "span": 73,
                                   "user_ty": null
                                 }
                               }
@@ -4450,7 +4319,7 @@
                           }
                         ]
                       },
-                      "span": 76
+                      "span": 73
                     }
                   ],
                   "terminator": {
@@ -4475,7 +4344,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 76
+                    "span": 73
                   }
                 },
                 {
@@ -4520,9 +4389,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -4536,9 +4405,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 77,
+                            "span": 74,
                             "user_ty": null
                           }
                         },
@@ -4546,7 +4415,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 77
+                    "span": 74
                   }
                 },
                 {
@@ -4571,7 +4440,7 @@
                           }
                         ]
                       },
-                      "span": 76
+                      "span": 73
                     },
                     {
                       "kind": {
@@ -4599,7 +4468,7 @@
                           }
                         ]
                       },
-                      "span": 78
+                      "span": 75
                     }
                   ],
                   "terminator": {
@@ -4612,7 +4481,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -4640,7 +4509,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 78
+                    "span": 75
                   }
                 },
                 {
@@ -4669,7 +4538,7 @@
                           }
                         ]
                       },
-                      "span": 78
+                      "span": 75
                     }
                   ],
                   "terminator": {
@@ -4692,7 +4561,7 @@
                         }
                       }
                     },
-                    "span": 79
+                    "span": 76
                   }
                 },
                 {
@@ -4734,7 +4603,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 80,
+                                  "span": 77,
                                   "user_ty": null
                                 }
                               }
@@ -4742,7 +4611,7 @@
                           }
                         ]
                       },
-                      "span": 80
+                      "span": 77
                     }
                   ],
                   "terminator": {
@@ -4767,7 +4636,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 80
+                    "span": 77
                   }
                 },
                 {
@@ -4812,9 +4681,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -4828,9 +4697,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 81,
+                            "span": 78,
                             "user_ty": null
                           }
                         },
@@ -4838,7 +4707,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 81
+                    "span": 78
                   }
                 },
                 {
@@ -4863,7 +4732,7 @@
                           }
                         ]
                       },
-                      "span": 80
+                      "span": 77
                     },
                     {
                       "kind": {
@@ -4902,7 +4771,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 82,
+                                  "span": 79,
                                   "user_ty": null
                                 }
                               }
@@ -4910,7 +4779,7 @@
                           }
                         ]
                       },
-                      "span": 82
+                      "span": 79
                     }
                   ],
                   "terminator": {
@@ -4935,7 +4804,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 82
+                    "span": 79
                   }
                 },
                 {
@@ -4960,7 +4829,7 @@
                           }
                         ]
                       },
-                      "span": 82
+                      "span": 79
                     },
                     {
                       "kind": {
@@ -4988,7 +4857,7 @@
                           }
                         ]
                       },
-                      "span": 83
+                      "span": 80
                     }
                   ],
                   "terminator": {
@@ -5001,7 +4870,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -5029,7 +4898,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 83
+                    "span": 80
                   }
                 },
                 {
@@ -5058,7 +4927,7 @@
                           }
                         ]
                       },
-                      "span": 83
+                      "span": 80
                     }
                   ],
                   "terminator": {
@@ -5081,7 +4950,7 @@
                         }
                       }
                     },
-                    "span": 84
+                    "span": 81
                   }
                 },
                 {
@@ -5117,7 +4986,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 86,
+                                  "span": 83,
                                   "user_ty": null
                                 }
                               },
@@ -5142,7 +5011,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 87,
+                                  "span": 84,
                                   "user_ty": null
                                 }
                               }
@@ -5150,7 +5019,7 @@
                           }
                         ]
                       },
-                      "span": 88
+                      "span": 85
                     }
                   ],
                   "terminator": {
@@ -5173,7 +5042,7 @@
                         }
                       }
                     },
-                    "span": 85
+                    "span": 82
                   }
                 },
                 {
@@ -5218,9 +5087,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -5234,9 +5103,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 89,
+                            "span": 86,
                             "user_ty": null
                           }
                         },
@@ -5244,7 +5113,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 89
+                    "span": 86
                   }
                 },
                 {
@@ -5280,7 +5149,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 91,
+                                  "span": 88,
                                   "user_ty": null
                                 }
                               },
@@ -5305,7 +5174,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 92,
+                                  "span": 89,
                                   "user_ty": null
                                 }
                               }
@@ -5313,7 +5182,7 @@
                           }
                         ]
                       },
-                      "span": 93
+                      "span": 90
                     }
                   ],
                   "terminator": {
@@ -5336,7 +5205,7 @@
                         }
                       }
                     },
-                    "span": 90
+                    "span": 87
                   }
                 },
                 {
@@ -5381,9 +5250,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -5397,9 +5266,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 94,
+                            "span": 91,
                             "user_ty": null
                           }
                         },
@@ -5407,7 +5276,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 94
+                    "span": 91
                   }
                 },
                 {
@@ -5443,7 +5312,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 96,
+                                  "span": 93,
                                   "user_ty": null
                                 }
                               },
@@ -5468,7 +5337,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 97,
+                                  "span": 94,
                                   "user_ty": null
                                 }
                               }
@@ -5476,7 +5345,7 @@
                           }
                         ]
                       },
-                      "span": 98
+                      "span": 95
                     }
                   ],
                   "terminator": {
@@ -5499,7 +5368,7 @@
                         }
                       }
                     },
-                    "span": 95
+                    "span": 92
                   }
                 },
                 {
@@ -5544,9 +5413,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -5560,9 +5429,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 99,
+                            "span": 96,
                             "user_ty": null
                           }
                         },
@@ -5570,7 +5439,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 99
+                    "span": 96
                   }
                 },
                 {
@@ -5606,7 +5475,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 101,
+                                  "span": 98,
                                   "user_ty": null
                                 }
                               },
@@ -5631,7 +5500,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 102,
+                                  "span": 99,
                                   "user_ty": null
                                 }
                               }
@@ -5639,7 +5508,7 @@
                           }
                         ]
                       },
-                      "span": 103
+                      "span": 100
                     }
                   ],
                   "terminator": {
@@ -5662,7 +5531,7 @@
                         }
                       }
                     },
-                    "span": 100
+                    "span": 97
                   }
                 },
                 {
@@ -5707,9 +5576,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -5723,9 +5592,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 104,
+                            "span": 101,
                             "user_ty": null
                           }
                         },
@@ -5733,7 +5602,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 104
+                    "span": 101
                   }
                 },
                 {
@@ -5769,7 +5638,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 106,
+                                  "span": 103,
                                   "user_ty": null
                                 }
                               },
@@ -5794,7 +5663,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 107,
+                                  "span": 104,
                                   "user_ty": null
                                 }
                               }
@@ -5802,7 +5671,7 @@
                           }
                         ]
                       },
-                      "span": 108
+                      "span": 105
                     }
                   ],
                   "terminator": {
@@ -5825,7 +5694,7 @@
                         }
                       }
                     },
-                    "span": 105
+                    "span": 102
                   }
                 },
                 {
@@ -5870,9 +5739,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -5886,9 +5755,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 109,
+                            "span": 106,
                             "user_ty": null
                           }
                         },
@@ -5896,7 +5765,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 109
+                    "span": 106
                   }
                 },
                 {
@@ -5932,7 +5801,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 111,
+                                  "span": 108,
                                   "user_ty": null
                                 }
                               },
@@ -5957,7 +5826,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 112,
+                                  "span": 109,
                                   "user_ty": null
                                 }
                               }
@@ -5965,7 +5834,7 @@
                           }
                         ]
                       },
-                      "span": 113
+                      "span": 110
                     }
                   ],
                   "terminator": {
@@ -5988,7 +5857,7 @@
                         }
                       }
                     },
-                    "span": 110
+                    "span": 107
                   }
                 },
                 {
@@ -6033,9 +5902,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -6049,9 +5918,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 114,
+                            "span": 111,
                             "user_ty": null
                           }
                         },
@@ -6059,7 +5928,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 114
+                    "span": 111
                   }
                 },
                 {
@@ -6095,16 +5964,16 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 116,
+                                  "span": 113,
                                   "user_ty": null
                                 }
                               },
-                              28
+                              27
                             ]
                           }
                         ]
                       },
-                      "span": 117
+                      "span": 114
                     },
                     {
                       "kind": {
@@ -6141,9 +6010,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 28
+                                    "ty": 27
                                   },
-                                  "span": 117,
+                                  "span": 114,
                                   "user_ty": null
                                 }
                               }
@@ -6151,7 +6020,7 @@
                           }
                         ]
                       },
-                      "span": 117
+                      "span": 114
                     }
                   ],
                   "terminator": {
@@ -6188,7 +6057,7 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 115,
+                                "span": 112,
                                 "user_ty": null
                               }
                             },
@@ -6213,7 +6082,7 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 116,
+                                "span": 113,
                                 "user_ty": null
                               }
                             }
@@ -6223,7 +6092,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 117
+                    "span": 114
                   }
                 },
                 {
@@ -6268,9 +6137,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -6284,9 +6153,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 118,
+                            "span": 115,
                             "user_ty": null
                           }
                         },
@@ -6294,7 +6163,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 118
+                    "span": 115
                   }
                 },
                 {
@@ -6330,7 +6199,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 115,
+                                  "span": 112,
                                   "user_ty": null
                                 }
                               },
@@ -6355,7 +6224,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 116,
+                                  "span": 113,
                                   "user_ty": null
                                 }
                               }
@@ -6363,7 +6232,7 @@
                           }
                         ]
                       },
-                      "span": 117
+                      "span": 114
                     }
                   ],
                   "terminator": {
@@ -6386,7 +6255,7 @@
                         }
                       }
                     },
-                    "span": 119
+                    "span": 116
                   }
                 },
                 {
@@ -6422,16 +6291,16 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 121,
+                                  "span": 118,
                                   "user_ty": null
                                 }
                               },
-                              28
+                              27
                             ]
                           }
                         ]
                       },
-                      "span": 122
+                      "span": 119
                     },
                     {
                       "kind": {
@@ -6468,9 +6337,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 28
+                                    "ty": 27
                                   },
-                                  "span": 122,
+                                  "span": 119,
                                   "user_ty": null
                                 }
                               }
@@ -6478,7 +6347,7 @@
                           }
                         ]
                       },
-                      "span": 122
+                      "span": 119
                     }
                   ],
                   "terminator": {
@@ -6515,7 +6384,7 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 120,
+                                "span": 117,
                                 "user_ty": null
                               }
                             },
@@ -6540,7 +6409,7 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 121,
+                                "span": 118,
                                 "user_ty": null
                               }
                             }
@@ -6550,7 +6419,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 122
+                    "span": 119
                   }
                 },
                 {
@@ -6595,9 +6464,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -6611,9 +6480,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 123,
+                            "span": 120,
                             "user_ty": null
                           }
                         },
@@ -6621,7 +6490,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 123
+                    "span": 120
                   }
                 },
                 {
@@ -6657,7 +6526,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 120,
+                                  "span": 117,
                                   "user_ty": null
                                 }
                               },
@@ -6682,7 +6551,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 121,
+                                  "span": 118,
                                   "user_ty": null
                                 }
                               }
@@ -6690,7 +6559,7 @@
                           }
                         ]
                       },
-                      "span": 122
+                      "span": 119
                     }
                   ],
                   "terminator": {
@@ -6713,7 +6582,7 @@
                         }
                       }
                     },
-                    "span": 124
+                    "span": 121
                   }
                 },
                 {
@@ -6749,16 +6618,16 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 126,
+                                  "span": 123,
                                   "user_ty": null
                                 }
                               },
-                              28
+                              27
                             ]
                           }
                         ]
                       },
-                      "span": 127
+                      "span": 124
                     },
                     {
                       "kind": {
@@ -6795,9 +6664,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 28
+                                    "ty": 27
                                   },
-                                  "span": 127,
+                                  "span": 124,
                                   "user_ty": null
                                 }
                               }
@@ -6805,7 +6674,7 @@
                           }
                         ]
                       },
-                      "span": 127
+                      "span": 124
                     }
                   ],
                   "terminator": {
@@ -6842,7 +6711,7 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 125,
+                                "span": 122,
                                 "user_ty": null
                               }
                             },
@@ -6867,7 +6736,7 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 126,
+                                "span": 123,
                                 "user_ty": null
                               }
                             }
@@ -6877,7 +6746,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 127
+                    "span": 124
                   }
                 },
                 {
@@ -6922,9 +6791,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -6938,9 +6807,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 128,
+                            "span": 125,
                             "user_ty": null
                           }
                         },
@@ -6948,7 +6817,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 128
+                    "span": 125
                   }
                 },
                 {
@@ -6984,7 +6853,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 125,
+                                  "span": 122,
                                   "user_ty": null
                                 }
                               },
@@ -7009,7 +6878,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 126,
+                                  "span": 123,
                                   "user_ty": null
                                 }
                               }
@@ -7017,7 +6886,7 @@
                           }
                         ]
                       },
-                      "span": 127
+                      "span": 124
                     }
                   ],
                   "terminator": {
@@ -7040,7 +6909,7 @@
                         }
                       }
                     },
-                    "span": 129
+                    "span": 126
                   }
                 },
                 {
@@ -7076,16 +6945,16 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 131,
+                                  "span": 128,
                                   "user_ty": null
                                 }
                               },
-                              28
+                              27
                             ]
                           }
                         ]
                       },
-                      "span": 132
+                      "span": 129
                     },
                     {
                       "kind": {
@@ -7122,9 +6991,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 28
+                                    "ty": 27
                                   },
-                                  "span": 132,
+                                  "span": 129,
                                   "user_ty": null
                                 }
                               }
@@ -7132,7 +7001,7 @@
                           }
                         ]
                       },
-                      "span": 132
+                      "span": 129
                     }
                   ],
                   "terminator": {
@@ -7169,7 +7038,7 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 130,
+                                "span": 127,
                                 "user_ty": null
                               }
                             },
@@ -7194,7 +7063,7 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 131,
+                                "span": 128,
                                 "user_ty": null
                               }
                             }
@@ -7204,7 +7073,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 132
+                    "span": 129
                   }
                 },
                 {
@@ -7249,9 +7118,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -7265,9 +7134,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 133,
+                            "span": 130,
                             "user_ty": null
                           }
                         },
@@ -7275,7 +7144,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 133
+                    "span": 130
                   }
                 },
                 {
@@ -7311,7 +7180,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 130,
+                                  "span": 127,
                                   "user_ty": null
                                 }
                               },
@@ -7336,7 +7205,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 131,
+                                  "span": 128,
                                   "user_ty": null
                                 }
                               }
@@ -7344,7 +7213,7 @@
                           }
                         ]
                       },
-                      "span": 132
+                      "span": 129
                     }
                   ],
                   "terminator": {
@@ -7367,7 +7236,7 @@
                         }
                       }
                     },
-                    "span": 134
+                    "span": 131
                   }
                 },
                 {
@@ -7398,7 +7267,7 @@
                           }
                         ]
                       },
-                      "span": 135
+                      "span": 132
                     }
                   ],
                   "terminator": {
@@ -7411,7 +7280,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -7439,7 +7308,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 135
+                    "span": 132
                   }
                 },
                 {
@@ -7484,9 +7353,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -7500,9 +7369,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 136,
+                            "span": 133,
                             "user_ty": null
                           }
                         },
@@ -7510,7 +7379,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 136
+                    "span": 133
                   }
                 },
                 {
@@ -7539,7 +7408,7 @@
                           }
                         ]
                       },
-                      "span": 135
+                      "span": 132
                     },
                     {
                       "kind": {
@@ -7567,7 +7436,7 @@
                           }
                         ]
                       },
-                      "span": 137
+                      "span": 134
                     }
                   ],
                   "terminator": {
@@ -7590,7 +7459,7 @@
                         }
                       }
                     },
-                    "span": 137
+                    "span": 134
                   }
                 },
                 {
@@ -7621,7 +7490,7 @@
                           }
                         ]
                       },
-                      "span": 138
+                      "span": 135
                     }
                   ],
                   "terminator": {
@@ -7634,7 +7503,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -7662,7 +7531,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 138
+                    "span": 135
                   }
                 },
                 {
@@ -7707,9 +7576,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -7723,9 +7592,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 139,
+                            "span": 136,
                             "user_ty": null
                           }
                         },
@@ -7733,7 +7602,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 139
+                    "span": 136
                   }
                 },
                 {
@@ -7762,7 +7631,7 @@
                           }
                         ]
                       },
-                      "span": 138
+                      "span": 135
                     },
                     {
                       "kind": {
@@ -7790,7 +7659,7 @@
                           }
                         ]
                       },
-                      "span": 140
+                      "span": 137
                     }
                   ],
                   "terminator": {
@@ -7813,7 +7682,7 @@
                         }
                       }
                     },
-                    "span": 140
+                    "span": 137
                   }
                 },
                 {
@@ -7844,7 +7713,7 @@
                           }
                         ]
                       },
-                      "span": 141
+                      "span": 138
                     }
                   ],
                   "terminator": {
@@ -7857,7 +7726,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -7885,7 +7754,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 141
+                    "span": 138
                   }
                 },
                 {
@@ -7930,9 +7799,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -7946,9 +7815,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 142,
+                            "span": 139,
                             "user_ty": null
                           }
                         },
@@ -7956,7 +7825,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 142
+                    "span": 139
                   }
                 },
                 {
@@ -7985,7 +7854,7 @@
                           }
                         ]
                       },
-                      "span": 141
+                      "span": 138
                     },
                     {
                       "kind": {
@@ -8013,7 +7882,7 @@
                           }
                         ]
                       },
-                      "span": 143
+                      "span": 140
                     }
                   ],
                   "terminator": {
@@ -8026,7 +7895,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -8054,7 +7923,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 143
+                    "span": 140
                   }
                 },
                 {
@@ -8083,7 +7952,7 @@
                           }
                         ]
                       },
-                      "span": 143
+                      "span": 140
                     },
                     {
                       "kind": {
@@ -8111,7 +7980,7 @@
                           }
                         ]
                       },
-                      "span": 144
+                      "span": 141
                     }
                   ],
                   "terminator": {
@@ -8134,7 +8003,7 @@
                         }
                       }
                     },
-                    "span": 144
+                    "span": 141
                   }
                 },
                 {
@@ -8165,7 +8034,7 @@
                           }
                         ]
                       },
-                      "span": 145
+                      "span": 142
                     }
                   ],
                   "terminator": {
@@ -8178,7 +8047,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -8206,7 +8075,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 145
+                    "span": 142
                   }
                 },
                 {
@@ -8251,9 +8120,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -8267,9 +8136,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 146,
+                            "span": 143,
                             "user_ty": null
                           }
                         },
@@ -8277,7 +8146,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 146
+                    "span": 143
                   }
                 },
                 {
@@ -8306,7 +8175,7 @@
                           }
                         ]
                       },
-                      "span": 145
+                      "span": 142
                     },
                     {
                       "kind": {
@@ -8334,7 +8203,7 @@
                           }
                         ]
                       },
-                      "span": 147
+                      "span": 144
                     }
                   ],
                   "terminator": {
@@ -8357,7 +8226,7 @@
                         }
                       }
                     },
-                    "span": 147
+                    "span": 144
                   }
                 },
                 {
@@ -8388,7 +8257,7 @@
                           }
                         ]
                       },
-                      "span": 148
+                      "span": 145
                     }
                   ],
                   "terminator": {
@@ -8401,7 +8270,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -8429,7 +8298,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 148
+                    "span": 145
                   }
                 },
                 {
@@ -8474,9 +8343,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -8490,9 +8359,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 149,
+                            "span": 146,
                             "user_ty": null
                           }
                         },
@@ -8500,7 +8369,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 149
+                    "span": 146
                   }
                 },
                 {
@@ -8529,7 +8398,7 @@
                           }
                         ]
                       },
-                      "span": 148
+                      "span": 145
                     },
                     {
                       "kind": {
@@ -8557,7 +8426,7 @@
                           }
                         ]
                       },
-                      "span": 150
+                      "span": 147
                     }
                   ],
                   "terminator": {
@@ -8580,7 +8449,7 @@
                         }
                       }
                     },
-                    "span": 150
+                    "span": 147
                   }
                 },
                 {
@@ -8611,7 +8480,7 @@
                           }
                         ]
                       },
-                      "span": 151
+                      "span": 148
                     }
                   ],
                   "terminator": {
@@ -8624,7 +8493,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -8652,7 +8521,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 151
+                    "span": 148
                   }
                 },
                 {
@@ -8697,9 +8566,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -8713,9 +8582,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 152,
+                            "span": 149,
                             "user_ty": null
                           }
                         },
@@ -8723,7 +8592,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 152
+                    "span": 149
                   }
                 },
                 {
@@ -8752,7 +8621,7 @@
                           }
                         ]
                       },
-                      "span": 151
+                      "span": 148
                     },
                     {
                       "kind": {
@@ -8780,7 +8649,7 @@
                           }
                         ]
                       },
-                      "span": 153
+                      "span": 150
                     }
                   ],
                   "terminator": {
@@ -8793,7 +8662,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -8821,7 +8690,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 153
+                    "span": 150
                   }
                 },
                 {
@@ -8850,7 +8719,7 @@
                           }
                         ]
                       },
-                      "span": 153
+                      "span": 150
                     },
                     {
                       "kind": {
@@ -8878,7 +8747,7 @@
                           }
                         ]
                       },
-                      "span": 154
+                      "span": 151
                     }
                   ],
                   "terminator": {
@@ -8901,14 +8770,14 @@
                         }
                       }
                     },
-                    "span": 154
+                    "span": 151
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 155
+                    "span": 152
                   }
                 },
                 {
@@ -8953,9 +8822,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -8969,9 +8838,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 156,
+                            "span": 153,
                             "user_ty": null
                           }
                         },
@@ -8979,31 +8848,36 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 156
+                    "span": 153
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 157,
+                  "span": 154,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 158,
+                  "span": 155,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 159,
+                  "span": 156,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 50,
+                  "span": 47,
                   "ty": 16
                 },
+                {
+                  "mutability": "Mut",
+                  "span": 47,
+                  "ty": 28
+                },
                 {
                   "mutability": "Mut",
                   "span": 50,
@@ -9011,53 +8885,63 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 53,
-                  "ty": 30
+                  "span": 49,
+                  "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 52,
-                  "ty": 16
+                  "span": 49,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
-                  "span": 52,
+                  "span": 53,
                   "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 56,
-                  "ty": 30
+                  "span": 55,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 58,
-                  "ty": 25
+                  "span": 52,
+                  "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 55,
+                  "span": 52,
+                  "ty": 28
+                },
+                {
+                  "mutability": "Mut",
+                  "span": 54,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 55,
-                  "ty": 29
+                  "span": 54,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
                   "span": 57,
+                  "ty": 29
+                },
+                {
+                  "mutability": "Mut",
+                  "span": 56,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 57,
-                  "ty": 29
+                  "span": 56,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
                   "span": 60,
-                  "ty": 30
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
@@ -9067,57 +8951,62 @@
                 {
                   "mutability": "Mut",
                   "span": 59,
-                  "ty": 29
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
                   "span": 63,
-                  "ty": 30
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 62,
-                  "ty": 16
+                  "span": 65,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
                   "span": 62,
-                  "ty": 29
+                  "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 66,
-                  "ty": 30
+                  "span": 62,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
-                  "span": 68,
-                  "ty": 25
+                  "span": 64,
+                  "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 65,
-                  "ty": 16
+                  "span": 64,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
-                  "span": 65,
+                  "span": 67,
                   "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 67,
+                  "span": 66,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 67,
-                  "ty": 29
+                  "span": 66,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
                   "span": 70,
-                  "ty": 30
+                  "ty": 29
+                },
+                {
+                  "mutability": "Mut",
+                  "span": 71,
+                  "ty": 16
                 },
                 {
                   "mutability": "Mut",
@@ -9127,242 +9016,242 @@
                 {
                   "mutability": "Mut",
                   "span": 69,
-                  "ty": 29
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 73,
-                  "ty": 30
+                  "span": 71,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
                   "span": 74,
-                  "ty": 16
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 72,
+                  "span": 75,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 72,
-                  "ty": 25
+                  "span": 73,
+                  "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 74,
-                  "ty": 29
+                  "span": 73,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 77,
-                  "ty": 30
+                  "span": 75,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
                   "span": 78,
-                  "ty": 16
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 76,
+                  "span": 80,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 76,
-                  "ty": 25
+                  "span": 77,
+                  "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 78,
-                  "ty": 29
+                  "span": 77,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 81,
-                  "ty": 30
+                  "span": 79,
+                  "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 83,
-                  "ty": 16
+                  "span": 79,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
                   "span": 80,
-                  "ty": 16
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
-                  "span": 80,
-                  "ty": 25
+                  "span": 86,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 82,
+                  "span": 85,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 82,
-                  "ty": 25
+                  "span": 91,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 83,
-                  "ty": 29
+                  "span": 90,
+                  "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 89,
-                  "ty": 30
+                  "span": 96,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 88,
+                  "span": 95,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 94,
-                  "ty": 30
+                  "span": 101,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 93,
+                  "span": 100,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 99,
-                  "ty": 30
+                  "span": 106,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 98,
+                  "span": 105,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 104,
-                  "ty": 30
+                  "span": 111,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 103,
+                  "span": 110,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 109,
-                  "ty": 30
+                  "span": 115,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 108,
+                  "span": 114,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
                   "span": 114,
-                  "ty": 30
+                  "ty": 27
                 },
                 {
                   "mutability": "Mut",
-                  "span": 113,
-                  "ty": 16
+                  "span": 114,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 118,
-                  "ty": 30
+                  "span": 120,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 117,
+                  "span": 119,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 117,
-                  "ty": 28
+                  "span": 119,
+                  "ty": 27
                 },
                 {
                   "mutability": "Mut",
-                  "span": 117,
-                  "ty": 25
+                  "span": 119,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 123,
-                  "ty": 30
+                  "span": 125,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 122,
+                  "span": 124,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 122,
-                  "ty": 28
+                  "span": 124,
+                  "ty": 27
                 },
                 {
                   "mutability": "Mut",
-                  "span": 122,
-                  "ty": 25
+                  "span": 124,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 128,
-                  "ty": 30
+                  "span": 130,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 127,
+                  "span": 129,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 127,
-                  "ty": 28
+                  "span": 129,
+                  "ty": 27
                 },
                 {
                   "mutability": "Mut",
-                  "span": 127,
-                  "ty": 25
+                  "span": 129,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
                   "span": 133,
-                  "ty": 30
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 132,
-                  "ty": 16
+                  "span": 134,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
                   "span": 132,
-                  "ty": 28
+                  "ty": 16
                 },
                 {
                   "mutability": "Mut",
                   "span": 132,
-                  "ty": 25
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
                   "span": 136,
-                  "ty": 30
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
                   "span": 137,
-                  "ty": 25
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
@@ -9372,67 +9261,67 @@
                 {
                   "mutability": "Mut",
                   "span": 135,
-                  "ty": 29
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
                   "span": 139,
-                  "ty": 30
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 140,
-                  "ty": 25
+                  "span": 141,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 138,
+                  "span": 140,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
                   "span": 138,
-                  "ty": 29
+                  "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 142,
-                  "ty": 30
+                  "span": 138,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
-                  "span": 144,
-                  "ty": 25
+                  "span": 140,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
                   "span": 143,
-                  "ty": 16
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 141,
-                  "ty": 16
+                  "span": 144,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 141,
-                  "ty": 29
+                  "span": 142,
+                  "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 143,
-                  "ty": 29
+                  "span": 142,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
                   "span": 146,
-                  "ty": 30
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
                   "span": 147,
-                  "ty": 25
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
@@ -9442,65 +9331,45 @@
                 {
                   "mutability": "Mut",
                   "span": 145,
-                  "ty": 29
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
                   "span": 149,
-                  "ty": 30
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 150,
-                  "ty": 25
+                  "span": 151,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 148,
+                  "span": 150,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
                   "span": 148,
-                  "ty": 29
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 152,
-                  "ty": 30
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 154,
-                  "ty": 25
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 153,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 151,
-                  "ty": 16
+                  "span": 148,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
-                  "span": 151,
-                  "ty": 29
+                  "span": 150,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
                   "span": 153,
                   "ty": 29
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 156,
-                  "ty": 30
                 }
               ],
-              "span": 160,
+              "span": 157,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -9509,7 +9378,7 @@
                   "name": "x",
                   "source_info": {
                     "scope": 0,
-                    "span": 158
+                    "span": 155
                   },
                   "value": {
                     "Place": {
@@ -9524,7 +9393,7 @@
                   "name": "y",
                   "source_info": {
                     "scope": 0,
-                    "span": 159
+                    "span": 156
                   },
                   "value": {
                     "Place": {
@@ -9581,14 +9450,14 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 163,
+                                "span": 160,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 164
+                      "span": 161
                     },
                     {
                       "kind": {
@@ -9619,14 +9488,14 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 165,
+                                "span": 162,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 166
+                      "span": 163
                     }
                   ],
                   "terminator": {
@@ -9655,9 +9524,9 @@
                             "const_": {
                               "id": 41,
                               "kind": "ZeroSized",
-                              "ty": 31
+                              "ty": 30
                             },
-                            "span": 161,
+                            "span": 158,
                             "user_ty": null
                           }
                         },
@@ -9665,40 +9534,40 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 162
+                    "span": 159
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 167
+                    "span": 164
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 168,
+                  "span": 165,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 162,
+                  "span": 159,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 164,
+                  "span": 161,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 166,
+                  "span": 163,
                   "ty": 16
                 }
               ],
-              "span": 171,
+              "span": 168,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -9707,7 +9576,7 @@
                   "name": "x",
                   "source_info": {
                     "scope": 1,
-                    "span": 169
+                    "span": 166
                   },
                   "value": {
                     "Const": {
@@ -9730,7 +9599,7 @@
                         },
                         "ty": 16
                       },
-                      "span": 163,
+                      "span": 160,
                       "user_ty": null
                     }
                   }
@@ -9741,7 +9610,7 @@
                   "name": "y",
                   "source_info": {
                     "scope": 2,
-                    "span": 170
+                    "span": 167
                   },
                   "value": {
                     "Const": {
@@ -9764,7 +9633,7 @@
                         },
                         "ty": 16
                       },
-                      "span": 165,
+                      "span": 162,
                       "user_ty": null
                     }
                   }
diff --git a/tests/integration/programs/char-trivial.smir.json.expected b/tests/integration/programs/char-trivial.smir.json.expected
index 99f842f..a6e9bab 100644
--- a/tests/integration/programs/char-trivial.smir.json.expected
+++ b/tests/integration/programs/char-trivial.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
     [
-      0,
       {
         "Memory": {
           "align": 1,
@@ -43,55 +42,46 @@
   ],
   "functions": [
     [
-      0,
       {
         "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
-      13,
       {
         "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
-      14,
       {
         "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
-      19,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      20,
       {
         "IntrinsicSym": "black_box"
       }
     ],
     [
-      21,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      23,
       {
         "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
-      26,
       {
         "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
-      29,
       {
         "NoOpSym": ""
       }
@@ -135,16 +125,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 25
+                                  "ty": 24
                                 },
-                                "span": 51,
+                                "span": 48,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 52
+                      "span": 49
                     }
                   ],
                   "terminator": {
@@ -167,14 +157,14 @@
                         }
                       }
                     },
-                    "span": 50
+                    "span": 47
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 53
+                    "span": 50
                   }
                 },
                 {
@@ -219,9 +209,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -235,9 +225,9 @@
                             "const_": {
                               "id": 10,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 54,
+                            "span": 51,
                             "user_ty": null
                           }
                         },
@@ -245,28 +235,28 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 54
+                    "span": 51
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 55,
+                  "span": 52,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 52,
-                  "ty": 25
+                  "span": 49,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 54,
-                  "ty": 28
+                  "span": 51,
+                  "ty": 27
                 }
               ],
-              "span": 57,
+              "span": 54,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -275,7 +265,7 @@
                   "name": "a",
                   "source_info": {
                     "scope": 1,
-                    "span": 56
+                    "span": 53
                   },
                   "value": {
                     "Const": {
@@ -296,9 +286,9 @@
                             }
                           }
                         },
-                        "ty": 25
+                        "ty": 24
                       },
-                      "span": 51,
+                      "span": 48,
                       "user_ty": null
                     }
                   }
@@ -334,12 +324,6 @@
                       },
                       "span": 2
                     },
-                    {
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-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -424,7 +408,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -435,12 +419,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -500,7 +478,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -529,51 +507,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -587,7 +565,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -597,7 +575,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -606,7 +584,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -621,7 +599,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -636,7 +614,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -651,7 +629,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -666,7 +644,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -698,19 +676,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -737,7 +715,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -762,7 +740,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -770,7 +748,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -779,7 +757,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -804,7 +782,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -812,7 +790,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -821,13 +799,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -836,42 +814,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -895,7 +837,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -909,7 +851,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -918,37 +860,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -958,27 +894,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
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                   "ty": 1
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                 {
                   "mutability": "Mut",
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                   "ty": 7
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                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -991,7 +922,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -1014,7 +945,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -1022,21 +953,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
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-                    "span": 30
-                  },
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-                    "Place": {
-                      "local": 5,
-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -1074,7 +990,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1088,9 +1004,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -1098,7 +1014,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -1114,7 +1030,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1128,9 +1044,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -1138,35 +1054,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 36
+                    "span": 33
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 37,
+                  "span": 34,
                   "ty": 1
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                 {
                   "mutability": "Not",
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+                  "span": 36,
                   "ty": 1
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               ],
-              "span": 42,
+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1175,7 +1091,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -1190,7 +1106,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -1205,7 +1121,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -1214,7 +1130,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1266,9 +1182,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1276,35 +1192,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
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                   }
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                   "statements": [],
                   "terminator": {
                     "kind": "Return",
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                 {
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@@ -1343,35 +1259,35 @@
                         "unwind": "Continue"
                       }
                     },
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+                    "span": 40
                   }
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                   "terminator": {
                     "kind": "Return",
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                 {
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               ],
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               "spread_arg": 2,
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@@ -1417,7 +1333,7 @@
                           }
                         ]
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                     }
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@@ -1446,9 +1362,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
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                             "user_ty": null
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@@ -1458,7 +1374,7 @@
                         }
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@@ -1474,14 +1390,14 @@
                         "unwind": "Continue"
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                   }
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                   "terminator": {
                     "kind": "Return",
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                   }
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@@ -1497,40 +1413,40 @@
                         "unwind": "Terminate"
                       }
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-                    "span": 43
+                    "span": 40
                   }
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                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
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               "locals": [
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                   "mutability": "Mut",
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                 {
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                 }
               ],
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             }
@@ -1553,23 +1469,23 @@
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 44
+                    "span": 41
                   }
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               ],
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                 {
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                 },
                 {
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                 }
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               "var_debug_info": []
             }
@@ -1616,58 +1532,37 @@
                                   },
                                   "ty": 17
                                 },
-                                "span": 46,
+                                "span": 43,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 46
+                      "span": 43
                     }
                   ],
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                     "kind": "Return",
-                    "span": 45
+                    "span": 42
                   }
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               "locals": [
                 {
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                 {
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+                  "span": 45,
                   "ty": 1
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-                {
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-                  "composite": null,
-                  "name": "self",
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-                        "ty": 1
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
           "id": 5,
diff --git a/tests/integration/programs/closure-args.smir.json.expected b/tests/integration/programs/closure-args.smir.json.expected
index ae85db5..6baf4e6 100644
--- a/tests/integration/programs/closure-args.smir.json.expected
+++ b/tests/integration/programs/closure-args.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
     [
-      0,
       {
         "Memory": {
           "align": 1,
@@ -52,61 +51,51 @@
   ],
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       {
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       }
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       }
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     [
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       {
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       }
     ],
     [
-      19,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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       {
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       {
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       }
     ],
     [
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       {
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       }
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       {
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       }
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     [
-      34,
       {
         "NoOpSym": ""
       }
@@ -144,7 +133,7 @@
                           }
                         ]
                       },
-                      "span": 50
+                      "span": 47
                     },
                     {
                       "kind": {
@@ -178,7 +167,7 @@
                                       },
                                       "ty": 16
                                     },
-                                    "span": 52,
+                                    "span": 49,
                                     "user_ty": null
                                   }
                                 },
@@ -203,7 +192,7 @@
                                       },
                                       "ty": 16
                                     },
-                                    "span": 53,
+                                    "span": 50,
                                     "user_ty": null
                                   }
                                 }
@@ -212,7 +201,7 @@
                           }
                         ]
                       },
-                      "span": 51
+                      "span": 48
                     }
                   ],
                   "terminator": {
@@ -241,9 +230,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 25
+                              "ty": 24
                             },
-                            "span": 50,
+                            "span": 47,
                             "user_ty": null
                           }
                         },
@@ -251,7 +240,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 51
+                    "span": 48
                   }
                 },
                 {
@@ -276,14 +265,14 @@
                         }
                       }
                     },
-                    "span": 54
+                    "span": 51
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 55
+                    "span": 52
                   }
                 },
                 {
@@ -328,9 +317,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -344,9 +333,9 @@
                             "const_": {
                               "id": 12,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 56,
+                            "span": 53,
                             "user_ty": null
                           }
                         },
@@ -354,43 +343,43 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 56
+                    "span": 53
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 57,
+                  "span": 54,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 58,
-                  "ty": 28
+                  "span": 55,
+                  "ty": 27
                 },
                 {
                   "mutability": "Mut",
-                  "span": 51,
+                  "span": 48,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 50,
-                  "ty": 29
+                  "span": 47,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
-                  "span": 51,
-                  "ty": 30
+                  "span": 48,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 56,
-                  "ty": 31
+                  "span": 53,
+                  "ty": 30
                 }
               ],
-              "span": 59,
+              "span": 56,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -399,16 +388,16 @@
                   "name": "sum",
                   "source_info": {
                     "scope": 1,
-                    "span": 58
+                    "span": 55
                   },
                   "value": {
                     "Const": {
                       "const_": {
                         "id": 14,
                         "kind": "ZeroSized",
-                        "ty": 28
+                        "ty": 27
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -458,7 +447,7 @@
                           }
                         ]
                       },
-                      "span": 60
+                      "span": 57
                     }
                   ],
                   "terminator": {
@@ -471,7 +460,7 @@
                               {
                                 "Field": [
                                   1,
-                                  32
+                                  31
                                 ]
                               }
                             ]
@@ -499,7 +488,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 60
+                    "span": 57
                   }
                 },
                 {
@@ -528,43 +517,43 @@
                           }
                         ]
                       },
-                      "span": 60
+                      "span": 57
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 61
+                    "span": 58
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 62,
+                  "span": 59,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 63,
-                  "ty": 29
+                  "span": 60,
+                  "ty": 28
                 },
                 {
                   "mutability": "Not",
-                  "span": 64,
+                  "span": 61,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 65,
+                  "span": 62,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 60,
-                  "ty": 33
+                  "span": 57,
+                  "ty": 32
                 }
               ],
-              "span": 63,
+              "span": 60,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -573,7 +562,7 @@
                   "name": "x",
                   "source_info": {
                     "scope": 0,
-                    "span": 64
+                    "span": 61
                   },
                   "value": {
                     "Place": {
@@ -588,7 +577,7 @@
                   "name": "y",
                   "source_info": {
                     "scope": 0,
-                    "span": 65
+                    "span": 62
                   },
                   "value": {
                     "Place": {
@@ -628,12 +617,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -718,7 +701,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -729,12 +712,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -794,7 +771,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -823,51 +800,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -881,7 +858,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -891,7 +868,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -900,7 +877,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -915,7 +892,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -930,7 +907,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -945,7 +922,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -960,7 +937,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -992,19 +969,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -1031,7 +1008,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -1056,7 +1033,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -1064,7 +1041,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -1073,7 +1050,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -1098,7 +1075,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -1106,7 +1083,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -1115,13 +1092,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1130,42 +1107,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -1189,7 +1130,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1203,7 +1144,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -1212,37 +1153,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -1252,27 +1187,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
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                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -1285,7 +1215,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -1308,7 +1238,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -1316,21 +1246,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 30
-                  },
-                  "value": {
-                    "Place": {
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-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -1368,7 +1283,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1382,9 +1297,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -1392,7 +1307,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -1408,7 +1323,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1422,9 +1337,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -1432,35 +1347,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 36
+                    "span": 33
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 37,
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                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 38,
+                  "span": 35,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 39,
+                  "span": 36,
                   "ty": 1
                 }
               ],
-              "span": 42,
+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1469,7 +1384,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -1484,7 +1399,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -1499,7 +1414,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -1508,7 +1423,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1560,9 +1475,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1570,35 +1485,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 22
+                  "span": 40,
+                  "ty": 21
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1609,6 +1524,73 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
+    {
+      "details": null,
+      "mono_item_kind": {
+        "MonoItemFn": {
+          "body": [
+            {
+              "arg_count": 2,
+              "blocks": [
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": {
+                      "Call": {
+                        "args": [],
+                        "destination": {
+                          "local": 0,
+                          "projection": []
+                        },
+                        "func": {
+                          "Move": {
+                            "local": 1,
+                            "projection": []
+                          }
+                        },
+                        "target": 1,
+                        "unwind": "Continue"
+                      }
+                    },
+                    "span": 40
+                  }
+                },
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": "Return",
+                    "span": 40
+                  }
+                }
+              ],
+              "locals": [
+                {
+                  "mutability": "Mut",
+                  "span": 40,
+                  "ty": 1
+                },
+                {
+                  "mutability": "Not",
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+                  "ty": 7
+                },
+                {
+                  "mutability": "Not",
+                  "span": 40,
+                  "ty": 1
+                }
+              ],
+              "span": 40,
+              "spread_arg": 2,
+              "var_debug_info": []
+            }
+          ],
+          "id": 3,
+          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
+        }
+      },
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
+    },
     {
       "details": null,
       "mono_item_kind": {
@@ -1644,7 +1626,7 @@
                           }
                         ]
                       },
-                      "span": 43
+                      "span": 40
                     }
                   ],
                   "terminator": {
@@ -1673,9 +1655,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1685,7 +1667,7 @@
                         }
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1701,14 +1683,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1724,40 +1706,40 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
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                   "ty": 12
                 },
                 {
                   "mutability": "Not",
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                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 24
+                  "span": 40,
+                  "ty": 23
                 }
               ],
-              "span": 43,
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               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1768,73 +1750,6 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
-    {
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-                        "destination": {
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-                        },
-                        "func": {
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-                            "local": 1,
-                            "projection": []
-                          }
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-                        "unwind": "Continue"
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-                    },
-                    "span": 43
-                  }
-                },
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-                  "terminator": {
-                    "kind": "Return",
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-                  }
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-                },
-                {
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-                  "ty": 7
-                },
-                {
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-                  "span": 43,
-                  "ty": 1
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-              ],
-              "span": 43,
-              "spread_arg": 2,
-              "var_debug_info": []
-            }
-          ],
-          "id": 3,
-          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
-        }
-      },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
-    },
     {
       "details": null,
       "mono_item_kind": {
@@ -1847,23 +1762,23 @@
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 44
+                    "span": 41
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 44,
+                  "span": 41,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 44,
-                  "ty": 22
+                  "span": 41,
+                  "ty": 21
                 }
               ],
-              "span": 44,
+              "span": 41,
               "spread_arg": null,
               "var_debug_info": []
             }
@@ -1910,58 +1825,37 @@
                                   },
                                   "ty": 17
                                 },
-                                "span": 46,
+                                "span": 43,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 46
+                      "span": 43
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 45
+                    "span": 42
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 47,
+                  "span": 44,
                   "ty": 17
                 },
                 {
                   "mutability": "Not",
-                  "span": 48,
+                  "span": 45,
                   "ty": 1
                 }
               ],
-              "span": 49,
+              "span": 46,
               "spread_arg": null,
-              "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 48
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 4,
-                        "kind": "ZeroSized",
-                        "ty": 1
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
           "id": 5,
diff --git a/tests/integration/programs/closure-no-args.smir.json.expected b/tests/integration/programs/closure-no-args.smir.json.expected
index b8729ad..9d8e06f 100644
--- a/tests/integration/programs/closure-no-args.smir.json.expected
+++ b/tests/integration/programs/closure-no-args.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
     [
-      0,
       {
         "Memory": {
           "align": 1,
@@ -46,61 +45,51 @@
   ],
   "functions": [
     [
-      0,
       {
         "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
-      13,
       {
         "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
-      14,
       {
         "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
-      19,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      20,
       {
         "IntrinsicSym": "black_box"
       }
     ],
     [
-      21,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      23,
       {
         "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
-      25,
       {
         "NormalSym": "_ZN15closure_no_args4main28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
-      26,
       {
         "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
-      32,
       {
         "NoOpSym": ""
       }
@@ -138,7 +127,7 @@
                           }
                         ]
                       },
-                      "span": 50
+                      "span": 47
                     }
                   ],
                   "terminator": {
@@ -158,7 +147,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -172,9 +161,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 25
+                              "ty": 24
                             },
-                            "span": 50,
+                            "span": 47,
                             "user_ty": null
                           }
                         },
@@ -182,7 +171,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 51
+                    "span": 48
                   }
                 },
                 {
@@ -207,14 +196,14 @@
                         }
                       }
                     },
-                    "span": 52
+                    "span": 49
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 53
+                    "span": 50
                   }
                 },
                 {
@@ -259,9 +248,9 @@
                                     }
                                   }
                                 },
-                                "ty": 27
+                                "ty": 26
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -275,9 +264,9 @@
                             "const_": {
                               "id": 10,
                               "kind": "ZeroSized",
-                              "ty": 26
+                              "ty": 25
                             },
-                            "span": 54,
+                            "span": 51,
                             "user_ty": null
                           }
                         },
@@ -285,38 +274,38 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 54
+                    "span": 51
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 55,
+                  "span": 52,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 56,
-                  "ty": 28
+                  "span": 53,
+                  "ty": 27
                 },
                 {
                   "mutability": "Mut",
-                  "span": 51,
-                  "ty": 29
+                  "span": 48,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
-                  "span": 50,
-                  "ty": 30
+                  "span": 47,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 54,
-                  "ty": 31
+                  "span": 51,
+                  "ty": 30
                 }
               ],
-              "span": 57,
+              "span": 54,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -325,16 +314,16 @@
                   "name": "sum",
                   "source_info": {
                     "scope": 1,
-                    "span": 56
+                    "span": 53
                   },
                   "value": {
                     "Const": {
                       "const_": {
                         "id": 12,
                         "kind": "ZeroSized",
-                        "ty": 28
+                        "ty": 27
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -385,37 +374,37 @@
                                       }
                                     }
                                   },
-                                  "ty": 29
+                                  "ty": 28
                                 },
-                                "span": 59,
+                                "span": 56,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 59
+                      "span": 56
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 58
+                    "span": 55
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 60,
-                  "ty": 29
+                  "span": 57,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
-                  "span": 61,
-                  "ty": 30
+                  "span": 58,
+                  "ty": 29
                 }
               ],
-              "span": 61,
+              "span": 58,
               "spread_arg": null,
               "var_debug_info": []
             }
@@ -448,12 +437,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -538,7 +521,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -549,12 +532,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -614,7 +591,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -643,51 +620,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -701,7 +678,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -711,7 +688,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -720,7 +697,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -735,7 +712,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -750,7 +727,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -765,7 +742,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -780,7 +757,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -812,19 +789,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -851,7 +828,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -876,7 +853,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -884,7 +861,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -893,7 +870,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -918,7 +895,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -926,7 +903,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -935,13 +912,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -950,42 +927,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -1009,7 +950,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1023,7 +964,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -1032,37 +973,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -1072,27 +1007,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -1105,7 +1035,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -1128,7 +1058,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -1136,21 +1066,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 30
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 5,
-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -1188,7 +1103,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1202,9 +1117,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -1212,7 +1127,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -1228,7 +1143,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1242,9 +1157,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -1252,35 +1167,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 36
+                    "span": 33
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 37,
+                  "span": 34,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 38,
+                  "span": 35,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 39,
+                  "span": 36,
                   "ty": 1
                 }
               ],
-              "span": 42,
+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1289,7 +1204,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -1304,7 +1219,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -1319,7 +1234,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -1328,7 +1243,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1380,9 +1295,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1390,35 +1305,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 22
+                  "span": 40,
+                  "ty": 21
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1457,35 +1372,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1531,7 +1446,7 @@
                           }
                         ]
                       },
-                      "span": 43
+                      "span": 40
                     }
                   ],
                   "terminator": {
@@ -1560,9 +1475,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1572,7 +1487,7 @@
                         }
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1588,14 +1503,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1611,40 +1526,40 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 24
+                  "span": 40,
+                  "ty": 23
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1667,23 +1582,23 @@
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 44
+                    "span": 41
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 44,
+                  "span": 41,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 44,
-                  "ty": 22
+                  "span": 41,
+                  "ty": 21
                 }
               ],
-              "span": 44,
+              "span": 41,
               "spread_arg": null,
               "var_debug_info": []
             }
@@ -1730,58 +1645,37 @@
                                   },
                                   "ty": 17
                                 },
-                                "span": 46,
+                                "span": 43,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 46
+                      "span": 43
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 45
+                    "span": 42
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 47,
+                  "span": 44,
                   "ty": 17
                 },
                 {
                   "mutability": "Not",
-                  "span": 48,
+                  "span": 45,
                   "ty": 1
                 }
               ],
-              "span": 49,
+              "span": 46,
               "spread_arg": null,
-              "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 48
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 4,
-                        "kind": "ZeroSized",
-                        "ty": 1
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
           "id": 5,
diff --git a/tests/integration/programs/const-arithm-simple.smir.json.expected b/tests/integration/programs/const-arithm-simple.smir.json.expected
index 2198947..18a6705 100644
--- a/tests/integration/programs/const-arithm-simple.smir.json.expected
+++ b/tests/integration/programs/const-arithm-simple.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
     [
-      0,
       {
         "Memory": {
           "align": 1,
@@ -36,61 +35,51 @@
   ],
   "functions": [
     [
-      0,
       {
         "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
-      13,
       {
         "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
-      14,
       {
         "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
-      19,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      20,
       {
         "IntrinsicSym": "black_box"
       }
     ],
     [
-      21,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      23,
       {
         "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
-      27,
       {
         "NormalSym": "_ZN19const_arithm_simple4test17h"
       }
     ],
     [
-      28,
       {
         "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
-      31,
       {
         "NoOpSym": ""
       }
@@ -138,16 +127,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 26
+                                  "ty": 25
                                 },
-                                "span": 58,
+                                "span": 55,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 59
+                      "span": 56
                     },
                     {
                       "kind": {
@@ -180,16 +169,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 26
+                                  "ty": 25
                                 },
-                                "span": 60,
+                                "span": 57,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 61
+                      "span": 58
                     }
                   ],
                   "terminator": {
@@ -218,9 +207,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 27
+                              "ty": 26
                             },
-                            "span": 56,
+                            "span": 53,
                             "user_ty": null
                           }
                         },
@@ -228,7 +217,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 57
+                    "span": 54
                   }
                 },
                 {
@@ -253,7 +242,7 @@
                         }
                       }
                     },
-                    "span": 62
+                    "span": 59
                   }
                 },
                 {
@@ -298,9 +287,9 @@
                                     }
                                   }
                                 },
-                                "ty": 29
+                                "ty": 28
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -314,9 +303,9 @@
                             "const_": {
                               "id": 12,
                               "kind": "ZeroSized",
-                              "ty": 28
+                              "ty": 27
                             },
-                            "span": 63,
+                            "span": 60,
                             "user_ty": null
                           }
                         },
@@ -324,45 +313,45 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 63
+                    "span": 60
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 64
+                    "span": 61
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 65,
+                  "span": 62,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 66,
-                  "ty": 25
+                  "span": 63,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 59,
-                  "ty": 26
+                  "span": 56,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 61,
-                  "ty": 26
+                  "span": 58,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 63,
-                  "ty": 30
+                  "span": 60,
+                  "ty": 29
                 }
               ],
-              "span": 69,
+              "span": 66,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -371,7 +360,7 @@
                   "name": "x",
                   "source_info": {
                     "scope": 1,
-                    "span": 67
+                    "span": 64
                   },
                   "value": {
                     "Const": {
@@ -396,9 +385,9 @@
                             }
                           }
                         },
-                        "ty": 26
+                        "ty": 25
                       },
-                      "span": 58,
+                      "span": 55,
                       "user_ty": null
                     }
                   }
@@ -409,7 +398,7 @@
                   "name": "y",
                   "source_info": {
                     "scope": 2,
-                    "span": 68
+                    "span": 65
                   },
                   "value": {
                     "Const": {
@@ -434,9 +423,9 @@
                             }
                           }
                         },
-                        "ty": 26
+                        "ty": 25
                       },
-                      "span": 60,
+                      "span": 57,
                       "user_ty": null
                     }
                   }
@@ -447,7 +436,7 @@
                   "name": "z",
                   "source_info": {
                     "scope": 3,
-                    "span": 66
+                    "span": 63
                   },
                   "value": {
                     "Place": {
@@ -501,33 +490,33 @@
                           }
                         ]
                       },
-                      "span": 51
+                      "span": 48
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 50
+                    "span": 47
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 52,
-                  "ty": 25
+                  "span": 49,
+                  "ty": 24
                 },
                 {
                   "mutability": "Not",
-                  "span": 53,
-                  "ty": 26
+                  "span": 50,
+                  "ty": 25
                 },
                 {
                   "mutability": "Not",
-                  "span": 54,
-                  "ty": 26
+                  "span": 51,
+                  "ty": 25
                 }
               ],
-              "span": 55,
+              "span": 52,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -536,7 +525,7 @@
                   "name": "x",
                   "source_info": {
                     "scope": 0,
-                    "span": 53
+                    "span": 50
                   },
                   "value": {
                     "Place": {
@@ -551,7 +540,7 @@
                   "name": "y",
                   "source_info": {
                     "scope": 0,
-                    "span": 54
+                    "span": 51
                   },
                   "value": {
                     "Place": {
@@ -591,12 +580,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -681,7 +664,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -692,12 +675,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -757,7 +734,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -786,51 +763,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -844,7 +821,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -854,7 +831,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -863,7 +840,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -878,7 +855,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -893,7 +870,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -908,7 +885,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -923,7 +900,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -955,19 +932,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -994,7 +971,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -1019,7 +996,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -1027,7 +1004,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -1036,7 +1013,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -1061,7 +1038,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -1069,7 +1046,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -1078,13 +1055,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1093,42 +1070,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -1152,7 +1093,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1166,7 +1107,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -1175,37 +1116,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -1215,27 +1150,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -1248,7 +1178,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -1271,7 +1201,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -1279,21 +1209,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 30
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 5,
-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -1331,7 +1246,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1345,9 +1260,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -1355,7 +1270,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -1371,7 +1286,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1385,9 +1300,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -1395,35 +1310,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 36
+                    "span": 33
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 37,
+                  "span": 34,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 38,
+                  "span": 35,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 39,
+                  "span": 36,
                   "ty": 1
                 }
               ],
-              "span": 42,
+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1432,7 +1347,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -1447,7 +1362,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -1462,7 +1377,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -1471,7 +1386,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1523,9 +1438,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1533,35 +1448,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 22
+                  "span": 40,
+                  "ty": 21
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1572,73 +1487,6 @@
       },
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       "mono_item_kind": {
@@ -1674,7 +1522,7 @@
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-                      "span": 43
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                   "terminator": {
@@ -1703,9 +1551,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
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@@ -1715,7 +1563,7 @@
                         }
                       }
                     },
-                    "span": 43
+                    "span": 40
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@@ -1731,14 +1579,14 @@
                         "unwind": "Continue"
                       }
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-                    "span": 43
+                    "span": 40
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                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
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@@ -1754,40 +1602,40 @@
                         "unwind": "Terminate"
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                   "terminator": {
                     "kind": "Resume",
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                   "mutability": "Mut",
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                   "ty": 12
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-                  "ty": 24
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@@ -1798,6 +1646,73 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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+      "mono_item_kind": {
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+                            "local": 1,
+                            "projection": []
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+                        "unwind": "Continue"
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+                    "kind": "Return",
+                    "span": 40
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+              "spread_arg": 2,
+              "var_debug_info": []
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+          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
+        }
+      },
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
+    },
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       "details": null,
       "mono_item_kind": {
@@ -1810,23 +1725,23 @@
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                   "terminator": {
                     "kind": "Return",
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+                    "span": 41
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               "locals": [
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                   "ty": 1
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                 {
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+                  "ty": 21
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@@ -1873,58 +1788,37 @@
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-                                "span": 46,
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                   "ty": 1
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-                      "user_ty": null
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-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
           "id": 5,
diff --git a/tests/integration/programs/div.smir.json.expected b/tests/integration/programs/div.smir.json.expected
index 3ad61cc..7ce57f9 100644
--- a/tests/integration/programs/div.smir.json.expected
+++ b/tests/integration/programs/div.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
     [
-      0,
       {
         "Memory": {
           "align": 1,
@@ -49,55 +48,46 @@
   ],
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       {
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-      19,
       {
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       {
         "IntrinsicSym": "black_box"
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       {
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       {
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     [
-      25,
       {
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     [
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       {
         "NoOpSym": ""
       }
@@ -145,7 +135,7 @@
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                                     "ty": 16
                                   },
-                                  "span": 52,
+                                  "span": 49,
                                   "user_ty": null
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@@ -170,7 +160,7 @@
                                     },
                                     "ty": 16
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-                                  "span": 51,
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@@ -178,7 +168,7 @@
                           }
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@@ -213,7 +203,7 @@
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                                 "ty": 16
                               },
-                              "span": 50,
+                              "span": 47,
                               "user_ty": null
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                           }
@@ -222,7 +212,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 51
+                    "span": 48
                   }
                 },
                 {
@@ -258,7 +248,7 @@
                                     },
                                     "ty": 16
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-                                  "span": 52,
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@@ -283,7 +273,7 @@
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@@ -291,7 +281,7 @@
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@@ -324,7 +314,7 @@
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@@ -349,7 +339,7 @@
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@@ -357,7 +347,7 @@
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@@ -385,7 +375,7 @@
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@@ -422,7 +412,7 @@
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@@ -447,7 +437,7 @@
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-                                "span": 52,
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@@ -457,7 +447,7 @@
                         "unwind": "Continue"
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-                    "span": 51
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                   }
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@@ -493,7 +483,7 @@
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                                     "ty": 16
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-                                  "span": 50,
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@@ -518,7 +508,7 @@
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                                     "ty": 16
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-                                  "span": 52,
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@@ -526,7 +516,7 @@
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@@ -549,14 +539,14 @@
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                   }
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-                    "span": 54
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                   }
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                 {
@@ -601,9 +591,9 @@
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-                                "ty": 26
+                                "ty": 25
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-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
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@@ -617,9 +607,9 @@
                             "const_": {
                               "id": 14,
                               "kind": "ZeroSized",
-                              "ty": 25
+                              "ty": 24
                             },
-                            "span": 55,
+                            "span": 52,
                             "user_ty": null
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@@ -627,48 +617,48 @@
                         "unwind": "Continue"
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                     },
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                   }
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                   "mutability": "Mut",
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                 {
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                   "mutability": "Mut",
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-                  "ty": 28
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+                  "ty": 27
                 }
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+              "span": 54,
               "spread_arg": null,
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@@ -701,12 +691,6 @@
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                         "StorageLive": 8
@@ -791,7 +775,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
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@@ -802,12 +786,6 @@
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@@ -867,7 +845,7 @@
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                       },
-                      "span": 6
+                      "span": 5
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@@ -896,51 +874,51 @@
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                       },
-                      "span": 7
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-                      "span": 8
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                     "kind": "Return",
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+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
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+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
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                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
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                   "ty": 8
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                 {
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+                  "span": 12,
                   "ty": 9
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                 {
@@ -954,7 +932,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
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                   "ty": 11
                 },
@@ -964,7 +942,7 @@
                   "ty": 12
                 }
               ],
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@@ -973,7 +951,7 @@
                   "name": "main",
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+                    "span": 9
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@@ -988,7 +966,7 @@
                   "name": "argc",
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-                    "span": 11
+                    "span": 10
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@@ -1003,7 +981,7 @@
                   "name": "argv",
                   "source_info": {
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-                    "span": 12
+                    "span": 11
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                   "value": {
                     "Place": {
@@ -1018,7 +996,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
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                   "value": {
                     "Place": {
@@ -1033,7 +1011,7 @@
                   "name": "v",
                   "source_info": {
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+                    "span": 6
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@@ -1065,19 +1043,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
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+                      "span": 16
                     },
                     {
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                       },
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@@ -1104,7 +1082,7 @@
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                   "terminator": {
@@ -1129,7 +1107,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -1137,7 +1115,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -1146,7 +1124,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -1171,7 +1149,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
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@@ -1179,7 +1157,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -1188,13 +1166,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
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                         "StorageLive": 5
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-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1203,42 +1181,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
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-                    {
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-                            "projection": []
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                           {
                             "Use": {
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@@ -1262,7 +1204,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1276,7 +1218,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -1285,37 +1227,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
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                     {
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                     {
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                   ],
                   "terminator": {
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                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -1325,27 +1261,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -1358,7 +1289,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -1381,7 +1312,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -1389,21 +1320,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 30
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 5,
-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -1441,7 +1357,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1455,9 +1371,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -1465,7 +1381,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -1481,7 +1397,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1495,9 +1411,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -1505,35 +1421,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 36
+                    "span": 33
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 37,
+                  "span": 34,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 38,
+                  "span": 35,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 39,
+                  "span": 36,
                   "ty": 1
                 }
               ],
-              "span": 42,
+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1542,7 +1458,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -1557,7 +1473,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -1572,7 +1488,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -1581,7 +1497,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1633,9 +1549,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1643,35 +1559,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 22
+                  "span": 40,
+                  "ty": 21
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1710,35 +1626,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1784,7 +1700,7 @@
                           }
                         ]
                       },
-                      "span": 43
+                      "span": 40
                     }
                   ],
                   "terminator": {
@@ -1813,9 +1729,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1825,7 +1741,7 @@
                         }
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1841,14 +1757,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1864,40 +1780,40 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 24
+                  "span": 40,
+                  "ty": 23
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1920,23 +1836,23 @@
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 44
+                    "span": 41
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 44,
+                  "span": 41,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 44,
-                  "ty": 22
+                  "span": 41,
+                  "ty": 21
                 }
               ],
-              "span": 44,
+              "span": 41,
               "spread_arg": null,
               "var_debug_info": []
             }
@@ -1983,58 +1899,37 @@
                                   },
                                   "ty": 17
                                 },
-                                "span": 46,
+                                "span": 43,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 46
+                      "span": 43
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 45
+                    "span": 42
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 47,
+                  "span": 44,
                   "ty": 17
                 },
                 {
                   "mutability": "Not",
-                  "span": 48,
+                  "span": 45,
                   "ty": 1
                 }
               ],
-              "span": 49,
+              "span": 46,
               "spread_arg": null,
-              "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 48
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 4,
-                        "kind": "ZeroSized",
-                        "ty": 1
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
           "id": 5,
diff --git a/tests/integration/programs/double-ref-deref.smir.json.expected b/tests/integration/programs/double-ref-deref.smir.json.expected
index f05ac0e..3dc9b49 100644
--- a/tests/integration/programs/double-ref-deref.smir.json.expected
+++ b/tests/integration/programs/double-ref-deref.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
     [
-      0,
       {
         "Memory": {
           "align": 1,
@@ -44,55 +43,46 @@
   ],
   "functions": [
     [
-      0,
       {
         "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
-      13,
       {
         "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
-      14,
       {
         "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
-      19,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      20,
       {
         "IntrinsicSym": "black_box"
       }
     ],
     [
-      21,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      23,
       {
         "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
-      25,
       {
         "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
-      30,
       {
         "NoOpSym": ""
       }
@@ -138,14 +128,14 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 51,
+                                "span": 48,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 51
+                      "span": 48
                     },
                     {
                       "kind": {
@@ -168,7 +158,7 @@
                           }
                         ]
                       },
-                      "span": 52
+                      "span": 49
                     },
                     {
                       "kind": {
@@ -191,7 +181,7 @@
                           }
                         ]
                       },
-                      "span": 53
+                      "span": 50
                     },
                     {
                       "kind": {
@@ -210,7 +200,7 @@
                           }
                         ]
                       },
-                      "span": 54
+                      "span": 51
                     },
                     {
                       "kind": {
@@ -231,7 +221,7 @@
                           }
                         ]
                       },
-                      "span": 54
+                      "span": 51
                     }
                   ],
                   "terminator": {
@@ -254,14 +244,14 @@
                         }
                       }
                     },
-                    "span": 50
+                    "span": 47
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 55
+                    "span": 52
                   }
                 },
                 {
@@ -306,9 +296,9 @@
                                     }
                                   }
                                 },
-                                "ty": 26
+                                "ty": 25
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -322,9 +312,9 @@
                             "const_": {
                               "id": 10,
                               "kind": "ZeroSized",
-                              "ty": 25
+                              "ty": 24
                             },
-                            "span": 56,
+                            "span": 53,
                             "user_ty": null
                           }
                         },
@@ -332,48 +322,48 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 56
+                    "span": 53
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 57,
+                  "span": 54,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 58,
+                  "span": 55,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 59,
-                  "ty": 27
+                  "span": 56,
+                  "ty": 26
                 },
                 {
                   "mutability": "Not",
-                  "span": 60,
-                  "ty": 28
+                  "span": 57,
+                  "ty": 27
                 },
                 {
                   "mutability": "Mut",
-                  "span": 54,
+                  "span": 51,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 56,
-                  "ty": 29
+                  "span": 53,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
-                  "span": 60,
-                  "ty": 27
+                  "span": 57,
+                  "ty": 26
                 }
               ],
-              "span": 61,
+              "span": 58,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -382,7 +372,7 @@
                   "name": "a",
                   "source_info": {
                     "scope": 1,
-                    "span": 58
+                    "span": 55
                   },
                   "value": {
                     "Place": {
@@ -397,7 +387,7 @@
                   "name": "b",
                   "source_info": {
                     "scope": 2,
-                    "span": 59
+                    "span": 56
                   },
                   "value": {
                     "Place": {
@@ -412,7 +402,7 @@
                   "name": "c",
                   "source_info": {
                     "scope": 3,
-                    "span": 60
+                    "span": 57
                   },
                   "value": {
                     "Place": {
@@ -452,12 +442,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -542,7 +526,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -553,12 +537,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -618,7 +596,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -647,51 +625,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -705,7 +683,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -715,7 +693,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -724,7 +702,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -739,7 +717,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -754,7 +732,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -769,7 +747,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -784,7 +762,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -816,19 +794,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -855,7 +833,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -880,7 +858,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -888,7 +866,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -897,7 +875,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -922,7 +900,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -930,7 +908,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -939,13 +917,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -954,42 +932,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -1013,7 +955,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1027,7 +969,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -1036,37 +978,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -1076,27 +1012,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -1109,7 +1040,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -1132,7 +1063,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -1140,21 +1071,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
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-                    }
-                  }
                 }
               ]
             }
@@ -1192,7 +1108,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
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                           }
@@ -1206,9 +1122,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -1216,7 +1132,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -1232,7 +1148,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1246,9 +1162,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -1256,35 +1172,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
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                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
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               "locals": [
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                   "mutability": "Not",
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@@ -1293,7 +1209,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
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                     "Place": {
@@ -1308,7 +1224,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
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@@ -1323,7 +1239,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
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                   "value": {
                     "Const": {
@@ -1332,7 +1248,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1384,9 +1300,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
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@@ -1394,35 +1310,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
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                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
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               "locals": [
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                 {
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                 {
                   "mutability": "Not",
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@@ -1433,73 +1349,6 @@
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@@ -1535,7 +1384,7 @@
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@@ -1564,9 +1413,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
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@@ -1576,7 +1425,7 @@
                         }
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-                    "span": 43
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@@ -1592,14 +1441,14 @@
                         "unwind": "Continue"
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                     "kind": "Return",
-                    "span": 43
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@@ -1615,40 +1464,40 @@
                         "unwind": "Terminate"
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                   "mutability": "Mut",
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@@ -1659,6 +1508,73 @@
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@@ -1734,58 +1650,37 @@
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diff --git a/tests/integration/programs/enum.smir.json.expected b/tests/integration/programs/enum.smir.json.expected
index a13dfed..6bb4000 100644
--- a/tests/integration/programs/enum.smir.json.expected
+++ b/tests/integration/programs/enum.smir.json.expected
@@ -2,49 +2,41 @@
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       {
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@@ -73,12 +65,6 @@
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                       "kind": {
                         "StorageLive": 8
@@ -163,7 +149,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -174,12 +160,6 @@
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@@ -239,7 +219,7 @@
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@@ -268,51 +248,51 @@
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               "locals": [
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@@ -326,7 +306,7 @@
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@@ -336,7 +316,7 @@
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@@ -345,7 +325,7 @@
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@@ -360,7 +340,7 @@
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@@ -375,7 +355,7 @@
                   "name": "argv",
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@@ -390,7 +370,7 @@
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@@ -405,7 +385,7 @@
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@@ -437,19 +417,19 @@
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                       },
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@@ -476,7 +456,7 @@
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@@ -501,7 +481,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
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@@ -509,7 +489,7 @@
                         "unwind": "Continue"
                       }
                     },
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                   }
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@@ -518,7 +498,7 @@
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                         "StorageDead": 4
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@@ -543,7 +523,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
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@@ -551,7 +531,7 @@
                         "unwind": "Continue"
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@@ -560,13 +540,13 @@
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@@ -575,42 +555,6 @@
                             "local": 5,
                             "projection": []
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-                                "projection": [
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-                                      15
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@@ -634,7 +578,7 @@
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@@ -648,7 +592,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
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@@ -657,37 +601,31 @@
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+                      "span": 23
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+                    "span": 20
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+                  "span": 26,
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@@ -697,27 +635,22 @@
                 },
                 {
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-                  "ty": 18
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-                {
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@@ -730,7 +663,7 @@
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@@ -753,7 +686,7 @@
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@@ -761,21 +694,6 @@
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@@ -813,7 +731,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
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@@ -827,9 +745,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
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+                              "ty": 18
                             },
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@@ -837,7 +755,7 @@
                         "unwind": "Continue"
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                 {
@@ -853,7 +771,7 @@
                                 "kind": "ZeroSized",
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                               },
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@@ -867,9 +785,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
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-                            "span": 34,
+                            "span": 31,
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                           }
                         },
@@ -877,35 +795,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
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@@ -914,7 +832,7 @@
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@@ -929,7 +847,7 @@
                   "name": "result",
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@@ -944,7 +862,7 @@
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@@ -953,7 +871,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
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                       "user_ty": null
                     }
                   }
@@ -1005,9 +923,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1015,35 +933,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
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                   }
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                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
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               "locals": [
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                   "mutability": "Mut",
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+                  "span": 40,
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                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 22
+                  "span": 40,
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                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
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                   "ty": 1
                 }
               ],
-              "span": 43,
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               "spread_arg": 2,
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@@ -1054,6 +972,73 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
+    {
+      "details": null,
+      "mono_item_kind": {
+        "MonoItemFn": {
+          "body": [
+            {
+              "arg_count": 2,
+              "blocks": [
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+                  "statements": [],
+                  "terminator": {
+                    "kind": {
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+                        "args": [],
+                        "destination": {
+                          "local": 0,
+                          "projection": []
+                        },
+                        "func": {
+                          "Move": {
+                            "local": 1,
+                            "projection": []
+                          }
+                        },
+                        "target": 1,
+                        "unwind": "Continue"
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+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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@@ -1089,7 +1074,7 @@
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@@ -1118,9 +1103,9 @@
                             "const_": {
                               "id": 7,
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-                              "ty": 23
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-                            "span": 43,
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@@ -1130,7 +1115,7 @@
                         }
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-                    "span": 43
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@@ -1146,14 +1131,14 @@
                         "unwind": "Continue"
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@@ -1169,40 +1154,40 @@
                         "unwind": "Terminate"
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-                    "span": 43
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                   "mutability": "Mut",
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@@ -1213,73 +1198,6 @@
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@@ -1292,23 +1210,23 @@
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                   "terminator": {
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@@ -1352,28 +1270,28 @@
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@@ -1436,58 +1354,37 @@
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diff --git a/tests/integration/programs/fibonacci.smir.json.expected b/tests/integration/programs/fibonacci.smir.json.expected
index 9bcc8c1..4d6cad5 100644
--- a/tests/integration/programs/fibonacci.smir.json.expected
+++ b/tests/integration/programs/fibonacci.smir.json.expected
@@ -1,7 +1,6 @@
 {
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@@ -43,61 +42,51 @@
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       {
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       {
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@@ -126,12 +115,6 @@
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                         "StorageLive": 8
@@ -216,7 +199,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
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@@ -227,12 +210,6 @@
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@@ -292,7 +269,7 @@
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@@ -321,51 +298,51 @@
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@@ -379,7 +356,7 @@
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@@ -389,7 +366,7 @@
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@@ -398,7 +375,7 @@
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@@ -413,7 +390,7 @@
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@@ -428,7 +405,7 @@
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@@ -443,7 +420,7 @@
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@@ -458,7 +435,7 @@
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@@ -490,19 +467,19 @@
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@@ -529,7 +506,7 @@
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@@ -554,7 +531,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
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                             "user_ty": null
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@@ -562,7 +539,7 @@
                         "unwind": "Continue"
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@@ -571,7 +548,7 @@
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@@ -596,7 +573,7 @@
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-                            "span": 19,
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@@ -604,7 +581,7 @@
                         "unwind": "Continue"
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@@ -613,13 +590,13 @@
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@@ -628,42 +605,6 @@
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                             "projection": []
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-                              "Shared",
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-                                "projection": [
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-                                      15
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@@ -687,7 +628,7 @@
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@@ -701,7 +642,7 @@
                               "IntToInt",
                               {
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-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
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@@ -710,37 +651,31 @@
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@@ -750,27 +685,22 @@
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-                  "ty": 18
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@@ -783,7 +713,7 @@
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@@ -806,7 +736,7 @@
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@@ -814,21 +744,6 @@
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@@ -866,7 +781,7 @@
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-                              "span": 32,
+                              "span": 29,
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@@ -880,9 +795,9 @@
                             "const_": {
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                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
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@@ -890,7 +805,7 @@
                         "unwind": "Continue"
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-                    "span": 33
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                   }
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                 {
@@ -906,7 +821,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
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@@ -920,9 +835,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
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-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -930,35 +845,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 36
+                    "span": 33
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 37,
+                  "span": 34,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 38,
+                  "span": 35,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 39,
+                  "span": 36,
                   "ty": 1
                 }
               ],
-              "span": 42,
+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -967,7 +882,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -982,7 +897,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -997,7 +912,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -1006,7 +921,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1058,9 +973,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1068,35 +983,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 22
+                  "span": 40,
+                  "ty": 21
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1142,7 +1057,7 @@
                           }
                         ]
                       },
-                      "span": 43
+                      "span": 40
                     }
                   ],
                   "terminator": {
@@ -1171,9 +1086,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1183,7 +1098,7 @@
                         }
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1199,14 +1114,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1222,40 +1137,40 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 24
+                  "span": 40,
+                  "ty": 23
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1294,35 +1209,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1345,23 +1260,23 @@
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 44
+                    "span": 41
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 44,
+                  "span": 41,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 44,
-                  "ty": 22
+                  "span": 41,
+                  "ty": 21
                 }
               ],
-              "span": 44,
+              "span": 41,
               "spread_arg": null,
               "var_debug_info": []
             }
@@ -1408,58 +1323,37 @@
                                   },
                                   "ty": 17
                                 },
-                                "span": 46,
+                                "span": 43,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 46
+                      "span": 43
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 45
+                    "span": 42
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 47,
+                  "span": 44,
                   "ty": 17
                 },
                 {
                   "mutability": "Not",
-                  "span": 48,
+                  "span": 45,
                   "ty": 1
                 }
               ],
-              "span": 49,
+              "span": 46,
               "spread_arg": null,
-              "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 48
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 4,
-                        "kind": "ZeroSized",
-                        "ty": 1
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
           "id": 5,
@@ -1501,9 +1395,9 @@
                                     }
                                   }
                                 },
-                                "ty": 26
+                                "ty": 25
                               },
-                              "span": 68,
+                              "span": 65,
                               "user_ty": null
                             }
                           }
@@ -1517,9 +1411,9 @@
                             "const_": {
                               "id": 12,
                               "kind": "ZeroSized",
-                              "ty": 27
+                              "ty": 26
                             },
-                            "span": 67,
+                            "span": 64,
                             "user_ty": null
                           }
                         },
@@ -1527,7 +1421,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 69
+                    "span": 66
                   }
                 },
                 {
@@ -1552,14 +1446,14 @@
                         }
                       }
                     },
-                    "span": 70
+                    "span": 67
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 71
+                    "span": 68
                   }
                 },
                 {
@@ -1604,9 +1498,9 @@
                                     }
                                   }
                                 },
-                                "ty": 30
+                                "ty": 29
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1620,9 +1514,9 @@
                             "const_": {
                               "id": 14,
                               "kind": "ZeroSized",
-                              "ty": 29
+                              "ty": 28
                             },
-                            "span": 72,
+                            "span": 69,
                             "user_ty": null
                           }
                         },
@@ -1630,28 +1524,28 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 72
+                    "span": 69
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 73,
+                  "span": 70,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 74,
-                  "ty": 26
+                  "span": 71,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 72,
-                  "ty": 31
+                  "span": 69,
+                  "ty": 30
                 }
               ],
-              "span": 75,
+              "span": 72,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1660,7 +1554,7 @@
                   "name": "ans",
                   "source_info": {
                     "scope": 1,
-                    "span": 74
+                    "span": 71
                   },
                   "value": {
                     "Place": {
@@ -1701,18 +1595,18 @@
                           "branches": [
                             [
                               0,
-                              2
+                              3
                             ],
                             [
                               1,
-                              3
+                              2
                             ]
                           ],
                           "otherwise": 1
                         }
                       }
                     },
-                    "span": 50
+                    "span": 47
                   }
                 },
                 {
@@ -1752,9 +1646,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 26
+                                    "ty": 25
                                   },
-                                  "span": 51,
+                                  "span": 48,
                                   "user_ty": null
                                 }
                               }
@@ -1762,7 +1656,7 @@
                           }
                         ]
                       },
-                      "span": 52
+                      "span": 49
                     }
                   ],
                   "terminator": {
@@ -1775,7 +1669,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -1810,9 +1704,9 @@
                                       }
                                     }
                                   },
-                                  "ty": 26
+                                  "ty": 25
                                 },
-                                "span": 51,
+                                "span": 48,
                                 "user_ty": null
                               }
                             }
@@ -1822,7 +1716,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 52
+                    "span": 49
                   }
                 },
                 {
@@ -1843,7 +1737,7 @@
                                     "Allocated": {
                                       "align": 4,
                                       "bytes": [
-                                        0,
+                                        1,
                                         0,
                                         0,
                                         0
@@ -1854,16 +1748,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 26
+                                  "ty": 25
                                 },
-                                "span": 53,
+                                "span": 50,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 53
+                      "span": 50
                     }
                   ],
                   "terminator": {
@@ -1872,7 +1766,7 @@
                         "target": 9
                       }
                     },
-                    "span": 53
+                    "span": 50
                   }
                 },
                 {
@@ -1893,7 +1787,7 @@
                                     "Allocated": {
                                       "align": 4,
                                       "bytes": [
-                                        1,
+                                        0,
                                         0,
                                         0,
                                         0
@@ -1904,16 +1798,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 26
+                                  "ty": 25
                                 },
-                                "span": 54,
+                                "span": 51,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 54
+                      "span": 51
                     }
                   ],
                   "terminator": {
@@ -1922,7 +1816,7 @@
                         "target": 9
                       }
                     },
-                    "span": 54
+                    "span": 51
                   }
                 },
                 {
@@ -1942,7 +1836,7 @@
                                   {
                                     "Field": [
                                       0,
-                                      26
+                                      25
                                     ]
                                   }
                                 ]
@@ -1951,7 +1845,7 @@
                           }
                         ]
                       },
-                      "span": 52
+                      "span": 49
                     }
                   ],
                   "terminator": {
@@ -1974,9 +1868,9 @@
                             "const_": {
                               "id": 12,
                               "kind": "ZeroSized",
-                              "ty": 27
+                              "ty": 26
                             },
-                            "span": 55,
+                            "span": 52,
                             "user_ty": null
                           }
                         },
@@ -1984,7 +1878,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 56
+                    "span": 53
                   }
                 },
                 {
@@ -2008,7 +1902,7 @@
                               {
                                 "Constant": {
                                   "const_": {
-                                    "id": 11,
+                                    "id": 10,
                                     "kind": {
                                       "Allocated": {
                                         "align": 4,
@@ -2024,9 +1918,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 26
+                                    "ty": 25
                                   },
-                                  "span": 57,
+                                  "span": 54,
                                   "user_ty": null
                                 }
                               }
@@ -2034,7 +1928,7 @@
                           }
                         ]
                       },
-                      "span": 58
+                      "span": 55
                     }
                   ],
                   "terminator": {
@@ -2047,7 +1941,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -2066,7 +1960,7 @@
                             {
                               "Constant": {
                                 "const_": {
-                                  "id": 11,
+                                  "id": 10,
                                   "kind": {
                                     "Allocated": {
                                       "align": 4,
@@ -2082,9 +1976,9 @@
                                       }
                                     }
                                   },
-                                  "ty": 26
+                                  "ty": 25
                                 },
-                                "span": 57,
+                                "span": 54,
                                 "user_ty": null
                               }
                             }
@@ -2094,7 +1988,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 58
+                    "span": 55
                   }
                 },
                 {
@@ -2114,7 +2008,7 @@
                                   {
                                     "Field": [
                                       0,
-                                      26
+                                      25
                                     ]
                                   }
                                 ]
@@ -2123,7 +2017,7 @@
                           }
                         ]
                       },
-                      "span": 58
+                      "span": 55
                     }
                   ],
                   "terminator": {
@@ -2146,9 +2040,9 @@
                             "const_": {
                               "id": 12,
                               "kind": "ZeroSized",
-                              "ty": 27
+                              "ty": 26
                             },
-                            "span": 59,
+                            "span": 56,
                             "user_ty": null
                           }
                         },
@@ -2156,7 +2050,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 60
+                    "span": 57
                   }
                 },
                 {
@@ -2187,7 +2081,7 @@
                           }
                         ]
                       },
-                      "span": 61
+                      "span": 58
                     }
                   ],
                   "terminator": {
@@ -2200,7 +2094,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -2228,7 +2122,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 61
+                    "span": 58
                   }
                 },
                 {
@@ -2248,7 +2142,7 @@
                                   {
                                     "Field": [
                                       0,
-                                      26
+                                      25
                                     ]
                                   }
                                 ]
@@ -2257,7 +2151,7 @@
                           }
                         ]
                       },
-                      "span": 61
+                      "span": 58
                     }
                   ],
                   "terminator": {
@@ -2266,65 +2160,65 @@
                         "target": 9
                       }
                     },
-                    "span": 62
+                    "span": 59
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 63
+                    "span": 60
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 64,
-                  "ty": 26
+                  "span": 61,
+                  "ty": 25
                 },
                 {
                   "mutability": "Not",
-                  "span": 65,
-                  "ty": 26
+                  "span": 62,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 56,
-                  "ty": 26
+                  "span": 53,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 52,
-                  "ty": 26
+                  "span": 49,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 52,
-                  "ty": 28
+                  "span": 49,
+                  "ty": 27
                 },
                 {
                   "mutability": "Mut",
-                  "span": 60,
-                  "ty": 26
+                  "span": 57,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 58,
-                  "ty": 26
+                  "span": 55,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 58,
-                  "ty": 28
+                  "span": 55,
+                  "ty": 27
                 },
                 {
                   "mutability": "Mut",
-                  "span": 61,
-                  "ty": 28
+                  "span": 58,
+                  "ty": 27
                 }
               ],
-              "span": 66,
+              "span": 63,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -2333,7 +2227,7 @@
                   "name": "n",
                   "source_info": {
                     "scope": 0,
-                    "span": 65
+                    "span": 62
                   },
                   "value": {
                     "Place": {
diff --git a/tests/integration/programs/float.smir.json.expected b/tests/integration/programs/float.smir.json.expected
index 778917c..6466afa 100644
--- a/tests/integration/programs/float.smir.json.expected
+++ b/tests/integration/programs/float.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
     [
-      0,
       {
         "Memory": {
           "align": 1,
@@ -45,7 +44,6 @@
       }
     ],
     [
-      1,
       {
         "Memory": {
           "align": 1,
@@ -91,55 +89,46 @@
   ],
   "functions": [
     [
-      0,
       {
         "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
-      13,
       {
         "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
-      14,
       {
         "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
-      19,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      20,
       {
         "IntrinsicSym": "black_box"
       }
     ],
     [
-      21,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      23,
       {
         "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
-      27,
       {
         "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
-      31,
       {
         "NoOpSym": ""
       }
@@ -168,12 +157,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -258,7 +241,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -269,12 +252,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -334,7 +311,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -363,51 +340,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -421,7 +398,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -431,7 +408,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -440,7 +417,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -455,7 +432,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -470,7 +447,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -485,7 +462,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -500,7 +477,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -532,19 +509,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -571,7 +548,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -596,7 +573,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -604,7 +581,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -613,7 +590,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -638,7 +615,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -646,7 +623,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -655,13 +632,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -670,42 +647,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -729,7 +670,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -743,7 +684,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -752,37 +693,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -792,27 +727,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -825,7 +755,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -848,7 +778,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -856,21 +786,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 30
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 5,
-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -908,7 +823,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -922,9 +837,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -932,7 +847,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -948,7 +863,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -962,9 +877,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -972,35 +887,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 36
+                    "span": 33
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 37,
+                  "span": 34,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 38,
+                  "span": 35,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 39,
+                  "span": 36,
                   "ty": 1
                 }
               ],
-              "span": 42,
+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1009,7 +924,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -1024,7 +939,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -1039,7 +954,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -1048,7 +963,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1100,9 +1015,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1110,35 +1025,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 22
+                  "span": 40,
+                  "ty": 21
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1177,35 +1092,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1251,7 +1166,7 @@
                           }
                         ]
                       },
-                      "span": 43
+                      "span": 40
                     }
                   ],
                   "terminator": {
@@ -1280,9 +1195,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1292,7 +1207,7 @@
                         }
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1308,14 +1223,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1331,40 +1246,40 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 24
+                  "span": 40,
+                  "ty": 23
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1387,23 +1302,23 @@
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 44
+                    "span": 41
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 44,
+                  "span": 41,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 44,
-                  "ty": 22
+                  "span": 41,
+                  "ty": 21
                 }
               ],
-              "span": 44,
+              "span": 41,
               "spread_arg": null,
               "var_debug_info": []
             }
@@ -1450,58 +1365,37 @@
                                   },
                                   "ty": 17
                                 },
-                                "span": 46,
+                                "span": 43,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 46
+                      "span": 43
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 45
+                    "span": 42
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 47,
+                  "span": 44,
                   "ty": 17
                 },
                 {
                   "mutability": "Not",
-                  "span": 48,
+                  "span": 45,
                   "ty": 1
                 }
               ],
-              "span": 49,
+              "span": 46,
               "spread_arg": null,
-              "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 48
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 4,
-                        "kind": "ZeroSized",
-                        "ty": 1
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
           "id": 5,
@@ -1547,16 +1441,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 25
+                                  "ty": 24
                                 },
-                                "span": 51,
+                                "span": 48,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 52
+                      "span": 49
                     },
                     {
                       "kind": {
@@ -1585,16 +1479,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 25
+                                  "ty": 24
                                 },
-                                "span": 53,
+                                "span": 50,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 54
+                      "span": 51
                     },
                     {
                       "kind": {
@@ -1622,7 +1516,7 @@
                           }
                         ]
                       },
-                      "span": 55
+                      "span": 52
                     },
                     {
                       "kind": {
@@ -1659,9 +1553,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 25
+                                    "ty": 24
                                   },
-                                  "span": 56,
+                                  "span": 53,
                                   "user_ty": null
                                 }
                               }
@@ -1669,7 +1563,7 @@
                           }
                         ]
                       },
-                      "span": 50
+                      "span": 47
                     }
                   ],
                   "terminator": {
@@ -1692,7 +1586,7 @@
                         }
                       }
                     },
-                    "span": 50
+                    "span": 47
                   }
                 },
                 {
@@ -1728,16 +1622,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 26
+                                  "ty": 25
                                 },
-                                "span": 58,
+                                "span": 55,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 59
+                      "span": 56
                     },
                     {
                       "kind": {
@@ -1770,16 +1664,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 26
+                                  "ty": 25
                                 },
-                                "span": 60,
+                                "span": 57,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 61
+                      "span": 58
                     },
                     {
                       "kind": {
@@ -1807,7 +1701,7 @@
                           }
                         ]
                       },
-                      "span": 62
+                      "span": 59
                     },
                     {
                       "kind": {
@@ -1848,9 +1742,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 26
+                                    "ty": 25
                                   },
-                                  "span": 63,
+                                  "span": 60,
                                   "user_ty": null
                                 }
                               }
@@ -1858,7 +1752,7 @@
                           }
                         ]
                       },
-                      "span": 57
+                      "span": 54
                     }
                   ],
                   "terminator": {
@@ -1881,7 +1775,7 @@
                         }
                       }
                     },
-                    "span": 57
+                    "span": 54
                   }
                 },
                 {
@@ -1926,9 +1820,9 @@
                                     }
                                   }
                                 },
-                                "ty": 28
+                                "ty": 27
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1942,9 +1836,9 @@
                             "const_": {
                               "id": 15,
                               "kind": "ZeroSized",
-                              "ty": 27
+                              "ty": 26
                             },
-                            "span": 64,
+                            "span": 61,
                             "user_ty": null
                           }
                         },
@@ -1952,14 +1846,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 64
+                    "span": 61
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 65
+                    "span": 62
                   }
                 },
                 {
@@ -2004,9 +1898,9 @@
                                     }
                                   }
                                 },
-                                "ty": 28
+                                "ty": 27
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -2020,9 +1914,9 @@
                             "const_": {
                               "id": 15,
                               "kind": "ZeroSized",
-                              "ty": 27
+                              "ty": 26
                             },
-                            "span": 66,
+                            "span": 63,
                             "user_ty": null
                           }
                         },
@@ -2030,68 +1924,68 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 66
+                    "span": 63
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 67,
+                  "span": 64,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 50,
-                  "ty": 29
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 55,
-                  "ty": 25
+                  "span": 47,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
                   "span": 52,
-                  "ty": 25
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 54,
-                  "ty": 25
+                  "span": 49,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 64,
-                  "ty": 30
+                  "span": 51,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 57,
+                  "span": 61,
                   "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 62,
-                  "ty": 26
+                  "span": 54,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
                   "span": 59,
-                  "ty": 26
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 61,
-                  "ty": 26
+                  "span": 56,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 66,
-                  "ty": 30
+                  "span": 58,
+                  "ty": 25
+                },
+                {
+                  "mutability": "Mut",
+                  "span": 63,
+                  "ty": 29
                 }
               ],
-              "span": 72,
+              "span": 69,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -2100,7 +1994,7 @@
                   "name": "a",
                   "source_info": {
                     "scope": 1,
-                    "span": 68
+                    "span": 65
                   },
                   "value": {
                     "Const": {
@@ -2121,9 +2015,9 @@
                             }
                           }
                         },
-                        "ty": 25
+                        "ty": 24
                       },
-                      "span": 51,
+                      "span": 48,
                       "user_ty": null
                     }
                   }
@@ -2134,7 +2028,7 @@
                   "name": "b",
                   "source_info": {
                     "scope": 2,
-                    "span": 69
+                    "span": 66
                   },
                   "value": {
                     "Const": {
@@ -2155,9 +2049,9 @@
                             }
                           }
                         },
-                        "ty": 25
+                        "ty": 24
                       },
-                      "span": 53,
+                      "span": 50,
                       "user_ty": null
                     }
                   }
@@ -2168,7 +2062,7 @@
                   "name": "c",
                   "source_info": {
                     "scope": 3,
-                    "span": 70
+                    "span": 67
                   },
                   "value": {
                     "Const": {
@@ -2193,9 +2087,9 @@
                             }
                           }
                         },
-                        "ty": 26
+                        "ty": 25
                       },
-                      "span": 58,
+                      "span": 55,
                       "user_ty": null
                     }
                   }
@@ -2206,7 +2100,7 @@
                   "name": "d",
                   "source_info": {
                     "scope": 4,
-                    "span": 71
+                    "span": 68
                   },
                   "value": {
                     "Const": {
@@ -2231,9 +2125,9 @@
                             }
                           }
                         },
-                        "ty": 26
+                        "ty": 25
                       },
-                      "span": 60,
+                      "span": 57,
                       "user_ty": null
                     }
                   }
diff --git a/tests/integration/programs/modulo.smir.json.expected b/tests/integration/programs/modulo.smir.json.expected
index c3c5441..145f9b9 100644
--- a/tests/integration/programs/modulo.smir.json.expected
+++ b/tests/integration/programs/modulo.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
     [
-      0,
       {
         "Memory": {
           "align": 1,
@@ -47,55 +46,46 @@
   ],
   "functions": [
     [
-      0,
       {
         "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
-      13,
       {
         "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
-      14,
       {
         "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
-      19,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      20,
       {
         "IntrinsicSym": "black_box"
       }
     ],
     [
-      21,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      23,
       {
         "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
-      25,
       {
         "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
-      29,
       {
         "NoOpSym": ""
       }
@@ -124,12 +114,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -214,7 +198,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -225,12 +209,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -290,7 +268,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -319,51 +297,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -377,7 +355,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -387,7 +365,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -396,7 +374,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -411,7 +389,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -426,7 +404,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -441,7 +419,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -456,7 +434,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -488,19 +466,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -527,7 +505,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -552,7 +530,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -560,7 +538,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -569,7 +547,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -594,7 +572,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -602,7 +580,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -611,13 +589,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -626,42 +604,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -685,7 +627,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -699,7 +641,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -708,37 +650,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -748,27 +684,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -781,7 +712,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -804,7 +735,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -812,21 +743,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 30
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 5,
-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -864,7 +780,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -878,9 +794,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -888,7 +804,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -904,7 +820,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -918,9 +834,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -928,35 +844,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 36
+                    "span": 33
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 37,
+                  "span": 34,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 38,
+                  "span": 35,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 39,
+                  "span": 36,
                   "ty": 1
                 }
               ],
-              "span": 42,
+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -965,7 +881,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -980,7 +896,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -995,7 +911,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -1004,7 +920,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1056,9 +972,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1066,35 +982,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 22
+                  "span": 40,
+                  "ty": 21
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1133,35 +1049,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1207,7 +1123,7 @@
                           }
                         ]
                       },
-                      "span": 43
+                      "span": 40
                     }
                   ],
                   "terminator": {
@@ -1236,9 +1152,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1248,7 +1164,7 @@
                         }
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1264,14 +1180,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1287,40 +1203,40 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 24
+                  "span": 40,
+                  "ty": 23
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1343,23 +1259,23 @@
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 44
+                    "span": 41
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 44,
+                  "span": 41,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 44,
-                  "ty": 22
+                  "span": 41,
+                  "ty": 21
                 }
               ],
-              "span": 44,
+              "span": 41,
               "spread_arg": null,
               "var_debug_info": []
             }
@@ -1406,58 +1322,37 @@
                                   },
                                   "ty": 17
                                 },
-                                "span": 46,
+                                "span": 43,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 46
+                      "span": 43
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 45
+                    "span": 42
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 47,
+                  "span": 44,
                   "ty": 17
                 },
                 {
                   "mutability": "Not",
-                  "span": 48,
+                  "span": 45,
                   "ty": 1
                 }
               ],
-              "span": 49,
+              "span": 46,
               "spread_arg": null,
-              "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 48
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 4,
-                        "kind": "ZeroSized",
-                        "ty": 1
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
           "id": 5,
@@ -1507,7 +1402,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 52,
+                                  "span": 49,
                                   "user_ty": null
                                 }
                               },
@@ -1532,7 +1427,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 51,
+                                  "span": 48,
                                   "user_ty": null
                                 }
                               }
@@ -1540,7 +1435,7 @@
                           }
                         ]
                       },
-                      "span": 51
+                      "span": 48
                     }
                   ],
                   "terminator": {
@@ -1575,7 +1470,7 @@
                                 },
                                 "ty": 16
                               },
-                              "span": 50,
+                              "span": 47,
                               "user_ty": null
                             }
                           }
@@ -1584,7 +1479,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 51
+                    "span": 48
                   }
                 },
                 {
@@ -1620,7 +1515,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 52,
+                                  "span": 49,
                                   "user_ty": null
                                 }
                               },
@@ -1645,7 +1540,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 51,
+                                  "span": 48,
                                   "user_ty": null
                                 }
                               }
@@ -1653,7 +1548,7 @@
                           }
                         ]
                       },
-                      "span": 51
+                      "span": 48
                     },
                     {
                       "kind": {
@@ -1686,7 +1581,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 50,
+                                  "span": 47,
                                   "user_ty": null
                                 }
                               },
@@ -1711,7 +1606,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 51,
+                                  "span": 48,
                                   "user_ty": null
                                 }
                               }
@@ -1719,7 +1614,7 @@
                           }
                         ]
                       },
-                      "span": 51
+                      "span": 48
                     },
                     {
                       "kind": {
@@ -1747,7 +1642,7 @@
                           }
                         ]
                       },
-                      "span": 51
+                      "span": 48
                     }
                   ],
                   "terminator": {
@@ -1784,7 +1679,7 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 50,
+                                "span": 47,
                                 "user_ty": null
                               }
                             },
@@ -1809,7 +1704,7 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 52,
+                                "span": 49,
                                 "user_ty": null
                               }
                             }
@@ -1819,7 +1714,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 51
+                    "span": 48
                   }
                 },
                 {
@@ -1855,7 +1750,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 50,
+                                  "span": 47,
                                   "user_ty": null
                                 }
                               },
@@ -1880,7 +1775,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 52,
+                                  "span": 49,
                                   "user_ty": null
                                 }
                               }
@@ -1888,7 +1783,7 @@
                           }
                         ]
                       },
-                      "span": 51
+                      "span": 48
                     }
                   ],
                   "terminator": {
@@ -1911,14 +1806,14 @@
                         }
                       }
                     },
-                    "span": 53
+                    "span": 50
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 54
+                    "span": 51
                   }
                 },
                 {
@@ -1963,9 +1858,9 @@
                                     }
                                   }
                                 },
-                                "ty": 26
+                                "ty": 25
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1979,9 +1874,9 @@
                             "const_": {
                               "id": 14,
                               "kind": "ZeroSized",
-                              "ty": 25
+                              "ty": 24
                             },
-                            "span": 55,
+                            "span": 52,
                             "user_ty": null
                           }
                         },
@@ -1989,48 +1884,48 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 55
+                    "span": 52
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 56,
+                  "span": 53,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 51,
+                  "span": 48,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 51,
-                  "ty": 27
+                  "span": 48,
+                  "ty": 26
                 },
                 {
                   "mutability": "Mut",
-                  "span": 51,
-                  "ty": 27
+                  "span": 48,
+                  "ty": 26
                 },
                 {
                   "mutability": "Mut",
-                  "span": 51,
-                  "ty": 27
+                  "span": 48,
+                  "ty": 26
                 },
                 {
                   "mutability": "Mut",
-                  "span": 51,
-                  "ty": 27
+                  "span": 48,
+                  "ty": 26
                 },
                 {
                   "mutability": "Mut",
-                  "span": 55,
-                  "ty": 28
+                  "span": 52,
+                  "ty": 27
                 }
               ],
-              "span": 57,
+              "span": 54,
               "spread_arg": null,
               "var_debug_info": []
             }
diff --git a/tests/integration/programs/mutual_recursion.smir.json.expected b/tests/integration/programs/mutual_recursion.smir.json.expected
index d142f6b..33812a9 100644
--- a/tests/integration/programs/mutual_recursion.smir.json.expected
+++ b/tests/integration/programs/mutual_recursion.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
     [
-      0,
       {
         "Memory": {
           "align": 1,
@@ -46,67 +45,56 @@
   ],
   "functions": [
     [
-      0,
       {
         "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
-      13,
       {
         "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
-      14,
       {
         "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
-      19,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      20,
       {
         "IntrinsicSym": "black_box"
       }
     ],
     [
-      21,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      23,
       {
         "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
-      27,
       {
         "NormalSym": "_ZN16mutual_recursion6is_odd17h"
       }
     ],
     [
-      29,
       {
         "NormalSym": "_ZN16mutual_recursion7is_even17h"
       }
     ],
     [
-      30,
       {
         "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
-      33,
       {
         "NoOpSym": ""
       }
@@ -146,9 +134,9 @@
                                     }
                                   }
                                 },
-                                "ty": 26
+                                "ty": 25
                               },
-                              "span": 73,
+                              "span": 70,
                               "user_ty": null
                             }
                           }
@@ -162,9 +150,9 @@
                             "const_": {
                               "id": 13,
                               "kind": "ZeroSized",
-                              "ty": 29
+                              "ty": 28
                             },
-                            "span": 72,
+                            "span": 69,
                             "user_ty": null
                           }
                         },
@@ -172,7 +160,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 74
+                    "span": 71
                   }
                 },
                 {
@@ -197,14 +185,14 @@
                         }
                       }
                     },
-                    "span": 75
+                    "span": 72
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 76
+                    "span": 73
                   }
                 },
                 {
@@ -249,9 +237,9 @@
                                     }
                                   }
                                 },
-                                "ty": 31
+                                "ty": 30
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -265,9 +253,9 @@
                             "const_": {
                               "id": 15,
                               "kind": "ZeroSized",
-                              "ty": 30
+                              "ty": 29
                             },
-                            "span": 77,
+                            "span": 74,
                             "user_ty": null
                           }
                         },
@@ -275,28 +263,28 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 77
+                    "span": 74
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 78,
+                  "span": 75,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 79,
-                  "ty": 25
+                  "span": 76,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 77,
-                  "ty": 32
+                  "span": 74,
+                  "ty": 31
                 }
               ],
-              "span": 80,
+              "span": 77,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -305,7 +293,7 @@
                   "name": "ans",
                   "source_info": {
                     "scope": 1,
-                    "span": 79
+                    "span": 76
                   },
                   "value": {
                     "Place": {
@@ -353,7 +341,7 @@
                         }
                       }
                     },
-                    "span": 61
+                    "span": 58
                   }
                 },
                 {
@@ -382,16 +370,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 25
+                                  "ty": 24
                                 },
-                                "span": 63,
+                                "span": 60,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 63
+                      "span": 60
                     }
                   ],
                   "terminator": {
@@ -400,7 +388,7 @@
                         "target": 4
                       }
                     },
-                    "span": 62
+                    "span": 59
                   }
                 },
                 {
@@ -440,9 +428,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 26
+                                    "ty": 25
                                   },
-                                  "span": 64,
+                                  "span": 61,
                                   "user_ty": null
                                 }
                               }
@@ -450,7 +438,7 @@
                           }
                         ]
                       },
-                      "span": 65
+                      "span": 62
                     }
                   ],
                   "terminator": {
@@ -463,7 +451,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -498,9 +486,9 @@
                                       }
                                     }
                                   },
-                                  "ty": 26
+                                  "ty": 25
                                 },
-                                "span": 64,
+                                "span": 61,
                                 "user_ty": null
                               }
                             }
@@ -510,7 +498,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 65
+                    "span": 62
                   }
                 },
                 {
@@ -530,7 +518,7 @@
                                   {
                                     "Field": [
                                       0,
-                                      26
+                                      25
                                     ]
                                   }
                                 ]
@@ -539,7 +527,7 @@
                           }
                         ]
                       },
-                      "span": 65
+                      "span": 62
                     }
                   ],
                   "terminator": {
@@ -562,9 +550,9 @@
                             "const_": {
                               "id": 13,
                               "kind": "ZeroSized",
-                              "ty": 29
+                              "ty": 28
                             },
-                            "span": 66,
+                            "span": 63,
                             "user_ty": null
                           }
                         },
@@ -572,40 +560,40 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 67
+                    "span": 64
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 68
+                    "span": 65
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 69,
-                  "ty": 25
+                  "span": 66,
+                  "ty": 24
                 },
                 {
                   "mutability": "Not",
-                  "span": 70,
-                  "ty": 26
+                  "span": 67,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 65,
-                  "ty": 26
+                  "span": 62,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 65,
-                  "ty": 28
+                  "span": 62,
+                  "ty": 27
                 }
               ],
-              "span": 71,
+              "span": 68,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -614,7 +602,7 @@
                   "name": "n",
                   "source_info": {
                     "scope": 0,
-                    "span": 70
+                    "span": 67
                   },
                   "value": {
                     "Place": {
@@ -662,7 +650,7 @@
                         }
                       }
                     },
-                    "span": 50
+                    "span": 47
                   }
                 },
                 {
@@ -691,16 +679,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 25
+                                  "ty": 24
                                 },
-                                "span": 52,
+                                "span": 49,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 52
+                      "span": 49
                     }
                   ],
                   "terminator": {
@@ -709,7 +697,7 @@
                         "target": 4
                       }
                     },
-                    "span": 51
+                    "span": 48
                   }
                 },
                 {
@@ -749,9 +737,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 26
+                                    "ty": 25
                                   },
-                                  "span": 53,
+                                  "span": 50,
                                   "user_ty": null
                                 }
                               }
@@ -759,7 +747,7 @@
                           }
                         ]
                       },
-                      "span": 54
+                      "span": 51
                     }
                   ],
                   "terminator": {
@@ -772,7 +760,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -807,9 +795,9 @@
                                       }
                                     }
                                   },
-                                  "ty": 26
+                                  "ty": 25
                                 },
-                                "span": 53,
+                                "span": 50,
                                 "user_ty": null
                               }
                             }
@@ -819,7 +807,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 54
+                    "span": 51
                   }
                 },
                 {
@@ -839,7 +827,7 @@
                                   {
                                     "Field": [
                                       0,
-                                      26
+                                      25
                                     ]
                                   }
                                 ]
@@ -848,7 +836,7 @@
                           }
                         ]
                       },
-                      "span": 54
+                      "span": 51
                     }
                   ],
                   "terminator": {
@@ -871,9 +859,9 @@
                             "const_": {
                               "id": 11,
                               "kind": "ZeroSized",
-                              "ty": 27
+                              "ty": 26
                             },
-                            "span": 55,
+                            "span": 52,
                             "user_ty": null
                           }
                         },
@@ -881,40 +869,40 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 56
+                    "span": 53
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 57
+                    "span": 54
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 58,
-                  "ty": 25
+                  "span": 55,
+                  "ty": 24
                 },
                 {
                   "mutability": "Not",
-                  "span": 59,
-                  "ty": 26
+                  "span": 56,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 54,
-                  "ty": 26
+                  "span": 51,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 54,
-                  "ty": 28
+                  "span": 51,
+                  "ty": 27
                 }
               ],
-              "span": 60,
+              "span": 57,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -923,7 +911,7 @@
                   "name": "n",
                   "source_info": {
                     "scope": 0,
-                    "span": 59
+                    "span": 56
                   },
                   "value": {
                     "Place": {
@@ -963,12 +951,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -1053,7 +1035,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -1064,12 +1046,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -1129,7 +1105,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -1158,51 +1134,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -1216,7 +1192,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -1226,7 +1202,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1235,7 +1211,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -1250,7 +1226,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -1265,7 +1241,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -1280,7 +1256,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -1295,7 +1271,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -1327,19 +1303,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -1366,7 +1342,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -1391,7 +1367,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -1399,7 +1375,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -1408,7 +1384,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -1433,7 +1409,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -1441,7 +1417,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -1450,13 +1426,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1465,42 +1441,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -1524,7 +1464,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1538,7 +1478,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -1547,37 +1487,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -1587,27 +1521,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -1620,7 +1549,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -1643,7 +1572,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -1651,21 +1580,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 30
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 5,
-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -1703,7 +1617,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1717,9 +1631,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -1727,7 +1641,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -1743,7 +1657,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
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@@ -1757,9 +1671,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -1767,35 +1681,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
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                 {
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                   "terminator": {
                     "kind": "Return",
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@@ -1804,7 +1718,7 @@
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@@ -1819,7 +1733,7 @@
                   "name": "result",
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-                    "span": 40
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@@ -1834,7 +1748,7 @@
                   "name": "dummy",
                   "source_info": {
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-                    "span": 41
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                   "value": {
                     "Const": {
@@ -1843,7 +1757,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
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                       "user_ty": null
                     }
                   }
@@ -1895,9 +1809,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
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@@ -1905,35 +1819,35 @@
                         "unwind": "Continue"
                       }
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-                    "span": 43
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                 {
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                   "terminator": {
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                 {
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-                  "ty": 22
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@@ -1944,6 +1858,73 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
+    {
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+      "mono_item_kind": {
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+          "body": [
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+              "blocks": [
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+                  "terminator": {
+                    "kind": {
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+                        "destination": {
+                          "local": 0,
+                          "projection": []
+                        },
+                        "func": {
+                          "Move": {
+                            "local": 1,
+                            "projection": []
+                          }
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+                        "target": 1,
+                        "unwind": "Continue"
+                      }
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+              "spread_arg": 2,
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+          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
+        }
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+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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@@ -1979,7 +1960,7 @@
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@@ -2008,9 +1989,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
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@@ -2020,7 +2001,7 @@
                         }
                       }
                     },
-                    "span": 43
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@@ -2036,14 +2017,14 @@
                         "unwind": "Continue"
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@@ -2059,40 +2040,40 @@
                         "unwind": "Terminate"
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                   }
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                   "mutability": "Mut",
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-                  "ty": 24
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+                  "ty": 23
                 }
               ],
-              "span": 43,
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@@ -2103,73 +2084,6 @@
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@@ -2182,23 +2096,23 @@
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@@ -2245,58 +2159,37 @@
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-                }
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             }
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diff --git a/tests/integration/programs/option-construction.smir.json.expected b/tests/integration/programs/option-construction.smir.json.expected
index 25a95ae..7f7aa4a 100644
--- a/tests/integration/programs/option-construction.smir.json.expected
+++ b/tests/integration/programs/option-construction.smir.json.expected
@@ -2,61 +2,51 @@
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       {
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       {
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         "NoOpSym": ""
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@@ -88,7 +78,7 @@
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@@ -115,9 +105,9 @@
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-                                      "ty": 26
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-                                    "span": 62,
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@@ -126,7 +116,7 @@
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@@ -143,7 +133,7 @@
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@@ -155,7 +145,7 @@
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@@ -178,9 +168,9 @@
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-                              "ty": 29
+                              "ty": 28
                             },
-                            "span": 60,
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@@ -188,40 +178,40 @@
                         "unwind": "Continue"
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@@ -230,7 +220,7 @@
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@@ -245,7 +235,7 @@
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@@ -260,7 +250,7 @@
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@@ -300,12 +290,6 @@
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@@ -390,7 +374,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
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                                   "projection": []
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@@ -401,12 +385,6 @@
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@@ -466,7 +444,7 @@
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@@ -495,51 +473,51 @@
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+                    "span": 4
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               "locals": [
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@@ -553,7 +531,7 @@
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@@ -563,7 +541,7 @@
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@@ -572,7 +550,7 @@
                   "name": "main",
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@@ -587,7 +565,7 @@
                   "name": "argc",
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@@ -602,7 +580,7 @@
                   "name": "argv",
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@@ -617,7 +595,7 @@
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@@ -632,7 +610,7 @@
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@@ -664,19 +642,19 @@
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@@ -703,7 +681,7 @@
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@@ -728,7 +706,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
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@@ -736,7 +714,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
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@@ -745,7 +723,7 @@
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@@ -770,7 +748,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
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@@ -778,7 +756,7 @@
                         "unwind": "Continue"
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@@ -787,13 +765,13 @@
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@@ -802,42 +780,6 @@
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                             "projection": []
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-                              {
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-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
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                           {
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@@ -861,7 +803,7 @@
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@@ -875,7 +817,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
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@@ -884,37 +826,31 @@
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               ],
               "locals": [
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+                  "span": 26,
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@@ -924,27 +860,22 @@
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                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -957,7 +888,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -980,7 +911,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -988,21 +919,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 30
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 5,
-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -1040,7 +956,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1054,9 +970,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -1064,7 +980,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -1080,7 +996,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1094,9 +1010,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -1104,35 +1020,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 36
+                    "span": 33
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 37,
+                  "span": 34,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 38,
+                  "span": 35,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 39,
+                  "span": 36,
                   "ty": 1
                 }
               ],
-              "span": 42,
+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1141,7 +1057,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -1156,7 +1072,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -1171,7 +1087,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -1180,7 +1096,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1232,9 +1148,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1242,35 +1158,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 22
+                  "span": 40,
+                  "ty": 21
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1309,35 +1225,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1383,7 +1299,7 @@
                           }
                         ]
                       },
-                      "span": 43
+                      "span": 40
                     }
                   ],
                   "terminator": {
@@ -1412,9 +1328,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1424,7 +1340,7 @@
                         }
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1440,14 +1356,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1463,40 +1379,40 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 24
+                  "span": 40,
+                  "ty": 23
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1519,23 +1435,23 @@
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 44
+                    "span": 41
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 44,
+                  "span": 41,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 44,
-                  "ty": 22
+                  "span": 41,
+                  "ty": 21
                 }
               ],
-              "span": 44,
+              "span": 41,
               "spread_arg": null,
               "var_debug_info": []
             }
@@ -1571,7 +1487,7 @@
                           }
                         ]
                       },
-                      "span": 46
+                      "span": 43
                     }
                   ],
                   "terminator": {
@@ -1598,14 +1514,14 @@
                         }
                       }
                     },
-                    "span": 45
+                    "span": 42
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Unreachable",
-                    "span": 46
+                    "span": 43
                   }
                 },
                 {
@@ -1623,9 +1539,9 @@
                             "const_": {
                               "id": 8,
                               "kind": "ZeroSized",
-                              "ty": 25
+                              "ty": 24
                             },
-                            "span": 47,
+                            "span": 44,
                             "user_ty": null
                           }
                         },
@@ -1633,7 +1549,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 48
+                    "span": 45
                   }
                 },
                 {
@@ -1656,7 +1572,7 @@
                                   {
                                     "Field": [
                                       0,
-                                      26
+                                      25
                                     ]
                                   }
                                 ]
@@ -1665,38 +1581,38 @@
                           }
                         ]
                       },
-                      "span": 50
+                      "span": 47
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 49
+                    "span": 46
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 51,
-                  "ty": 26
+                  "span": 48,
+                  "ty": 25
                 },
                 {
                   "mutability": "Not",
-                  "span": 52,
-                  "ty": 27
+                  "span": 49,
+                  "ty": 26
                 },
                 {
                   "mutability": "Mut",
-                  "span": 53,
+                  "span": 50,
                   "ty": 6
                 },
                 {
                   "mutability": "Mut",
-                  "span": 48,
-                  "ty": 28
+                  "span": 45,
+                  "ty": 27
                 }
               ],
-              "span": 54,
+              "span": 51,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1705,7 +1621,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 0,
-                    "span": 52
+                    "span": 49
                   },
                   "value": {
                     "Place": {
@@ -1720,7 +1636,7 @@
                   "name": "val",
                   "source_info": {
                     "scope": 1,
-                    "span": 50
+                    "span": 47
                   },
                   "value": {
                     "Place": {
@@ -1774,58 +1690,37 @@
                                   },
                                   "ty": 17
                                 },
-                                "span": 56,
+                                "span": 53,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 56
+                      "span": 53
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 55
+                    "span": 52
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 57,
+                  "span": 54,
                   "ty": 17
                 },
                 {
                   "mutability": "Not",
-                  "span": 58,
+                  "span": 55,
                   "ty": 1
                 }
               ],
-              "span": 59,
+              "span": 56,
               "spread_arg": null,
-              "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 58
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 4,
-                        "kind": "ZeroSized",
-                        "ty": 1
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
           "id": 6,
diff --git a/tests/integration/programs/primitive-type-bounds.smir.json.expected b/tests/integration/programs/primitive-type-bounds.smir.json.expected
index 275ad21..b68ee58 100644
--- a/tests/integration/programs/primitive-type-bounds.smir.json.expected
+++ b/tests/integration/programs/primitive-type-bounds.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
     [
-      0,
       {
         "Memory": {
           "align": 1,
@@ -41,55 +40,46 @@
   ],
   "functions": [
     [
-      0,
       {
         "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
-      13,
       {
         "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
-      14,
       {
         "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
-      19,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      20,
       {
         "IntrinsicSym": "black_box"
       }
     ],
     [
-      21,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      23,
       {
         "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
-      27,
       {
         "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
-      31,
       {
         "NoOpSym": ""
       }
@@ -135,9 +125,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 26
+                                    "ty": 25
                                   },
-                                  "span": 50,
+                                  "span": 47,
                                   "user_ty": null
                                 }
                               },
@@ -160,9 +150,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 26
+                                    "ty": 25
                                   },
-                                  "span": 51,
+                                  "span": 48,
                                   "user_ty": null
                                 }
                               }
@@ -170,7 +160,7 @@
                           }
                         ]
                       },
-                      "span": 52
+                      "span": 49
                     }
                   ],
                   "terminator": {
@@ -183,7 +173,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -212,9 +202,9 @@
                                       }
                                     }
                                   },
-                                  "ty": 26
+                                  "ty": 25
                                 },
-                                "span": 50,
+                                "span": 47,
                                 "user_ty": null
                               }
                             },
@@ -237,9 +227,9 @@
                                       }
                                     }
                                   },
-                                  "ty": 26
+                                  "ty": 25
                                 },
-                                "span": 51,
+                                "span": 48,
                                 "user_ty": null
                               }
                             }
@@ -249,7 +239,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 52
+                    "span": 49
                   }
                 },
                 {
@@ -269,7 +259,7 @@
                                   {
                                     "Field": [
                                       0,
-                                      26
+                                      25
                                     ]
                                   }
                                 ]
@@ -278,7 +268,7 @@
                           }
                         ]
                       },
-                      "span": 52
+                      "span": 49
                     },
                     {
                       "kind": {
@@ -307,16 +297,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 26
+                                  "ty": 25
                                 },
-                                "span": 54,
+                                "span": 51,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 55
+                      "span": 52
                     },
                     {
                       "kind": {
@@ -344,7 +334,7 @@
                           }
                         ]
                       },
-                      "span": 53
+                      "span": 50
                     }
                   ],
                   "terminator": {
@@ -367,14 +357,14 @@
                         }
                       }
                     },
-                    "span": 53
+                    "span": 50
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 56
+                    "span": 53
                   }
                 },
                 {
@@ -419,9 +409,9 @@
                                     }
                                   }
                                 },
-                                "ty": 28
+                                "ty": 27
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -435,9 +425,9 @@
                             "const_": {
                               "id": 12,
                               "kind": "ZeroSized",
-                              "ty": 27
+                              "ty": 26
                             },
-                            "span": 57,
+                            "span": 54,
                             "user_ty": null
                           }
                         },
@@ -445,43 +435,43 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 57
+                    "span": 54
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 58,
+                  "span": 55,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 59,
-                  "ty": 26
+                  "span": 56,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 52,
-                  "ty": 29
+                  "span": 49,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
-                  "span": 53,
-                  "ty": 25
+                  "span": 50,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 55,
-                  "ty": 26
+                  "span": 52,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 57,
-                  "ty": 30
+                  "span": 54,
+                  "ty": 29
                 }
               ],
-              "span": 61,
+              "span": 58,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -490,7 +480,7 @@
                   "name": "a",
                   "source_info": {
                     "scope": 1,
-                    "span": 60
+                    "span": 57
                   },
                   "value": {
                     "Const": {
@@ -511,9 +501,9 @@
                             }
                           }
                         },
-                        "ty": 26
+                        "ty": 25
                       },
-                      "span": 54,
+                      "span": 51,
                       "user_ty": null
                     }
                   }
@@ -524,7 +514,7 @@
                   "name": "b",
                   "source_info": {
                     "scope": 2,
-                    "span": 59
+                    "span": 56
                   },
                   "value": {
                     "Place": {
@@ -564,12 +554,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -654,7 +638,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -665,12 +649,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -730,7 +708,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -759,51 +737,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -817,7 +795,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -827,7 +805,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -836,7 +814,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -851,7 +829,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -866,7 +844,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -881,7 +859,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -896,7 +874,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -928,19 +906,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -967,7 +945,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -992,7 +970,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -1000,7 +978,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -1009,7 +987,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -1034,7 +1012,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -1042,7 +1020,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -1051,13 +1029,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1066,42 +1044,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
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-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -1125,7 +1067,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1139,7 +1081,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -1148,37 +1090,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
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                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -1188,27 +1124,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
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                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -1221,7 +1152,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -1244,7 +1175,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -1252,21 +1183,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
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-                    "span": 30
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-                    "Place": {
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-                      "projection": []
-                    }
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                 }
               ]
             }
@@ -1304,7 +1220,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
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                               "user_ty": null
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                           }
@@ -1318,9 +1234,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
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                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
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@@ -1328,7 +1244,7 @@
                         "unwind": "Continue"
                       }
                     },
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                   }
                 },
                 {
@@ -1344,7 +1260,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
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                               "user_ty": null
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@@ -1358,9 +1274,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
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@@ -1368,35 +1284,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
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@@ -1405,7 +1321,7 @@
                   "name": "f",
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-                    "span": 38
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                     "Place": {
@@ -1420,7 +1336,7 @@
                   "name": "result",
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                     "scope": 1,
-                    "span": 40
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                     "Place": {
@@ -1435,7 +1351,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
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                   "value": {
                     "Const": {
@@ -1444,7 +1360,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
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                       "user_ty": null
                     }
                   }
@@ -1496,9 +1412,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
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@@ -1506,35 +1422,35 @@
                         "unwind": "Continue"
                       }
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-                    "span": 43
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                   }
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                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
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                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 22
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                 {
                   "mutability": "Not",
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-              "span": 43,
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@@ -1545,73 +1461,6 @@
       },
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@@ -1647,7 +1496,7 @@
                           }
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@@ -1676,9 +1525,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
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-                            "span": 43,
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                             "user_ty": null
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@@ -1688,7 +1537,7 @@
                         }
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-                    "span": 43
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@@ -1704,14 +1553,14 @@
                         "unwind": "Continue"
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@@ -1727,40 +1576,40 @@
                         "unwind": "Terminate"
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@@ -1771,6 +1620,73 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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+                            "projection": []
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+                        "unwind": "Continue"
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+          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
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@@ -1783,23 +1699,23 @@
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@@ -1846,58 +1762,37 @@
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-                                "span": 46,
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             }
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diff --git a/tests/integration/programs/recursion-simple-match.smir.json.expected b/tests/integration/programs/recursion-simple-match.smir.json.expected
index cb4dda8..6e38528 100644
--- a/tests/integration/programs/recursion-simple-match.smir.json.expected
+++ b/tests/integration/programs/recursion-simple-match.smir.json.expected
@@ -1,7 +1,6 @@
 {
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     [
-      0,
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@@ -44,61 +43,51 @@
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       {
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       }
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       {
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       }
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       {
         "NormalSym": "_ZN4core9panicking5panic17h"
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       {
         "NoOpSym": ""
       }
@@ -135,7 +124,7 @@
                         }
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-                    "span": 50
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                   }
                 },
                 {
@@ -175,9 +164,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 26
+                                    "ty": 25
                                   },
-                                  "span": 51,
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                                   "user_ty": null
                                 }
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@@ -185,7 +174,7 @@
                           }
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-                      "span": 52
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                     }
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                   "terminator": {
@@ -198,7 +187,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -233,9 +222,9 @@
                                       }
                                     }
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-                                  "ty": 26
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                                 },
-                                "span": 51,
+                                "span": 48,
                                 "user_ty": null
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@@ -245,7 +234,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 52
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                   }
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                 {
@@ -277,16 +266,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 26
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@@ -295,7 +284,7 @@
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@@ -315,7 +304,7 @@
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@@ -324,7 +313,7 @@
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@@ -347,9 +336,9 @@
                             "const_": {
                               "id": 11,
                               "kind": "ZeroSized",
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                             },
-                            "span": 54,
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                             "user_ty": null
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@@ -357,7 +346,7 @@
                         "unwind": "Continue"
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-                    "span": 55
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@@ -388,7 +377,7 @@
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@@ -401,7 +390,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
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@@ -429,7 +418,7 @@
                         "unwind": "Continue"
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-                    "span": 56
+                    "span": 53
                   }
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                 {
@@ -449,7 +438,7 @@
                                   {
                                     "Field": [
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-                                      26
+                                      25
                                     ]
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@@ -458,7 +447,7 @@
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                     }
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@@ -467,50 +456,50 @@
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                   }
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                 {
                   "mutability": "Mut",
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-                  "ty": 26
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+                  "ty": 25
                 },
                 {
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-                  "ty": 26
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                 },
                 {
                   "mutability": "Mut",
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-                  "ty": 26
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                 },
                 {
                   "mutability": "Mut",
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-                  "ty": 26
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                 },
                 {
                   "mutability": "Mut",
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                 {
                   "mutability": "Mut",
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-                  "ty": 28
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@@ -519,7 +508,7 @@
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                   },
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                     "Place": {
@@ -570,9 +559,9 @@
                                     }
                                   }
                                 },
-                                "ty": 26
+                                "ty": 25
                               },
-                              "span": 63,
+                              "span": 60,
                               "user_ty": null
                             }
                           }
@@ -586,9 +575,9 @@
                             "const_": {
                               "id": 11,
                               "kind": "ZeroSized",
-                              "ty": 27
+                              "ty": 26
                             },
-                            "span": 62,
+                            "span": 59,
                             "user_ty": null
                           }
                         },
@@ -596,7 +585,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 64
+                    "span": 61
                   }
                 },
                 {
@@ -621,14 +610,14 @@
                         }
                       }
                     },
-                    "span": 65
+                    "span": 62
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 66
+                    "span": 63
                   }
                 },
                 {
@@ -673,9 +662,9 @@
                                     }
                                   }
                                 },
-                                "ty": 30
+                                "ty": 29
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -689,9 +678,9 @@
                             "const_": {
                               "id": 13,
                               "kind": "ZeroSized",
-                              "ty": 29
+                              "ty": 28
                             },
-                            "span": 67,
+                            "span": 64,
                             "user_ty": null
                           }
                         },
@@ -699,28 +688,28 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 67
+                    "span": 64
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 68,
+                  "span": 65,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 69,
-                  "ty": 26
+                  "span": 66,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 67,
-                  "ty": 31
+                  "span": 64,
+                  "ty": 30
                 }
               ],
-              "span": 70,
+              "span": 67,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -729,7 +718,7 @@
                   "name": "ans",
                   "source_info": {
                     "scope": 1,
-                    "span": 69
+                    "span": 66
                   },
                   "value": {
                     "Place": {
@@ -769,12 +758,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -859,7 +842,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -870,12 +853,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -935,7 +912,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -964,51 +941,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -1022,7 +999,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -1032,7 +1009,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1041,7 +1018,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -1056,7 +1033,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -1071,7 +1048,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -1086,7 +1063,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -1101,7 +1078,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -1133,19 +1110,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -1172,7 +1149,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -1197,7 +1174,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -1205,7 +1182,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -1214,7 +1191,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -1239,7 +1216,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -1247,7 +1224,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -1256,13 +1233,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1271,42 +1248,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -1330,7 +1271,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1344,7 +1285,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -1353,37 +1294,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -1393,27 +1328,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -1426,7 +1356,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -1449,7 +1379,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -1457,21 +1387,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 30
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 5,
-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -1509,7 +1424,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1523,9 +1438,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -1533,7 +1448,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -1549,7 +1464,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1563,9 +1478,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -1573,35 +1488,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 36
+                    "span": 33
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 37,
+                  "span": 34,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 38,
+                  "span": 35,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 39,
+                  "span": 36,
                   "ty": 1
                 }
               ],
-              "span": 42,
+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1610,7 +1525,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -1625,7 +1540,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -1640,7 +1555,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -1649,7 +1564,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1701,9 +1616,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1711,35 +1626,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 22
+                  "span": 40,
+                  "ty": 21
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1785,7 +1700,7 @@
                           }
                         ]
                       },
-                      "span": 43
+                      "span": 40
                     }
                   ],
                   "terminator": {
@@ -1814,9 +1729,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1826,7 +1741,7 @@
                         }
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1842,14 +1757,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1865,40 +1780,40 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 24
+                  "span": 40,
+                  "ty": 23
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1937,35 +1852,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1988,23 +1903,23 @@
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 44
+                    "span": 41
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 44,
+                  "span": 41,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 44,
-                  "ty": 22
+                  "span": 41,
+                  "ty": 21
                 }
               ],
-              "span": 44,
+              "span": 41,
               "spread_arg": null,
               "var_debug_info": []
             }
@@ -2051,58 +1966,37 @@
                                   },
                                   "ty": 17
                                 },
-                                "span": 46,
+                                "span": 43,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 46
+                      "span": 43
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 45
+                    "span": 42
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 47,
+                  "span": 44,
                   "ty": 17
                 },
                 {
                   "mutability": "Not",
-                  "span": 48,
+                  "span": 45,
                   "ty": 1
                 }
               ],
-              "span": 49,
+              "span": 46,
               "spread_arg": null,
-              "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 48
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 4,
-                        "kind": "ZeroSized",
-                        "ty": 1
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
           "id": 5,
diff --git a/tests/integration/programs/recursion-simple.smir.json.expected b/tests/integration/programs/recursion-simple.smir.json.expected
index 1aa246a..c548d35 100644
--- a/tests/integration/programs/recursion-simple.smir.json.expected
+++ b/tests/integration/programs/recursion-simple.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
     [
-      0,
       {
         "Memory": {
           "align": 1,
@@ -44,61 +43,51 @@
   ],
   "functions": [
     [
-      0,
       {
         "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
-      13,
       {
         "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
-      14,
       {
         "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
-      19,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      20,
       {
         "IntrinsicSym": "black_box"
       }
     ],
     [
-      21,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      23,
       {
         "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
-      27,
       {
         "NormalSym": "_ZN16recursion_simple12sum_to_n_rec17h"
       }
     ],
     [
-      29,
       {
         "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
-      32,
       {
         "NoOpSym": ""
       }
@@ -135,7 +124,7 @@
                         }
                       }
                     },
-                    "span": 50
+                    "span": 47
                   }
                 },
                 {
@@ -167,16 +156,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 25
+                                  "ty": 24
                                 },
-                                "span": 52,
+                                "span": 49,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 52
+                      "span": 49
                     }
                   ],
                   "terminator": {
@@ -185,7 +174,7 @@
                         "target": 6
                       }
                     },
-                    "span": 51
+                    "span": 48
                   }
                 },
                 {
@@ -225,9 +214,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 25
+                                    "ty": 24
                                   },
-                                  "span": 53,
+                                  "span": 50,
                                   "user_ty": null
                                 }
                               }
@@ -235,7 +224,7 @@
                           }
                         ]
                       },
-                      "span": 54
+                      "span": 51
                     }
                   ],
                   "terminator": {
@@ -248,7 +237,7 @@
                               {
                                 "Field": [
                                   1,
-                                  26
+                                  25
                                 ]
                               }
                             ]
@@ -283,9 +272,9 @@
                                       }
                                     }
                                   },
-                                  "ty": 25
+                                  "ty": 24
                                 },
-                                "span": 53,
+                                "span": 50,
                                 "user_ty": null
                               }
                             }
@@ -295,7 +284,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 54
+                    "span": 51
                   }
                 },
                 {
@@ -315,7 +304,7 @@
                                   {
                                     "Field": [
                                       0,
-                                      25
+                                      24
                                     ]
                                   }
                                 ]
@@ -324,7 +313,7 @@
                           }
                         ]
                       },
-                      "span": 54
+                      "span": 51
                     }
                   ],
                   "terminator": {
@@ -347,9 +336,9 @@
                             "const_": {
                               "id": 11,
                               "kind": "ZeroSized",
-                              "ty": 27
+                              "ty": 26
                             },
-                            "span": 55,
+                            "span": 52,
                             "user_ty": null
                           }
                         },
@@ -357,7 +346,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 56
+                    "span": 53
                   }
                 },
                 {
@@ -388,7 +377,7 @@
                           }
                         ]
                       },
-                      "span": 57
+                      "span": 54
                     }
                   ],
                   "terminator": {
@@ -401,7 +390,7 @@
                               {
                                 "Field": [
                                   1,
-                                  26
+                                  25
                                 ]
                               }
                             ]
@@ -429,7 +418,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 57
+                    "span": 54
                   }
                 },
                 {
@@ -449,7 +438,7 @@
                                   {
                                     "Field": [
                                       0,
-                                      25
+                                      24
                                     ]
                                   }
                                 ]
@@ -458,7 +447,7 @@
                           }
                         ]
                       },
-                      "span": 57
+                      "span": 54
                     }
                   ],
                   "terminator": {
@@ -467,50 +456,50 @@
                         "target": 6
                       }
                     },
-                    "span": 51
+                    "span": 48
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 58
+                    "span": 55
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 59,
-                  "ty": 25
+                  "span": 56,
+                  "ty": 24
                 },
                 {
                   "mutability": "Not",
-                  "span": 60,
-                  "ty": 25
+                  "span": 57,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 56,
-                  "ty": 25
+                  "span": 53,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 54,
-                  "ty": 25
+                  "span": 51,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 54,
-                  "ty": 28
+                  "span": 51,
+                  "ty": 27
                 },
                 {
                   "mutability": "Mut",
-                  "span": 57,
-                  "ty": 28
+                  "span": 54,
+                  "ty": 27
                 }
               ],
-              "span": 61,
+              "span": 58,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -519,7 +508,7 @@
                   "name": "n",
                   "source_info": {
                     "scope": 0,
-                    "span": 60
+                    "span": 57
                   },
                   "value": {
                     "Place": {
@@ -570,9 +559,9 @@
                                     }
                                   }
                                 },
-                                "ty": 25
+                                "ty": 24
                               },
-                              "span": 63,
+                              "span": 60,
                               "user_ty": null
                             }
                           }
@@ -586,9 +575,9 @@
                             "const_": {
                               "id": 11,
                               "kind": "ZeroSized",
-                              "ty": 27
+                              "ty": 26
                             },
-                            "span": 62,
+                            "span": 59,
                             "user_ty": null
                           }
                         },
@@ -596,7 +585,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 64
+                    "span": 61
                   }
                 },
                 {
@@ -621,14 +610,14 @@
                         }
                       }
                     },
-                    "span": 65
+                    "span": 62
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 66
+                    "span": 63
                   }
                 },
                 {
@@ -673,9 +662,9 @@
                                     }
                                   }
                                 },
-                                "ty": 30
+                                "ty": 29
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -689,9 +678,9 @@
                             "const_": {
                               "id": 13,
                               "kind": "ZeroSized",
-                              "ty": 29
+                              "ty": 28
                             },
-                            "span": 67,
+                            "span": 64,
                             "user_ty": null
                           }
                         },
@@ -699,28 +688,28 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 67
+                    "span": 64
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 68,
+                  "span": 65,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 69,
-                  "ty": 25
+                  "span": 66,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 67,
-                  "ty": 31
+                  "span": 64,
+                  "ty": 30
                 }
               ],
-              "span": 70,
+              "span": 67,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -729,7 +718,7 @@
                   "name": "ans",
                   "source_info": {
                     "scope": 1,
-                    "span": 69
+                    "span": 66
                   },
                   "value": {
                     "Place": {
@@ -769,12 +758,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -859,7 +842,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -870,12 +853,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -935,7 +912,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -964,51 +941,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -1022,7 +999,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -1032,7 +1009,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1041,7 +1018,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -1056,7 +1033,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -1071,7 +1048,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -1086,7 +1063,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -1101,7 +1078,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -1133,19 +1110,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -1172,7 +1149,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -1197,7 +1174,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -1205,7 +1182,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -1214,7 +1191,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -1239,7 +1216,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -1247,7 +1224,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -1256,13 +1233,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1271,42 +1248,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -1330,7 +1271,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1344,7 +1285,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -1353,37 +1294,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -1393,27 +1328,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -1426,7 +1356,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -1449,7 +1379,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -1457,21 +1387,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 30
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 5,
-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -1509,7 +1424,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1523,9 +1438,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -1533,7 +1448,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -1549,7 +1464,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1563,9 +1478,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -1573,35 +1488,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 36
+                    "span": 33
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 37,
+                  "span": 34,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 38,
+                  "span": 35,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 39,
+                  "span": 36,
                   "ty": 1
                 }
               ],
-              "span": 42,
+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1610,7 +1525,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -1625,7 +1540,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -1640,7 +1555,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -1649,7 +1564,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1701,9 +1616,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1711,35 +1626,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 22
+                  "span": 40,
+                  "ty": 21
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1785,7 +1700,7 @@
                           }
                         ]
                       },
-                      "span": 43
+                      "span": 40
                     }
                   ],
                   "terminator": {
@@ -1814,9 +1729,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1826,7 +1741,7 @@
                         }
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1842,14 +1757,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1865,40 +1780,40 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 24
+                  "span": 40,
+                  "ty": 23
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1937,35 +1852,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1988,23 +1903,23 @@
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 44
+                    "span": 41
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 44,
+                  "span": 41,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 44,
-                  "ty": 22
+                  "span": 41,
+                  "ty": 21
                 }
               ],
-              "span": 44,
+              "span": 41,
               "spread_arg": null,
               "var_debug_info": []
             }
@@ -2051,58 +1966,37 @@
                                   },
                                   "ty": 17
                                 },
-                                "span": 46,
+                                "span": 43,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 46
+                      "span": 43
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 45
+                    "span": 42
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 47,
+                  "span": 44,
                   "ty": 17
                 },
                 {
                   "mutability": "Not",
-                  "span": 48,
+                  "span": 45,
                   "ty": 1
                 }
               ],
-              "span": 49,
+              "span": 46,
               "spread_arg": null,
-              "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 48
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 4,
-                        "kind": "ZeroSized",
-                        "ty": 1
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
           "id": 5,
diff --git a/tests/integration/programs/ref-deref.smir.json.expected b/tests/integration/programs/ref-deref.smir.json.expected
index 44c9640..65d04b7 100644
--- a/tests/integration/programs/ref-deref.smir.json.expected
+++ b/tests/integration/programs/ref-deref.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
     [
-      0,
       {
         "Memory": {
           "align": 1,
@@ -42,55 +41,46 @@
   ],
   "functions": [
     [
-      0,
       {
         "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
-      13,
       {
         "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
-      14,
       {
         "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
-      19,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      20,
       {
         "IntrinsicSym": "black_box"
       }
     ],
     [
-      21,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      23,
       {
         "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
-      25,
       {
         "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
-      29,
       {
         "NoOpSym": ""
       }
@@ -119,12 +109,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -209,7 +193,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -220,12 +204,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -285,7 +263,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -314,51 +292,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -372,7 +350,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -382,7 +360,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -391,7 +369,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -406,7 +384,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -421,7 +399,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -436,7 +414,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -451,7 +429,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -483,19 +461,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -522,7 +500,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -547,7 +525,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -555,7 +533,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -564,7 +542,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -589,7 +567,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -597,7 +575,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -606,13 +584,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -621,42 +599,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -680,7 +622,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -694,7 +636,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -703,37 +645,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -743,27 +679,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -776,7 +707,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -799,7 +730,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -807,21 +738,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 30
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 5,
-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -859,7 +775,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -873,9 +789,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -883,7 +799,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -899,7 +815,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -913,9 +829,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -923,35 +839,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 36
+                    "span": 33
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 37,
+                  "span": 34,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 38,
+                  "span": 35,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 39,
+                  "span": 36,
                   "ty": 1
                 }
               ],
-              "span": 42,
+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -960,7 +876,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -975,7 +891,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -990,7 +906,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -999,7 +915,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1051,9 +967,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1061,35 +977,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 22
+                  "span": 40,
+                  "ty": 21
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1128,35 +1044,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1202,7 +1118,7 @@
                           }
                         ]
                       },
-                      "span": 43
+                      "span": 40
                     }
                   ],
                   "terminator": {
@@ -1231,9 +1147,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1243,7 +1159,7 @@
                         }
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1259,14 +1175,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1282,40 +1198,40 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 24
+                  "span": 40,
+                  "ty": 23
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1338,23 +1254,23 @@
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 44
+                    "span": 41
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 44,
+                  "span": 41,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 44,
-                  "ty": 22
+                  "span": 41,
+                  "ty": 21
                 }
               ],
-              "span": 44,
+              "span": 41,
               "spread_arg": null,
               "var_debug_info": []
             }
@@ -1401,58 +1317,37 @@
                                   },
                                   "ty": 17
                                 },
-                                "span": 46,
+                                "span": 43,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 46
+                      "span": 43
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 45
+                    "span": 42
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 47,
+                  "span": 44,
                   "ty": 17
                 },
                 {
                   "mutability": "Not",
-                  "span": 48,
+                  "span": 45,
                   "ty": 1
                 }
               ],
-              "span": 49,
+              "span": 46,
               "spread_arg": null,
-              "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 48
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 4,
-                        "kind": "ZeroSized",
-                        "ty": 1
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
           "id": 5,
@@ -1500,14 +1395,14 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 51,
+                                "span": 48,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 51
+                      "span": 48
                     },
                     {
                       "kind": {
@@ -1530,7 +1425,7 @@
                           }
                         ]
                       },
-                      "span": 52
+                      "span": 49
                     },
                     {
                       "kind": {
@@ -1551,7 +1446,7 @@
                           }
                         ]
                       },
-                      "span": 53
+                      "span": 50
                     }
                   ],
                   "terminator": {
@@ -1574,14 +1469,14 @@
                         }
                       }
                     },
-                    "span": 50
+                    "span": 47
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 54
+                    "span": 51
                   }
                 },
                 {
@@ -1626,9 +1521,9 @@
                                     }
                                   }
                                 },
-                                "ty": 26
+                                "ty": 25
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1642,9 +1537,9 @@
                             "const_": {
                               "id": 10,
                               "kind": "ZeroSized",
-                              "ty": 25
+                              "ty": 24
                             },
-                            "span": 55,
+                            "span": 52,
                             "user_ty": null
                           }
                         },
@@ -1652,38 +1547,38 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 55
+                    "span": 52
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 56,
+                  "span": 53,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 57,
+                  "span": 54,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 58,
-                  "ty": 27
+                  "span": 55,
+                  "ty": 26
                 },
                 {
                   "mutability": "Not",
-                  "span": 59,
+                  "span": 56,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 55,
-                  "ty": 28
+                  "span": 52,
+                  "ty": 27
                 }
               ],
-              "span": 60,
+              "span": 57,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1692,7 +1587,7 @@
                   "name": "a",
                   "source_info": {
                     "scope": 1,
-                    "span": 57
+                    "span": 54
                   },
                   "value": {
                     "Place": {
@@ -1707,7 +1602,7 @@
                   "name": "b",
                   "source_info": {
                     "scope": 2,
-                    "span": 58
+                    "span": 55
                   },
                   "value": {
                     "Place": {
@@ -1722,7 +1617,7 @@
                   "name": "c",
                   "source_info": {
                     "scope": 3,
-                    "span": 59
+                    "span": 56
                   },
                   "value": {
                     "Place": {
diff --git a/tests/integration/programs/shl_min.smir.json.expected b/tests/integration/programs/shl_min.smir.json.expected
index 484608d..e8d84cc 100644
--- a/tests/integration/programs/shl_min.smir.json.expected
+++ b/tests/integration/programs/shl_min.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
     [
-      0,
       {
         "Memory": {
           "align": 1,
@@ -50,7 +49,6 @@
       }
     ],
     [
-      1,
       {
         "Memory": {
           "align": 1,
@@ -102,7 +100,6 @@
       }
     ],
     [
-      2,
       {
         "Memory": {
           "align": 1,
@@ -159,7 +156,6 @@
       }
     ],
     [
-      3,
       {
         "Memory": {
           "align": 1,
@@ -225,7 +221,6 @@
       }
     ],
     [
-      4,
       {
         "Memory": {
           "align": 1,
@@ -314,55 +309,46 @@
   ],
   "functions": [
     [
-      0,
       {
         "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
-      13,
       {
         "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
-      14,
       {
         "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
-      19,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      20,
       {
         "IntrinsicSym": "black_box"
       }
     ],
     [
-      21,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      23,
       {
         "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
-      27,
       {
         "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
-      33,
       {
         "NoOpSym": ""
       }
@@ -391,12 +377,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -481,7 +461,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -492,12 +472,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -557,7 +531,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -586,51 +560,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -644,7 +618,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -654,7 +628,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -663,7 +637,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -678,7 +652,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -693,7 +667,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -708,7 +682,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -723,7 +697,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -755,19 +729,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -794,7 +768,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -819,7 +793,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -827,7 +801,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -836,7 +810,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -861,7 +835,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -869,7 +843,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -878,13 +852,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -893,42 +867,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -952,7 +890,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -966,7 +904,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -975,37 +913,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -1015,27 +947,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -1048,7 +975,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -1071,7 +998,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -1079,21 +1006,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 30
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 5,
-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -1131,7 +1043,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1145,9 +1057,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -1155,7 +1067,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -1171,7 +1083,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1185,9 +1097,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -1195,35 +1107,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 36
+                    "span": 33
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 37,
+                  "span": 34,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 38,
+                  "span": 35,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 39,
+                  "span": 36,
                   "ty": 1
                 }
               ],
-              "span": 42,
+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1232,7 +1144,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -1247,7 +1159,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -1262,7 +1174,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -1271,7 +1183,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1323,9 +1235,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1333,35 +1245,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 22
+                  "span": 40,
+                  "ty": 21
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1400,35 +1312,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1474,7 +1386,7 @@
                           }
                         ]
                       },
-                      "span": 43
+                      "span": 40
                     }
                   ],
                   "terminator": {
@@ -1503,9 +1415,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1515,7 +1427,7 @@
                         }
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1531,14 +1443,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1554,40 +1466,40 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 24
+                  "span": 40,
+                  "ty": 23
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1610,23 +1522,23 @@
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 44
+                    "span": 41
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 44,
+                  "span": 41,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 44,
-                  "ty": 22
+                  "span": 41,
+                  "ty": 21
                 }
               ],
-              "span": 44,
+              "span": 41,
               "spread_arg": null,
               "var_debug_info": []
             }
@@ -1673,58 +1585,37 @@
                                   },
                                   "ty": 17
                                 },
-                                "span": 46,
+                                "span": 43,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 46
+                      "span": 43
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 45
+                    "span": 42
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 47,
+                  "span": 44,
                   "ty": 17
                 },
                 {
                   "mutability": "Not",
-                  "span": 48,
+                  "span": 45,
                   "ty": 1
                 }
               ],
-              "span": 49,
+              "span": 46,
               "spread_arg": null,
-              "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 48
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 4,
-                        "kind": "ZeroSized",
-                        "ty": 1
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
           "id": 5,
@@ -1774,16 +1665,16 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 51,
+                                  "span": 48,
                                   "user_ty": null
                                 }
                               },
-                              25
+                              24
                             ]
                           }
                         ]
                       },
-                      "span": 52
+                      "span": 49
                     },
                     {
                       "kind": {
@@ -1820,9 +1711,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 25
+                                    "ty": 24
                                   },
-                                  "span": 52,
+                                  "span": 49,
                                   "user_ty": null
                                 }
                               }
@@ -1830,7 +1721,7 @@
                           }
                         ]
                       },
-                      "span": 52
+                      "span": 49
                     }
                   ],
                   "terminator": {
@@ -1864,7 +1755,7 @@
                                   },
                                   "ty": 2
                                 },
-                                "span": 50,
+                                "span": 47,
                                 "user_ty": null
                               }
                             },
@@ -1889,7 +1780,7 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 51,
+                                "span": 48,
                                 "user_ty": null
                               }
                             }
@@ -1899,7 +1790,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 52
+                    "span": 49
                   }
                 },
                 {
@@ -1932,7 +1823,7 @@
                                     },
                                     "ty": 2
                                   },
-                                  "span": 50,
+                                  "span": 47,
                                   "user_ty": null
                                 }
                               },
@@ -1957,7 +1848,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 51,
+                                  "span": 48,
                                   "user_ty": null
                                 }
                               }
@@ -1965,7 +1856,7 @@
                           }
                         ]
                       },
-                      "span": 52
+                      "span": 49
                     }
                   ],
                   "terminator": {
@@ -1988,7 +1879,7 @@
                         }
                       }
                     },
-                    "span": 53
+                    "span": 50
                   }
                 },
                 {
@@ -2024,16 +1915,16 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 55,
+                                  "span": 52,
                                   "user_ty": null
                                 }
                               },
-                              25
+                              24
                             ]
                           }
                         ]
                       },
-                      "span": 56
+                      "span": 53
                     },
                     {
                       "kind": {
@@ -2070,9 +1961,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 25
+                                    "ty": 24
                                   },
-                                  "span": 56,
+                                  "span": 53,
                                   "user_ty": null
                                 }
                               }
@@ -2080,7 +1971,7 @@
                           }
                         ]
                       },
-                      "span": 56
+                      "span": 53
                     }
                   ],
                   "terminator": {
@@ -2113,9 +2004,9 @@
                                       }
                                     }
                                   },
-                                  "ty": 26
+                                  "ty": 25
                                 },
-                                "span": 54,
+                                "span": 51,
                                 "user_ty": null
                               }
                             },
@@ -2140,7 +2031,7 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 55,
+                                "span": 52,
                                 "user_ty": null
                               }
                             }
@@ -2150,7 +2041,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 56
+                    "span": 53
                   }
                 },
                 {
@@ -2195,9 +2086,9 @@
                                     }
                                   }
                                 },
-                                "ty": 28
+                                "ty": 27
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -2211,9 +2102,9 @@
                             "const_": {
                               "id": 14,
                               "kind": "ZeroSized",
-                              "ty": 27
+                              "ty": 26
                             },
-                            "span": 57,
+                            "span": 54,
                             "user_ty": null
                           }
                         },
@@ -2221,7 +2112,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 57
+                    "span": 54
                   }
                 },
                 {
@@ -2253,9 +2144,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 26
+                                    "ty": 25
                                   },
-                                  "span": 54,
+                                  "span": 51,
                                   "user_ty": null
                                 }
                               },
@@ -2280,7 +2171,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 55,
+                                  "span": 52,
                                   "user_ty": null
                                 }
                               }
@@ -2288,7 +2179,7 @@
                           }
                         ]
                       },
-                      "span": 56
+                      "span": 53
                     }
                   ],
                   "terminator": {
@@ -2311,7 +2202,7 @@
                         }
                       }
                     },
-                    "span": 58
+                    "span": 55
                   }
                 },
                 {
@@ -2347,16 +2238,16 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 60,
+                                  "span": 57,
                                   "user_ty": null
                                 }
                               },
-                              25
+                              24
                             ]
                           }
                         ]
                       },
-                      "span": 61
+                      "span": 58
                     },
                     {
                       "kind": {
@@ -2393,9 +2284,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 25
+                                    "ty": 24
                                   },
-                                  "span": 61,
+                                  "span": 58,
                                   "user_ty": null
                                 }
                               }
@@ -2403,7 +2294,7 @@
                           }
                         ]
                       },
-                      "span": 61
+                      "span": 58
                     }
                   ],
                   "terminator": {
@@ -2440,7 +2331,7 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 59,
+                                "span": 56,
                                 "user_ty": null
                               }
                             },
@@ -2465,7 +2356,7 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 60,
+                                "span": 57,
                                 "user_ty": null
                               }
                             }
@@ -2475,7 +2366,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 61
+                    "span": 58
                   }
                 },
                 {
@@ -2520,9 +2411,9 @@
                                     }
                                   }
                                 },
-                                "ty": 28
+                                "ty": 27
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -2536,9 +2427,9 @@
                             "const_": {
                               "id": 14,
                               "kind": "ZeroSized",
-                              "ty": 27
+                              "ty": 26
                             },
-                            "span": 62,
+                            "span": 59,
                             "user_ty": null
                           }
                         },
@@ -2546,7 +2437,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 62
+                    "span": 59
                   }
                 },
                 {
@@ -2582,7 +2473,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 59,
+                                  "span": 56,
                                   "user_ty": null
                                 }
                               },
@@ -2607,7 +2498,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 60,
+                                  "span": 57,
                                   "user_ty": null
                                 }
                               }
@@ -2615,7 +2506,7 @@
                           }
                         ]
                       },
-                      "span": 61
+                      "span": 58
                     }
                   ],
                   "terminator": {
@@ -2638,7 +2529,7 @@
                         }
                       }
                     },
-                    "span": 63
+                    "span": 60
                   }
                 },
                 {
@@ -2674,16 +2565,16 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 65,
+                                  "span": 62,
                                   "user_ty": null
                                 }
                               },
-                              25
+                              24
                             ]
                           }
                         ]
                       },
-                      "span": 66
+                      "span": 63
                     },
                     {
                       "kind": {
@@ -2720,9 +2611,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 25
+                                    "ty": 24
                                   },
-                                  "span": 66,
+                                  "span": 63,
                                   "user_ty": null
                                 }
                               }
@@ -2730,7 +2621,7 @@
                           }
                         ]
                       },
-                      "span": 66
+                      "span": 63
                     }
                   ],
                   "terminator": {
@@ -2769,9 +2660,9 @@
                                       }
                                     }
                                   },
-                                  "ty": 29
+                                  "ty": 28
                                 },
-                                "span": 64,
+                                "span": 61,
                                 "user_ty": null
                               }
                             },
@@ -2796,7 +2687,7 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 65,
+                                "span": 62,
                                 "user_ty": null
                               }
                             }
@@ -2806,7 +2697,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 66
+                    "span": 63
                   }
                 },
                 {
@@ -2851,9 +2742,9 @@
                                     }
                                   }
                                 },
-                                "ty": 28
+                                "ty": 27
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -2867,9 +2758,9 @@
                             "const_": {
                               "id": 14,
                               "kind": "ZeroSized",
-                              "ty": 27
+                              "ty": 26
                             },
-                            "span": 67,
+                            "span": 64,
                             "user_ty": null
                           }
                         },
@@ -2877,7 +2768,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 67
+                    "span": 64
                   }
                 },
                 {
@@ -2915,9 +2806,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 29
+                                    "ty": 28
                                   },
-                                  "span": 64,
+                                  "span": 61,
                                   "user_ty": null
                                 }
                               },
@@ -2942,7 +2833,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 65,
+                                  "span": 62,
                                   "user_ty": null
                                 }
                               }
@@ -2950,7 +2841,7 @@
                           }
                         ]
                       },
-                      "span": 66
+                      "span": 63
                     }
                   ],
                   "terminator": {
@@ -2973,7 +2864,7 @@
                         }
                       }
                     },
-                    "span": 68
+                    "span": 65
                   }
                 },
                 {
@@ -3009,16 +2900,16 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 70,
+                                  "span": 67,
                                   "user_ty": null
                                 }
                               },
-                              25
+                              24
                             ]
                           }
                         ]
                       },
-                      "span": 71
+                      "span": 68
                     },
                     {
                       "kind": {
@@ -3055,9 +2946,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 25
+                                    "ty": 24
                                   },
-                                  "span": 71,
+                                  "span": 68,
                                   "user_ty": null
                                 }
                               }
@@ -3065,7 +2956,7 @@
                           }
                         ]
                       },
-                      "span": 71
+                      "span": 68
                     }
                   ],
                   "terminator": {
@@ -3112,9 +3003,9 @@
                                       }
                                     }
                                   },
-                                  "ty": 30
+                                  "ty": 29
                                 },
-                                "span": 69,
+                                "span": 66,
                                 "user_ty": null
                               }
                             },
@@ -3139,7 +3030,7 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 70,
+                                "span": 67,
                                 "user_ty": null
                               }
                             }
@@ -3149,7 +3040,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 71
+                    "span": 68
                   }
                 },
                 {
@@ -3194,9 +3085,9 @@
                                     }
                                   }
                                 },
-                                "ty": 28
+                                "ty": 27
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -3210,9 +3101,9 @@
                             "const_": {
                               "id": 14,
                               "kind": "ZeroSized",
-                              "ty": 27
+                              "ty": 26
                             },
-                            "span": 72,
+                            "span": 69,
                             "user_ty": null
                           }
                         },
@@ -3220,7 +3111,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 72
+                    "span": 69
                   }
                 },
                 {
@@ -3266,9 +3157,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 30
+                                    "ty": 29
                                   },
-                                  "span": 69,
+                                  "span": 66,
                                   "user_ty": null
                                 }
                               },
@@ -3293,7 +3184,7 @@
                                     },
                                     "ty": 16
                                   },
-                                  "span": 70,
+                                  "span": 67,
                                   "user_ty": null
                                 }
                               }
@@ -3301,7 +3192,7 @@
                           }
                         ]
                       },
-                      "span": 71
+                      "span": 68
                     }
                   ],
                   "terminator": {
@@ -3324,14 +3215,14 @@
                         }
                       }
                     },
-                    "span": 73
+                    "span": 70
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 74
+                    "span": 71
                   }
                 },
                 {
@@ -3376,9 +3267,9 @@
                                     }
                                   }
                                 },
-                                "ty": 28
+                                "ty": 27
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -3392,9 +3283,9 @@
                             "const_": {
                               "id": 14,
                               "kind": "ZeroSized",
-                              "ty": 27
+                              "ty": 26
                             },
-                            "span": 75,
+                            "span": 72,
                             "user_ty": null
                           }
                         },
@@ -3402,118 +3293,118 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 75
+                    "span": 72
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 76,
+                  "span": 73,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 52,
+                  "span": 49,
                   "ty": 2
                 },
                 {
                   "mutability": "Mut",
-                  "span": 52,
-                  "ty": 25
+                  "span": 49,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 52,
+                  "span": 49,
+                  "ty": 30
+                },
+                {
+                  "mutability": "Mut",
+                  "span": 54,
                   "ty": 31
                 },
                 {
                   "mutability": "Mut",
-                  "span": 57,
-                  "ty": 32
+                  "span": 53,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 56,
-                  "ty": 26
+                  "span": 53,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 56,
-                  "ty": 25
+                  "span": 53,
+                  "ty": 30
                 },
                 {
                   "mutability": "Mut",
-                  "span": 56,
+                  "span": 59,
                   "ty": 31
                 },
                 {
                   "mutability": "Mut",
-                  "span": 62,
-                  "ty": 32
+                  "span": 58,
+                  "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 61,
-                  "ty": 16
+                  "span": 58,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 61,
-                  "ty": 25
+                  "span": 58,
+                  "ty": 30
                 },
                 {
                   "mutability": "Mut",
-                  "span": 61,
+                  "span": 64,
                   "ty": 31
                 },
                 {
                   "mutability": "Mut",
-                  "span": 67,
-                  "ty": 32
+                  "span": 63,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
-                  "span": 66,
-                  "ty": 29
+                  "span": 63,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 66,
-                  "ty": 25
+                  "span": 63,
+                  "ty": 30
                 },
                 {
                   "mutability": "Mut",
-                  "span": 66,
+                  "span": 69,
                   "ty": 31
                 },
                 {
                   "mutability": "Mut",
-                  "span": 72,
-                  "ty": 32
+                  "span": 68,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 71,
-                  "ty": 30
+                  "span": 68,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 71,
-                  "ty": 25
+                  "span": 68,
+                  "ty": 30
                 },
                 {
                   "mutability": "Mut",
-                  "span": 71,
+                  "span": 72,
                   "ty": 31
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 75,
-                  "ty": 32
                 }
               ],
-              "span": 77,
+              "span": 74,
               "spread_arg": null,
               "var_debug_info": []
             }
diff --git a/tests/integration/programs/slice.smir.json.expected b/tests/integration/programs/slice.smir.json.expected
index eacc2bf..8dddfc5 100644
--- a/tests/integration/programs/slice.smir.json.expected
+++ b/tests/integration/programs/slice.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
     [
-      0,
       {
         "Memory": {
           "align": 4,
@@ -23,7 +22,6 @@
       }
     ],
     [
-      1,
       {
         "Memory": {
           "align": 1,
@@ -68,109 +66,91 @@
   ],
   "functions": [
     [
-      1,
       {
         "NormalSym": "_ZN4core5slice5index24slice_end_index_len_fail17h"
       }
     ],
     [
-      4,
       {
         "NormalSym": "_ZN4core5slice5index22slice_index_order_fail17h"
       }
     ],
     [
-      11,
       {
         "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
-      24,
       {
         "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
-      25,
       {
         "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
-      30,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      31,
       {
         "IntrinsicSym": "black_box"
       }
     ],
     [
-      32,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      34,
       {
         "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
-      36,
       {
         "NormalSym": "_ZN4core5slice5index74_$LT$impl$u20$core..ops..index..Index$LT$I$GT$$u20$for$u20$$u5b$T$u5d$$GT$5index17h"
       }
     ],
     [
-      38,
       {
         "NormalSym": "_ZN69_$LT$T$u20$as$u20$core..array..equality..SpecArrayEq$LT$U$C$_$GT$$GT$7spec_eq17h"
       }
     ],
     [
-      43,
       {
         "NormalSym": "_ZN4core5array8equality92_$LT$impl$u20$core..cmp..PartialEq$LT$$u5b$U$u3b$$u20$N$u5d$$GT$$u20$for$u20$$u5b$T$u5d$$GT$2eq17h"
       }
     ],
     [
-      45,
       {
         "NormalSym": "_ZN106_$LT$core..ops..range..Range$LT$usize$GT$$u20$as$u20$core..slice..index..SliceIndex$LT$$u5b$T$u5d$$GT$$GT$5index17h"
       }
     ],
     [
-      46,
       {
         "IntrinsicSym": "raw_eq"
       }
     ],
     [
-      47,
       {
         "NormalSym": "_ZN4core5array85_$LT$impl$u20$core..ops..index..Index$LT$I$GT$$u20$for$u20$$u5b$T$u3b$$u20$N$u5d$$GT$5index17h"
       }
     ],
     [
-      48,
       {
         "NormalSym": "_ZN4core5array8equality96_$LT$impl$u20$core..cmp..PartialEq$LT$$u5b$U$u3b$$u20$N$u5d$$GT$$u20$for$u20$$RF$$u5b$T$u5d$$GT$2eq17h"
       }
     ],
     [
-      49,
       {
         "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
-      53,
       {
         "NoOpSym": ""
       }
@@ -354,10 +334,16 @@
                     },
                     {
                       "kind": {
-                        "StorageLive": 12
+                        "StorageLive": 11
                       },
                       "span": 8
                     },
+                    {
+                      "kind": {
+                        "StorageLive": 12
+                      },
+                      "span": 9
+                    },
                     {
                       "kind": {
                         "Assign": [
@@ -378,13 +364,13 @@
                           }
                         ]
                       },
-                      "span": 8
+                      "span": 9
                     },
                     {
                       "kind": {
                         "StorageLive": 15
                       },
-                      "span": 9
+                      "span": 8
                     },
                     {
                       "kind": {
@@ -488,7 +474,7 @@
                       "kind": {
                         "StorageDead": 15
                       },
-                      "span": 9
+                      "span": 8
                     },
                     {
                       "kind": {
@@ -520,6 +506,12 @@
                         ]
                       },
                       "span": 15
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 11
+                      },
+                      "span": 16
                     }
                   ],
                   "terminator": {
@@ -533,13 +525,13 @@
                       "kind": {
                         "StorageDead": 13
                       },
-                      "span": 18
+                      "span": 19
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 19
+                      "span": 20
                     }
                   ],
                   "terminator": {
@@ -570,7 +562,7 @@
                               "kind": "ZeroSized",
                               "ty": 4
                             },
-                            "span": 16,
+                            "span": 17,
                             "user_ty": null
                           }
                         },
@@ -578,7 +570,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 18
                   }
                 },
                 {
@@ -587,7 +579,7 @@
                       "kind": {
                         "StorageLive": 14
                       },
-                      "span": 21
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -615,7 +607,7 @@
                           }
                         ]
                       },
-                      "span": 22
+                      "span": 23
                     },
                     {
                       "kind": {
@@ -651,19 +643,19 @@
                           }
                         ]
                       },
-                      "span": 23
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 14
                       },
-                      "span": 24
+                      "span": 25
                     },
                     {
                       "kind": {
                         "StorageDead": 13
                       },
-                      "span": 18
+                      "span": 19
                     },
                     {
                       "kind": {
@@ -692,19 +684,19 @@
                           }
                         ]
                       },
-                      "span": 25
+                      "span": 26
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 19
+                      "span": 20
                     },
                     {
                       "kind": {
                         "StorageLive": 8
                       },
-                      "span": 20
+                      "span": 21
                     },
                     {
                       "kind": {
@@ -726,7 +718,7 @@
                           }
                         ]
                       },
-                      "span": 26
+                      "span": 27
                     },
                     {
                       "kind": {
@@ -754,7 +746,7 @@
                           }
                         ]
                       },
-                      "span": 20
+                      "span": 21
                     }
                   ],
                   "terminator": {
@@ -777,34 +769,34 @@
                         }
                       }
                     },
-                    "span": 20
+                    "span": 21
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 27,
+                  "span": 28,
                   "ty": 5
                 },
                 {
                   "mutability": "Not",
-                  "span": 28,
+                  "span": 29,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 29,
+                  "span": 30,
                   "ty": 5
                 },
                 {
                   "mutability": "Mut",
-                  "span": 30,
+                  "span": 31,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 25,
+                  "span": 26,
                   "ty": 0
                 },
                 {
@@ -824,12 +816,12 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 20,
+                  "span": 21,
                   "ty": 9
                 },
                 {
                   "mutability": "Mut",
-                  "span": 26,
+                  "span": 27,
                   "ty": 0
                 },
                 {
@@ -839,12 +831,12 @@
                 },
                 {
                   "mutability": "Not",
-                  "span": 9,
+                  "span": 8,
                   "ty": 10
                 },
                 {
                   "mutability": "Mut",
-                  "span": 8,
+                  "span": 9,
                   "ty": 10
                 },
                 {
@@ -854,17 +846,17 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 21,
+                  "span": 22,
                   "ty": 0
                 },
                 {
                   "mutability": "Not",
-                  "span": 31,
+                  "span": 32,
                   "ty": 2
                 },
                 {
                   "mutability": "Not",
-                  "span": 32,
+                  "span": 33,
                   "ty": 2
                 }
               ],
@@ -877,7 +869,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 0,
-                    "span": 28
+                    "span": 29
                   },
                   "value": {
                     "Place": {
@@ -892,7 +884,7 @@
                   "name": "slice",
                   "source_info": {
                     "scope": 0,
-                    "span": 29
+                    "span": 30
                   },
                   "value": {
                     "Place": {
@@ -907,7 +899,7 @@
                   "name": "new_len",
                   "source_info": {
                     "scope": 1,
-                    "span": 25
+                    "span": 26
                   },
                   "value": {
                     "Place": {
@@ -922,7 +914,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 2,
-                    "span": 33
+                    "span": 34
                   },
                   "value": {
                     "Place": {
@@ -937,7 +929,7 @@
                   "name": "rhs",
                   "source_info": {
                     "scope": 2,
-                    "span": 34
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -952,7 +944,7 @@
                   "name": "ptr",
                   "source_info": {
                     "scope": 3,
-                    "span": 35
+                    "span": 36
                   },
                   "value": {
                     "Place": {
@@ -967,7 +959,7 @@
                   "name": "offset",
                   "source_info": {
                     "scope": 3,
-                    "span": 36
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -982,7 +974,7 @@
                   "name": "len",
                   "source_info": {
                     "scope": 3,
-                    "span": 37
+                    "span": 38
                   },
                   "value": {
                     "Place": {
@@ -991,62 +983,17 @@
                     }
                   }
                 },
-                {
-                  "argument_index": null,
-                  "composite": null,
-                  "name": "ptr",
-                  "source_info": {
-                    "scope": 4,
-                    "span": 31
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 15,
-                      "projection": []
-                    }
-                  }
-                },
                 {
                   "argument_index": 1,
                   "composite": null,
                   "name": "ptr",
-                  "source_info": {
-                    "scope": 5,
-                    "span": 38
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 2,
-                      "projection": []
-                    }
-                  }
-                },
-                {
-                  "argument_index": 2,
-                  "composite": null,
-                  "name": "index",
                   "source_info": {
                     "scope": 5,
                     "span": 39
                   },
                   "value": {
                     "Place": {
-                      "local": 7,
-                      "projection": []
-                    }
-                  }
-                },
-                {
-                  "argument_index": null,
-                  "composite": null,
-                  "name": "ptr",
-                  "source_info": {
-                    "scope": 6,
-                    "span": 32
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 16,
+                      "local": 2,
                       "projection": []
                     }
                   }
@@ -1082,12 +1029,6 @@
                       },
                       "span": 43
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 43
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -1172,7 +1113,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -1183,12 +1124,6 @@
                         ]
                       },
                       "span": 43
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 45
                     }
                   ],
                   "terminator": {
@@ -1248,7 +1183,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 47
+                      "span": 46
                     },
                     {
                       "kind": {
@@ -1277,51 +1212,51 @@
                           }
                         ]
                       },
-                      "span": 48
+                      "span": 47
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 49
+                      "span": 48
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 49
+                      "span": 48
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 46
+                    "span": 45
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 50,
+                  "span": 49,
                   "ty": 17
                 },
                 {
                   "mutability": "Not",
-                  "span": 51,
+                  "span": 50,
                   "ty": 18
                 },
                 {
                   "mutability": "Not",
-                  "span": 52,
+                  "span": 51,
                   "ty": 17
                 },
                 {
                   "mutability": "Not",
-                  "span": 53,
+                  "span": 52,
                   "ty": 19
                 },
                 {
                   "mutability": "Not",
-                  "span": 54,
+                  "span": 53,
                   "ty": 20
                 },
                 {
@@ -1335,7 +1270,7 @@
                   "ty": 16
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 43,
                   "ty": 22
                 },
@@ -1345,7 +1280,7 @@
                   "ty": 23
                 }
               ],
-              "span": 55,
+              "span": 54,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1354,7 +1289,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 51
+                    "span": 50
                   },
                   "value": {
                     "Place": {
@@ -1369,7 +1304,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 52
+                    "span": 51
                   },
                   "value": {
                     "Place": {
@@ -1384,7 +1319,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 53
+                    "span": 52
                   },
                   "value": {
                     "Place": {
@@ -1399,7 +1334,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 54
+                    "span": 53
                   },
                   "value": {
                     "Place": {
@@ -1414,7 +1349,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 48
+                    "span": 47
                   },
                   "value": {
                     "Place": {
@@ -1446,19 +1381,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 58
+                      "span": 57
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 57
+                      "span": 56
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 59
+                      "span": 58
                     },
                     {
                       "kind": {
@@ -1485,7 +1420,7 @@
                           }
                         ]
                       },
-                      "span": 59
+                      "span": 58
                     }
                   ],
                   "terminator": {
@@ -1510,7 +1445,7 @@
                               "kind": "ZeroSized",
                               "ty": 24
                             },
-                            "span": 56,
+                            "span": 55,
                             "user_ty": null
                           }
                         },
@@ -1518,7 +1453,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 57
+                    "span": 56
                   }
                 },
                 {
@@ -1527,7 +1462,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 61
+                      "span": 60
                     }
                   ],
                   "terminator": {
@@ -1552,7 +1487,7 @@
                               "kind": "ZeroSized",
                               "ty": 25
                             },
-                            "span": 60,
+                            "span": 59,
                             "user_ty": null
                           }
                         },
@@ -1560,7 +1495,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 58
+                    "span": 57
                   }
                 },
                 {
@@ -1569,13 +1504,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 63
+                      "span": 62
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 64
+                      "span": 63
                     },
                     {
                       "kind": {
@@ -1584,42 +1519,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      26
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 64
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 65
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -1643,7 +1542,7 @@
                           }
                         ]
                       },
-                      "span": 65
+                      "span": 63
                     },
                     {
                       "kind": {
@@ -1657,7 +1556,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -1666,37 +1565,31 @@
                           }
                         ]
                       },
-                      "span": 66
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 67
+                      "span": 64
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 68
+                      "span": 65
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 45
+                      "span": 66
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 62
+                    "span": 61
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 69,
+                  "span": 67,
                   "ty": 27
                 },
                 {
@@ -1706,27 +1599,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 58,
+                  "span": 57,
                   "ty": 28
                 },
                 {
                   "mutability": "Mut",
-                  "span": 57,
+                  "span": 56,
                   "ty": 12
                 },
                 {
                   "mutability": "Mut",
-                  "span": 59,
+                  "span": 58,
                   "ty": 18
                 },
                 {
                   "mutability": "Mut",
-                  "span": 64,
-                  "ty": 29
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 65,
+                  "span": 63,
                   "ty": 20
                 }
               ],
@@ -1739,7 +1627,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 51
+                    "span": 50
                   },
                   "value": {
                     "Place": {
@@ -1762,7 +1650,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 70
+                    "span": 68
                   },
                   "value": {
                     "Place": {
@@ -1770,21 +1658,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 71
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 5,
-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -1822,7 +1695,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 12
                               },
-                              "span": 73,
+                              "span": 70,
                               "user_ty": null
                             }
                           }
@@ -1836,9 +1709,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 30
+                              "ty": 29
                             },
-                            "span": 72,
+                            "span": 69,
                             "user_ty": null
                           }
                         },
@@ -1846,7 +1719,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 74
+                    "span": 71
                   }
                 },
                 {
@@ -1862,7 +1735,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 12
                               },
-                              "span": 73,
+                              "span": 70,
                               "user_ty": null
                             }
                           }
@@ -1876,9 +1749,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 31
+                              "ty": 30
                             },
-                            "span": 75,
+                            "span": 72,
                             "user_ty": null
                           }
                         },
@@ -1886,35 +1759,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 76
+                    "span": 73
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 77
+                    "span": 74
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 78,
+                  "span": 75,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 79,
+                  "span": 76,
                   "ty": 18
                 },
                 {
                   "mutability": "Not",
-                  "span": 80,
+                  "span": 77,
                   "ty": 12
                 }
               ],
-              "span": 83,
+              "span": 80,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1923,7 +1796,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 79
+                    "span": 76
                   },
                   "value": {
                     "Place": {
@@ -1938,7 +1811,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 81
+                    "span": 78
                   },
                   "value": {
                     "Place": {
@@ -1953,7 +1826,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 82
+                    "span": 79
                   },
                   "value": {
                     "Const": {
@@ -1962,7 +1835,7 @@
                         "kind": "ZeroSized",
                         "ty": 12
                       },
-                      "span": 73,
+                      "span": 70,
                       "user_ty": null
                     }
                   }
@@ -2014,9 +1887,9 @@
                             "const_": {
                               "id": 8,
                               "kind": "ZeroSized",
-                              "ty": 32
+                              "ty": 31
                             },
-                            "span": 84,
+                            "span": 81,
                             "user_ty": null
                           }
                         },
@@ -2024,35 +1897,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 84
+                    "span": 81
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 84
+                    "span": 81
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 84,
+                  "span": 81,
                   "ty": 27
                 },
                 {
                   "mutability": "Not",
-                  "span": 84,
-                  "ty": 33
+                  "span": 81,
+                  "ty": 32
                 },
                 {
                   "mutability": "Not",
-                  "span": 84,
+                  "span": 81,
                   "ty": 12
                 }
               ],
-              "span": 84,
+              "span": 81,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -2098,7 +1971,7 @@
                           }
                         ]
                       },
-                      "span": 84
+                      "span": 81
                     }
                   ],
                   "terminator": {
@@ -2127,9 +2000,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 34
+                              "ty": 33
                             },
-                            "span": 84,
+                            "span": 81,
                             "user_ty": null
                           }
                         },
@@ -2139,7 +2012,7 @@
                         }
                       }
                     },
-                    "span": 84
+                    "span": 81
                   }
                 },
                 {
@@ -2155,14 +2028,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 84
+                    "span": 81
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 84
+                    "span": 81
                   }
                 },
                 {
@@ -2178,40 +2051,40 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 84
+                    "span": 81
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 84
+                    "span": 81
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 84,
+                  "span": 81,
                   "ty": 27
                 },
                 {
                   "mutability": "Not",
-                  "span": 84,
+                  "span": 81,
                   "ty": 23
                 },
                 {
                   "mutability": "Not",
-                  "span": 84,
+                  "span": 81,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 84,
-                  "ty": 35
+                  "span": 81,
+                  "ty": 34
                 }
               ],
-              "span": 84,
+              "span": 81,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -2250,35 +2123,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 84
+                    "span": 81
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 84
+                    "span": 81
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 84,
+                  "span": 81,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 84,
+                  "span": 81,
                   "ty": 18
                 },
                 {
                   "mutability": "Not",
-                  "span": 84,
+                  "span": 81,
                   "ty": 12
                 }
               ],
-              "span": 84,
+              "span": 81,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -2301,23 +2174,23 @@
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 85
+                    "span": 82
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 85,
+                  "span": 82,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 85,
-                  "ty": 33
+                  "span": 82,
+                  "ty": 32
                 }
               ],
-              "span": 85,
+              "span": 82,
               "spread_arg": null,
               "var_debug_info": []
             }
@@ -2361,7 +2234,7 @@
                           }
                         ]
                       },
-                      "span": 88
+                      "span": 85
                     }
                   ],
                   "terminator": {
@@ -2390,9 +2263,9 @@
                             "const_": {
                               "id": 10,
                               "kind": "ZeroSized",
-                              "ty": 36
+                              "ty": 35
                             },
-                            "span": 86,
+                            "span": 83,
                             "user_ty": null
                           }
                         },
@@ -2400,40 +2273,40 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 87
+                    "span": 84
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 89
+                    "span": 86
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 90,
+                  "span": 87,
                   "ty": 5
                 },
                 {
                   "mutability": "Not",
-                  "span": 91,
-                  "ty": 37
+                  "span": 88,
+                  "ty": 36
                 },
                 {
                   "mutability": "Not",
-                  "span": 92,
+                  "span": 89,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 93,
+                  "span": 85,
                   "ty": 5
                 }
               ],
-              "span": 94,
+              "span": 90,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -2442,7 +2315,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 0,
-                    "span": 91
+                    "span": 88
                   },
                   "value": {
                     "Place": {
@@ -2457,7 +2330,7 @@
                   "name": "index",
                   "source_info": {
                     "scope": 0,
-                    "span": 92
+                    "span": 89
                   },
                   "value": {
                     "Place": {
@@ -2489,37 +2362,43 @@
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 96
+                      "span": 92
                     },
                     {
                       "kind": {
-                        "StorageLive": 7
+                        "StorageLive": 5
                       },
-                      "span": 97
+                      "span": 93
                     },
                     {
                       "kind": {
                         "StorageLive": 9
                       },
-                      "span": 97
+                      "span": 94
                     },
                     {
                       "kind": {
-                        "StorageLive": 5
+                        "StorageLive": 10
                       },
-                      "span": 95
+                      "span": 94
                     },
                     {
                       "kind": {
                         "StorageLive": 6
                       },
-                      "span": 98
+                      "span": 91
+                    },
+                    {
+                      "kind": {
+                        "StorageLive": 7
+                      },
+                      "span": 95
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 6,
+                            "local": 7,
                             "projection": []
                           },
                           {
@@ -2535,13 +2414,13 @@
                           }
                         ]
                       },
-                      "span": 98
+                      "span": 95
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 5,
+                            "local": 6,
                             "projection": []
                           },
                           {
@@ -2549,7 +2428,7 @@
                               "Eq",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 7,
                                   "projection": []
                                 }
                               },
@@ -2578,7 +2457,7 @@
                                     },
                                     "ty": 0
                                   },
-                                  "span": 99,
+                                  "span": 96,
                                   "user_ty": null
                                 }
                               }
@@ -2586,7 +2465,7 @@
                           }
                         ]
                       },
-                      "span": 95
+                      "span": 91
                     }
                   ],
                   "terminator": {
@@ -2594,7 +2473,7 @@
                       "SwitchInt": {
                         "discr": {
                           "Move": {
-                            "local": 5,
+                            "local": 6,
                             "projection": []
                           }
                         },
@@ -2609,7 +2488,7 @@
                         }
                       }
                     },
-                    "span": 95
+                    "span": 91
                   }
                 },
                 {
@@ -2618,27 +2497,33 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 101
+                      "span": 98
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 100
+                    "span": 97
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageDead": 6
+                        "StorageDead": 7
                       },
-                      "span": 99
+                      "span": 96
+                    },
+                    {
+                      "kind": {
+                        "StorageLive": 8
+                      },
+                      "span": 101
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 9,
+                            "local": 10,
                             "projection": []
                           },
                           {
@@ -2654,13 +2539,13 @@
                           }
                         ]
                       },
-                      "span": 104
+                      "span": 102
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 7,
+                            "local": 8,
                             "projection": []
                           },
                           {
@@ -2668,28 +2553,22 @@
                               "PtrToPtr",
                               {
                                 "Copy": {
-                                  "local": 9,
+                                  "local": 10,
                                   "projection": []
                                 }
                               },
-                              39
+                              38
                             ]
                           }
                         ]
                       },
-                      "span": 105
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 8
-                      },
-                      "span": 106
+                      "span": 103
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 8,
+                            "local": 9,
                             "projection": []
                           },
                           {
@@ -2699,7 +2578,7 @@
                               },
                               "Shared",
                               {
-                                "local": 7,
+                                "local": 8,
                                 "projection": [
                                   "Deref"
                                 ]
@@ -2708,27 +2587,24 @@
                           }
                         ]
                       },
-                      "span": 106
+                      "span": 104
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 3,
+                            "local": 5,
                             "projection": []
                           },
                           {
                             "Aggregate": [
                               {
                                 "Adt": [
-                                  9,
-                                  0,
+                                  1,
+                                  1,
                                   [
                                     {
-                                      "Type": 40
-                                    },
-                                    {
-                                      "Type": 41
+                                      "Type": 39
                                     }
                                   ],
                                   null,
@@ -2737,8 +2613,8 @@
                               },
                               [
                                 {
-                                  "Move": {
-                                    "local": 8,
+                                  "Copy": {
+                                    "local": 9,
                                     "projection": []
                                   }
                                 }
@@ -2747,31 +2623,117 @@
                           }
                         ]
                       },
-                      "span": 107
+                      "span": 105
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
+                      "span": 106
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 6
+                      },
+                      "span": 107
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 10
+                      },
+                      "span": 94
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 9
+                      },
+                      "span": 94
+                    },
+                    {
+                      "kind": {
+                        "StorageLive": 11
+                      },
                       "span": 108
                     },
                     {
                       "kind": {
-                        "StorageDead": 5
+                        "Assign": [
+                          {
+                            "local": 11,
+                            "projection": []
+                          },
+                          {
+                            "Use": {
+                              "Move": {
+                                "local": 5,
+                                "projection": [
+                                  {
+                                    "Downcast": 1
+                                  },
+                                  {
+                                    "Field": [
+                                      0,
+                                      39
+                                    ]
+                                  }
+                                ]
+                              }
+                            }
+                          }
+                        ]
                       },
                       "span": 109
                     },
                     {
                       "kind": {
-                        "StorageDead": 9
+                        "Assign": [
+                          {
+                            "local": 3,
+                            "projection": []
+                          },
+                          {
+                            "Aggregate": [
+                              {
+                                "Adt": [
+                                  9,
+                                  0,
+                                  [
+                                    {
+                                      "Type": 39
+                                    },
+                                    {
+                                      "Type": 40
+                                    }
+                                  ],
+                                  null,
+                                  null
+                                ]
+                              },
+                              [
+                                {
+                                  "Copy": {
+                                    "local": 11,
+                                    "projection": []
+                                  }
+                                }
+                              ]
+                            ]
+                          }
+                        ]
                       },
-                      "span": 97
+                      "span": 110
                     },
                     {
                       "kind": {
-                        "StorageDead": 7
+                        "StorageDead": 11
                       },
-                      "span": 97
+                      "span": 108
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 5
+                      },
+                      "span": 111
                     },
                     {
                       "kind": {
@@ -2791,7 +2753,7 @@
                                   {
                                     "Field": [
                                       0,
-                                      40
+                                      39
                                     ]
                                   }
                                 ]
@@ -2800,7 +2762,7 @@
                           }
                         ]
                       },
-                      "span": 110
+                      "span": 112
                     }
                   ],
                   "terminator": {
@@ -2829,9 +2791,9 @@
                             "const_": {
                               "id": 12,
                               "kind": "ZeroSized",
-                              "ty": 38
+                              "ty": 37
                             },
-                            "span": 102,
+                            "span": 99,
                             "user_ty": null
                           }
                         },
@@ -2839,22 +2801,22 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 103
+                    "span": 100
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageDead": 6
+                        "StorageDead": 7
                       },
-                      "span": 99
+                      "span": 96
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 3,
+                            "local": 5,
                             "projection": []
                           },
                           {
@@ -2881,40 +2843,46 @@
                                       }
                                     }
                                   },
-                                  "ty": 42
+                                  "ty": 41
                                 },
-                                "span": 73,
+                                "span": 70,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 112
+                      "span": 114
                     },
                     {
                       "kind": {
-                        "StorageDead": 5
+                        "StorageDead": 6
                       },
-                      "span": 109
+                      "span": 107
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 10
+                      },
+                      "span": 94
                     },
                     {
                       "kind": {
                         "StorageDead": 9
                       },
-                      "span": 97
+                      "span": 94
                     },
                     {
                       "kind": {
-                        "StorageDead": 7
+                        "StorageLive": 11
                       },
-                      "span": 97
+                      "span": 108
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 0,
+                            "local": 3,
                             "projection": []
                           },
                           {
@@ -2922,6 +2890,60 @@
                               "Constant": {
                                 "const_": {
                                   "id": 14,
+                                  "kind": {
+                                    "Allocated": {
+                                      "align": 8,
+                                      "bytes": [
+                                        0,
+                                        0,
+                                        0,
+                                        0,
+                                        0,
+                                        0,
+                                        0,
+                                        0
+                                      ],
+                                      "mutability": "Mut",
+                                      "provenance": {
+                                        "ptrs": []
+                                      }
+                                    }
+                                  },
+                                  "ty": 42
+                                },
+                                "span": 70,
+                                "user_ty": null
+                              }
+                            }
+                          }
+                        ]
+                      },
+                      "span": 115
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 11
+                      },
+                      "span": 108
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 5
+                      },
+                      "span": 111
+                    },
+                    {
+                      "kind": {
+                        "Assign": [
+                          {
+                            "local": 0,
+                            "projection": []
+                          },
+                          {
+                            "Use": {
+                              "Constant": {
+                                "const_": {
+                                  "id": 15,
                                   "kind": {
                                     "Allocated": {
                                       "align": 1,
@@ -2936,14 +2958,14 @@
                                   },
                                   "ty": 9
                                 },
-                                "span": 111,
+                                "span": 113,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 111
+                      "span": 113
                     }
                   ],
                   "terminator": {
@@ -2952,63 +2974,73 @@
                         "target": 1
                       }
                     },
-                    "span": 111
+                    "span": 113
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 113,
+                  "span": 116,
                   "ty": 9
                 },
                 {
                   "mutability": "Not",
-                  "span": 114,
+                  "span": 117,
                   "ty": 5
                 },
                 {
                   "mutability": "Not",
-                  "span": 115,
-                  "ty": 40
+                  "span": 118,
+                  "ty": 39
                 },
                 {
                   "mutability": "Not",
-                  "span": 96,
+                  "span": 92,
                   "ty": 42
                 },
                 {
                   "mutability": "Not",
-                  "span": 110,
-                  "ty": 40
+                  "span": 112,
+                  "ty": 39
                 },
                 {
                   "mutability": "Mut",
-                  "span": 95,
+                  "span": 93,
+                  "ty": 41
+                },
+                {
+                  "mutability": "Mut",
+                  "span": 91,
                   "ty": 9
                 },
                 {
                   "mutability": "Mut",
-                  "span": 98,
+                  "span": 95,
                   "ty": 0
                 },
                 {
                   "mutability": "Not",
-                  "span": 116,
-                  "ty": 39
+                  "span": 101,
+                  "ty": 38
                 },
                 {
-                  "mutability": "Mut",
-                  "span": 106,
-                  "ty": 40
+                  "mutability": "Not",
+                  "span": 119,
+                  "ty": 39
                 },
                 {
                   "mutability": "Mut",
-                  "span": 117,
+                  "span": 120,
                   "ty": 10
+                },
+                {
+                  "mutability": "Not",
+                  "span": 109,
+                  "ty": 39
                 }
               ],
-              "span": 123,
+              "span": 129,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -3017,7 +3049,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 0,
-                    "span": 114
+                    "span": 117
                   },
                   "value": {
                     "Place": {
@@ -3032,7 +3064,7 @@
                   "name": "other",
                   "source_info": {
                     "scope": 0,
-                    "span": 115
+                    "span": 118
                   },
                   "value": {
                     "Place": {
@@ -3047,7 +3079,7 @@
                   "name": "b",
                   "source_info": {
                     "scope": 1,
-                    "span": 96
+                    "span": 92
                   },
                   "value": {
                     "Place": {
@@ -3062,7 +3094,7 @@
                   "name": "b",
                   "source_info": {
                     "scope": 2,
-                    "span": 110
+                    "span": 112
                   },
                   "value": {
                     "Place": {
@@ -3077,7 +3109,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 3,
-                    "span": 118
+                    "span": 121
                   },
                   "value": {
                     "Place": {
@@ -3092,7 +3124,22 @@
                   "name": "slice",
                   "source_info": {
                     "scope": 4,
-                    "span": 119
+                    "span": 122
+                  },
+                  "value": {
+                    "Place": {
+                      "local": 1,
+                      "projection": []
+                    }
+                  }
+                },
+                {
+                  "argument_index": 1,
+                  "composite": null,
+                  "name": "self",
+                  "source_info": {
+                    "scope": 5,
+                    "span": 123
                   },
                   "value": {
                     "Place": {
@@ -3106,12 +3153,27 @@
                   "composite": null,
                   "name": "ptr",
                   "source_info": {
-                    "scope": 5,
-                    "span": 116
+                    "scope": 6,
+                    "span": 101
                   },
                   "value": {
                     "Place": {
-                      "local": 7,
+                      "local": 8,
+                      "projection": []
+                    }
+                  }
+                },
+                {
+                  "argument_index": null,
+                  "composite": null,
+                  "name": "me",
+                  "source_info": {
+                    "scope": 7,
+                    "span": 119
+                  },
+                  "value": {
+                    "Place": {
+                      "local": 8,
                       "projection": []
                     }
                   }
@@ -3121,8 +3183,8 @@
                   "composite": null,
                   "name": "self",
                   "source_info": {
-                    "scope": 6,
-                    "span": 120
+                    "scope": 8,
+                    "span": 124
                   },
                   "value": {
                     "Place": {
@@ -3136,8 +3198,58 @@
                   "composite": null,
                   "name": "self",
                   "source_info": {
-                    "scope": 7,
-                    "span": 121
+                    "scope": 9,
+                    "span": 125
+                  },
+                  "value": {
+                    "Place": {
+                      "local": 5,
+                      "projection": []
+                    }
+                  }
+                },
+                {
+                  "argument_index": 2,
+                  "composite": null,
+                  "name": "err",
+                  "source_info": {
+                    "scope": 9,
+                    "span": 126
+                  },
+                  "value": {
+                    "Const": {
+                      "const_": {
+                        "id": 16,
+                        "kind": "ZeroSized",
+                        "ty": 40
+                      },
+                      "span": 70,
+                      "user_ty": null
+                    }
+                  }
+                },
+                {
+                  "argument_index": null,
+                  "composite": null,
+                  "name": "v",
+                  "source_info": {
+                    "scope": 10,
+                    "span": 109
+                  },
+                  "value": {
+                    "Place": {
+                      "local": 11,
+                      "projection": []
+                    }
+                  }
+                },
+                {
+                  "argument_index": 1,
+                  "composite": null,
+                  "name": "self",
+                  "source_info": {
+                    "scope": 11,
+                    "span": 127
                   },
                   "value": {
                     "Place": {
@@ -3151,8 +3263,8 @@
                   "composite": null,
                   "name": "other",
                   "source_info": {
-                    "scope": 7,
-                    "span": 122
+                    "scope": 11,
+                    "span": 128
                   },
                   "value": {
                     "Place": {
@@ -3199,7 +3311,7 @@
                           }
                         ]
                       },
-                      "span": 125
+                      "span": 131
                     }
                   ],
                   "terminator": {
@@ -3226,11 +3338,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 15,
+                              "id": 17,
                               "kind": "ZeroSized",
                               "ty": 43
                             },
-                            "span": 124,
+                            "span": 130,
                             "user_ty": null
                           }
                         },
@@ -3238,40 +3350,40 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 124
+                    "span": 130
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 126
+                    "span": 132
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 127,
+                  "span": 133,
                   "ty": 9
                 },
                 {
                   "mutability": "Not",
-                  "span": 128,
+                  "span": 134,
                   "ty": 44
                 },
                 {
                   "mutability": "Not",
-                  "span": 129,
-                  "ty": 40
+                  "span": 135,
+                  "ty": 39
                 },
                 {
                   "mutability": "Mut",
-                  "span": 128,
+                  "span": 134,
                   "ty": 5
                 }
               ],
-              "span": 130,
+              "span": 136,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -3280,7 +3392,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 0,
-                    "span": 128
+                    "span": 134
                   },
                   "value": {
                     "Place": {
@@ -3295,7 +3407,7 @@
                   "name": "other",
                   "source_info": {
                     "scope": 0,
-                    "span": 129
+                    "span": 135
                   },
                   "value": {
                     "Place": {
@@ -3347,11 +3459,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 16,
+                              "id": 18,
                               "kind": "ZeroSized",
                               "ty": 45
                             },
-                            "span": 131,
+                            "span": 137,
                             "user_ty": null
                           }
                         },
@@ -3359,35 +3471,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 132
+                    "span": 138
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 133
+                    "span": 139
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 134,
+                  "span": 140,
                   "ty": 5
                 },
                 {
                   "mutability": "Not",
-                  "span": 135,
+                  "span": 141,
                   "ty": 5
                 },
                 {
                   "mutability": "Not",
-                  "span": 136,
+                  "span": 142,
                   "ty": 6
                 }
               ],
-              "span": 137,
+              "span": 143,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -3396,7 +3508,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 0,
-                    "span": 135
+                    "span": 141
                   },
                   "value": {
                     "Place": {
@@ -3411,7 +3523,7 @@
                   "name": "index",
                   "source_info": {
                     "scope": 0,
-                    "span": 136
+                    "span": 142
                   },
                   "value": {
                     "Place": {
@@ -3450,7 +3562,7 @@
                             "Use": {
                               "Constant": {
                                 "const_": {
-                                  "id": 17,
+                                  "id": 19,
                                   "kind": {
                                     "Allocated": {
                                       "align": 1,
@@ -3465,58 +3577,37 @@
                                   },
                                   "ty": 28
                                 },
-                                "span": 139,
+                                "span": 145,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 139
+                      "span": 145
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 138
+                    "span": 144
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 140,
+                  "span": 146,
                   "ty": 28
                 },
                 {
                   "mutability": "Not",
-                  "span": 141,
+                  "span": 147,
                   "ty": 12
                 }
               ],
-              "span": 142,
+              "span": 148,
               "spread_arg": null,
-              "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 141
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 6,
-                        "kind": "ZeroSized",
-                        "ty": 12
-                      },
-                      "span": 73,
-                      "user_ty": null
-                    }
-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
           "id": 12,
@@ -3551,7 +3642,7 @@
                                 {
                                   "Constant": {
                                     "const_": {
-                                      "id": 20,
+                                      "id": 22,
                                       "kind": {
                                         "Allocated": {
                                           "align": 4,
@@ -3569,14 +3660,14 @@
                                       },
                                       "ty": 27
                                     },
-                                    "span": 153,
+                                    "span": 159,
                                     "user_ty": null
                                   }
                                 },
                                 {
                                   "Constant": {
                                     "const_": {
-                                      "id": 21,
+                                      "id": 23,
                                       "kind": {
                                         "Allocated": {
                                           "align": 4,
@@ -3594,14 +3685,14 @@
                                       },
                                       "ty": 27
                                     },
-                                    "span": 154,
+                                    "span": 160,
                                     "user_ty": null
                                   }
                                 },
                                 {
                                   "Constant": {
                                     "const_": {
-                                      "id": 22,
+                                      "id": 24,
                                       "kind": {
                                         "Allocated": {
                                           "align": 4,
@@ -3619,14 +3710,14 @@
                                       },
                                       "ty": 27
                                     },
-                                    "span": 155,
+                                    "span": 161,
                                     "user_ty": null
                                   }
                                 },
                                 {
                                   "Constant": {
                                     "const_": {
-                                      "id": 23,
+                                      "id": 25,
                                       "kind": {
                                         "Allocated": {
                                           "align": 4,
@@ -3644,7 +3735,7 @@
                                       },
                                       "ty": 27
                                     },
-                                    "span": 156,
+                                    "span": 162,
                                     "user_ty": null
                                   }
                                 }
@@ -3653,7 +3744,7 @@
                           }
                         ]
                       },
-                      "span": 157
+                      "span": 163
                     },
                     {
                       "kind": {
@@ -3676,7 +3767,7 @@
                           }
                         ]
                       },
-                      "span": 158
+                      "span": 164
                     },
                     {
                       "kind": {
@@ -3704,7 +3795,7 @@
                                 {
                                   "Constant": {
                                     "const_": {
-                                      "id": 24,
+                                      "id": 26,
                                       "kind": {
                                         "Allocated": {
                                           "align": 8,
@@ -3726,14 +3817,14 @@
                                       },
                                       "ty": 0
                                     },
-                                    "span": 159,
+                                    "span": 165,
                                     "user_ty": null
                                   }
                                 },
                                 {
                                   "Constant": {
                                     "const_": {
-                                      "id": 25,
+                                      "id": 27,
                                       "kind": {
                                         "Allocated": {
                                           "align": 8,
@@ -3755,7 +3846,7 @@
                                       },
                                       "ty": 0
                                     },
-                                    "span": 160,
+                                    "span": 166,
                                     "user_ty": null
                                   }
                                 }
@@ -3764,7 +3855,7 @@
                           }
                         ]
                       },
-                      "span": 161
+                      "span": 167
                     }
                   ],
                   "terminator": {
@@ -3791,11 +3882,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 19,
+                              "id": 21,
                               "kind": "ZeroSized",
                               "ty": 47
                             },
-                            "span": 152,
+                            "span": 158,
                             "user_ty": null
                           }
                         },
@@ -3803,7 +3894,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 152
+                    "span": 158
                   }
                 },
                 {
@@ -3825,7 +3916,7 @@
                           }
                         ]
                       },
-                      "span": 163
+                      "span": 169
                     },
                     {
                       "kind": {
@@ -3848,7 +3939,7 @@
                           }
                         ]
                       },
-                      "span": 164
+                      "span": 170
                     },
                     {
                       "kind": {
@@ -3861,7 +3952,7 @@
                             "Use": {
                               "Constant": {
                                 "const_": {
-                                  "id": 27,
+                                  "id": 29,
                                   "kind": {
                                     "Allocated": {
                                       "align": 8,
@@ -3886,16 +3977,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 40
+                                  "ty": 39
                                 },
-                                "span": 165,
+                                "span": 171,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 165
+                      "span": 171
                     }
                   ],
                   "terminator": {
@@ -3922,11 +4013,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 26,
+                              "id": 28,
                               "kind": "ZeroSized",
                               "ty": 48
                             },
-                            "span": 162,
+                            "span": 168,
                             "user_ty": null
                           }
                         },
@@ -3934,7 +4025,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 162
+                    "span": 168
                   }
                 },
                 {
@@ -3959,14 +4050,14 @@
                         }
                       }
                     },
-                    "span": 162
+                    "span": 168
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 166
+                    "span": 172
                   }
                 },
                 {
@@ -3978,7 +4069,7 @@
                           {
                             "Constant": {
                               "const_": {
-                                "id": 29,
+                                "id": 31,
                                 "kind": {
                                   "Allocated": {
                                     "align": 8,
@@ -4013,7 +4104,7 @@
                                 },
                                 "ty": 50
                               },
-                              "span": 73,
+                              "span": 70,
                               "user_ty": null
                             }
                           }
@@ -4025,11 +4116,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 28,
+                              "id": 30,
                               "kind": "ZeroSized",
                               "ty": 49
                             },
-                            "span": 167,
+                            "span": 173,
                             "user_ty": null
                           }
                         },
@@ -4037,63 +4128,63 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 167
+                    "span": 173
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 168,
+                  "span": 174,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 169,
+                  "span": 175,
                   "ty": 51
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                 {
                   "mutability": "Not",
-                  "span": 170,
+                  "span": 176,
                   "ty": 5
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                 {
                   "mutability": "Not",
-                  "span": 152,
+                  "span": 158,
                   "ty": 5
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                 {
                   "mutability": "Mut",
-                  "span": 158,
-                  "ty": 37
+                  "span": 164,
+                  "ty": 36
                 },
                 {
                   "mutability": "Mut",
-                  "span": 161,
+                  "span": 167,
                   "ty": 6
                 },
                 {
                   "mutability": "Mut",
-                  "span": 162,
+                  "span": 168,
                   "ty": 9
                 },
                 {
                   "mutability": "Mut",
-                  "span": 164,
+                  "span": 170,
                   "ty": 44
                 },
                 {
                   "mutability": "Mut",
-                  "span": 165,
-                  "ty": 40
+                  "span": 171,
+                  "ty": 39
                 },
                 {
                   "mutability": "Mut",
-                  "span": 167,
+                  "span": 173,
                   "ty": 7
                 }
               ],
-              "span": 171,
+              "span": 177,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -4102,7 +4193,7 @@
                   "name": "a",
                   "source_info": {
                     "scope": 1,
-                    "span": 169
+                    "span": 175
                   },
                   "value": {
                     "Place": {
@@ -4117,7 +4208,7 @@
                   "name": "b",
                   "source_info": {
                     "scope": 2,
-                    "span": 170
+                    "span": 176
                   },
                   "value": {
                     "Place": {
@@ -4149,7 +4240,7 @@
                                 {
                                   "Constant": {
                                     "const_": {
-                                      "id": 21,
+                                      "id": 23,
                                       "kind": {
                                         "Allocated": {
                                           "align": 4,
@@ -4167,14 +4258,14 @@
                                       },
                                       "ty": 27
                                     },
-                                    "span": 172,
+                                    "span": 178,
                                     "user_ty": null
                                   }
                                 },
                                 {
                                   "Constant": {
                                     "const_": {
-                                      "id": 22,
+                                      "id": 24,
                                       "kind": {
                                         "Allocated": {
                                           "align": 4,
@@ -4192,7 +4283,7 @@
                                       },
                                       "ty": 27
                                     },
-                                    "span": 173,
+                                    "span": 179,
                                     "user_ty": null
                                   }
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@@ -4201,7 +4292,7 @@
                           }
                         ]
                       },
-                      "span": 165
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                     },
                     {
                       "kind": {
@@ -4224,28 +4315,28 @@
                           }
                         ]
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-                      "span": 165
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                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 165
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                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 165,
-                  "ty": 40
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+                  "ty": 39
                 },
                 {
                   "mutability": "Mut",
-                  "span": 165,
+                  "span": 171,
                   "ty": 52
                 }
               ],
-              "span": 165,
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               "spread_arg": null,
               "var_debug_info": []
             }
@@ -4270,7 +4361,7 @@
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 145
+                      "span": 151
                     },
                     {
                       "kind": {
@@ -4288,12 +4379,12 @@
                                   "projection": []
                                 }
                               },
-                              40
+                              39
                             ]
                           }
                         ]
                       },
-                      "span": 145
+                      "span": 151
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                   "terminator": {
@@ -4320,11 +4411,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 18,
+                              "id": 20,
                               "kind": "ZeroSized",
                               "ty": 46
                             },
-                            "span": 143,
+                            "span": 149,
                             "user_ty": null
                           }
                         },
@@ -4332,7 +4423,7 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 144
+                    "span": 150
                   }
                 },
                 {
@@ -4341,38 +4432,38 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 147
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                     "kind": "Return",
-                    "span": 146
+                    "span": 152
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               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 148,
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                   "ty": 9
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                 {
                   "mutability": "Not",
-                  "span": 149,
-                  "ty": 40
+                  "span": 155,
+                  "ty": 39
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                 {
                   "mutability": "Not",
-                  "span": 150,
-                  "ty": 40
+                  "span": 156,
+                  "ty": 39
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                 {
                   "mutability": "Mut",
-                  "span": 145,
-                  "ty": 40
+                  "span": 151,
+                  "ty": 39
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-              "span": 151,
+              "span": 157,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -4381,7 +4472,7 @@
                   "name": "a",
                   "source_info": {
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-                    "span": 149
+                    "span": 155
                   },
                   "value": {
                     "Place": {
@@ -4396,7 +4487,7 @@
                   "name": "b",
                   "source_info": {
                     "scope": 0,
-                    "span": 150
+                    "span": 156
                   },
                   "value": {
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diff --git a/tests/integration/programs/strange-ref-deref.smir.json.expected b/tests/integration/programs/strange-ref-deref.smir.json.expected
index 394ce0a..d8d139e 100644
--- a/tests/integration/programs/strange-ref-deref.smir.json.expected
+++ b/tests/integration/programs/strange-ref-deref.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
     [
-      0,
       {
         "Memory": {
           "align": 1,
@@ -43,55 +42,46 @@
   ],
   "functions": [
     [
-      0,
       {
         "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
-      13,
       {
         "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
-      14,
       {
         "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
-      19,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      20,
       {
         "IntrinsicSym": "black_box"
       }
     ],
     [
-      21,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      23,
       {
         "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
-      25,
       {
         "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
-      30,
       {
         "NoOpSym": ""
       }
@@ -137,14 +127,14 @@
                                   },
                                   "ty": 16
                                 },
-                                "span": 51,
+                                "span": 48,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
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-                      "span": 51
+                      "span": 48
                     },
                     {
                       "kind": {
@@ -167,7 +157,7 @@
                           }
                         ]
                       },
-                      "span": 52
+                      "span": 49
                     },
                     {
                       "kind": {
@@ -190,7 +180,7 @@
                           }
                         ]
                       },
-                      "span": 53
+                      "span": 50
                     },
                     {
                       "kind": {
@@ -209,7 +199,7 @@
                           }
                         ]
                       },
-                      "span": 53
+                      "span": 50
                     },
                     {
                       "kind": {
@@ -228,7 +218,7 @@
                           }
                         ]
                       },
-                      "span": 54
+                      "span": 51
                     },
                     {
                       "kind": {
@@ -249,7 +239,7 @@
                           }
                         ]
                       },
-                      "span": 55
+                      "span": 52
                     }
                   ],
                   "terminator": {
@@ -272,14 +262,14 @@
                         }
                       }
                     },
-                    "span": 50
+                    "span": 47
                   }
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                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 56
+                    "span": 53
                   }
                 },
                 {
@@ -324,9 +314,9 @@
                                     }
                                   }
                                 },
-                                "ty": 26
+                                "ty": 25
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -340,9 +330,9 @@
                             "const_": {
                               "id": 10,
                               "kind": "ZeroSized",
-                              "ty": 25
+                              "ty": 24
                             },
-                            "span": 57,
+                            "span": 54,
                             "user_ty": null
                           }
                         },
@@ -350,48 +340,48 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 57
+                    "span": 54
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 58,
+                  "span": 55,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 59,
+                  "span": 56,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 60,
-                  "ty": 27
+                  "span": 57,
+                  "ty": 26
                 },
                 {
                   "mutability": "Not",
-                  "span": 53,
-                  "ty": 28
+                  "span": 50,
+                  "ty": 27
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                 {
                   "mutability": "Mut",
-                  "span": 55,
+                  "span": 52,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 57,
-                  "ty": 29
+                  "span": 54,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
-                  "span": 53,
-                  "ty": 27
+                  "span": 50,
+                  "ty": 26
                 }
               ],
-              "span": 61,
+              "span": 58,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -400,7 +390,7 @@
                   "name": "a",
                   "source_info": {
                     "scope": 1,
-                    "span": 59
+                    "span": 56
                   },
                   "value": {
                     "Place": {
@@ -415,7 +405,7 @@
                   "name": "b",
                   "source_info": {
                     "scope": 2,
-                    "span": 60
+                    "span": 57
                   },
                   "value": {
                     "Place": {
@@ -455,12 +445,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -545,7 +529,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -556,12 +540,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -621,7 +599,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -650,51 +628,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
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                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -708,7 +686,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -718,7 +696,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -727,7 +705,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -742,7 +720,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -757,7 +735,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -772,7 +750,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -787,7 +765,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -819,19 +797,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -858,7 +836,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -883,7 +861,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -891,7 +869,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -900,7 +878,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -925,7 +903,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -933,7 +911,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -942,13 +920,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -957,42 +935,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -1016,7 +958,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1030,7 +972,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -1039,37 +981,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -1079,27 +1015,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -1112,7 +1043,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -1135,7 +1066,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -1143,21 +1074,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 30
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 5,
-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -1195,7 +1111,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1209,9 +1125,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -1219,7 +1135,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -1235,7 +1151,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1249,9 +1165,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -1259,35 +1175,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 36
+                    "span": 33
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 37,
+                  "span": 34,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 38,
+                  "span": 35,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 39,
+                  "span": 36,
                   "ty": 1
                 }
               ],
-              "span": 42,
+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1296,7 +1212,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -1311,7 +1227,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -1326,7 +1242,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -1335,7 +1251,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1387,9 +1303,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1397,35 +1313,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 22
+                  "span": 40,
+                  "ty": 21
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1436,73 +1352,6 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
-    {
-      "details": null,
-      "mono_item_kind": {
-        "MonoItemFn": {
-          "body": [
-            {
-              "arg_count": 2,
-              "blocks": [
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-                  "statements": [],
-                  "terminator": {
-                    "kind": {
-                      "Call": {
-                        "args": [],
-                        "destination": {
-                          "local": 0,
-                          "projection": []
-                        },
-                        "func": {
-                          "Move": {
-                            "local": 1,
-                            "projection": []
-                          }
-                        },
-                        "target": 1,
-                        "unwind": "Continue"
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-                    },
-                    "span": 43
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-                {
-                  "statements": [],
-                  "terminator": {
-                    "kind": "Return",
-                    "span": 43
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-              "locals": [
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-                  "span": 43,
-                  "ty": 1
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-                {
-                  "mutability": "Not",
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-                  "ty": 7
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-                {
-                  "mutability": "Not",
-                  "span": 43,
-                  "ty": 1
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-              "span": 43,
-              "spread_arg": 2,
-              "var_debug_info": []
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-          "id": 3,
-          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
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-      },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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     {
       "details": null,
       "mono_item_kind": {
@@ -1538,7 +1387,7 @@
                           }
                         ]
                       },
-                      "span": 43
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                   "terminator": {
@@ -1567,9 +1416,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1579,7 +1428,7 @@
                         }
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
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                 {
@@ -1595,14 +1444,14 @@
                         "unwind": "Continue"
                       }
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-                    "span": 43
+                    "span": 40
                   }
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                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
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                   }
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                 {
@@ -1618,40 +1467,40 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
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                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 43
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               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
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                 {
                   "mutability": "Not",
-                  "span": 43,
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                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
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                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 24
+                  "span": 40,
+                  "ty": 23
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1662,6 +1511,73 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
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+      "details": null,
+      "mono_item_kind": {
+        "MonoItemFn": {
+          "body": [
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+              "arg_count": 2,
+              "blocks": [
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+                  "terminator": {
+                    "kind": {
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+                        "args": [],
+                        "destination": {
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+                          "projection": []
+                        },
+                        "func": {
+                          "Move": {
+                            "local": 1,
+                            "projection": []
+                          }
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+                        "target": 1,
+                        "unwind": "Continue"
+                      }
+                    },
+                    "span": 40
+                  }
+                },
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+                  "statements": [],
+                  "terminator": {
+                    "kind": "Return",
+                    "span": 40
+                  }
+                }
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+              "locals": [
+                {
+                  "mutability": "Mut",
+                  "span": 40,
+                  "ty": 1
+                },
+                {
+                  "mutability": "Not",
+                  "span": 40,
+                  "ty": 7
+                },
+                {
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+                  "span": 40,
+                  "ty": 1
+                }
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+              "span": 40,
+              "spread_arg": 2,
+              "var_debug_info": []
+            }
+          ],
+          "id": 3,
+          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
+        }
+      },
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
+    },
     {
       "details": null,
       "mono_item_kind": {
@@ -1674,23 +1590,23 @@
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                 {
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+                  "ty": 21
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@@ -1737,58 +1653,37 @@
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                                   "ty": 17
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-                                "span": 46,
+                                "span": 43,
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               "locals": [
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-                        "ty": 1
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-                      "user_ty": null
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-                  }
-                }
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             }
           ],
           "id": 5,
diff --git a/tests/integration/programs/struct.smir.json.expected b/tests/integration/programs/struct.smir.json.expected
index 0eeacdd..cf13294 100644
--- a/tests/integration/programs/struct.smir.json.expected
+++ b/tests/integration/programs/struct.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
     [
-      0,
       {
         "Memory": {
           "align": 1,
@@ -49,55 +48,46 @@
   ],
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       {
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       }
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       {
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       }
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     [
-      19,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
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       {
         "IntrinsicSym": "black_box"
       }
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     [
-      21,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
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       {
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       }
     ],
     [
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       {
         "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
-      32,
       {
         "NoOpSym": ""
       }
@@ -126,12 +116,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -216,7 +200,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -227,12 +211,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
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@@ -292,7 +270,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -321,51 +299,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
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                       },
-                      "span": 8
+                      "span": 7
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                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
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                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
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                 },
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                   "mutability": "Not",
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                 {
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+                  "span": 12,
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                 {
@@ -379,7 +357,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
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                   "ty": 11
                 },
@@ -389,7 +367,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
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@@ -398,7 +376,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -413,7 +391,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
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                     "Place": {
@@ -428,7 +406,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -443,7 +421,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -458,7 +436,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -490,19 +468,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
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                     {
                       "kind": {
@@ -529,7 +507,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -554,7 +532,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -562,7 +540,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -571,7 +549,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -596,7 +574,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
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@@ -604,7 +582,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
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                 {
@@ -613,13 +591,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
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                     {
                       "kind": {
                         "StorageLive": 5
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-                      "span": 23
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                     {
                       "kind": {
@@ -628,42 +606,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
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-                    {
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-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -687,7 +629,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -701,7 +643,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -710,37 +652,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -750,27 +686,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -783,7 +714,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -806,7 +737,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -814,21 +745,6 @@
                       "projection": []
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-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 30
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 5,
-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -866,7 +782,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -880,9 +796,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -890,7 +806,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -906,7 +822,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -920,9 +836,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -930,35 +846,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 36
+                    "span": 33
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 37,
+                  "span": 34,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 38,
+                  "span": 35,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 39,
+                  "span": 36,
                   "ty": 1
                 }
               ],
-              "span": 42,
+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -967,7 +883,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -982,7 +898,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -997,7 +913,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -1006,7 +922,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1058,9 +974,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1068,35 +984,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 22
+                  "span": 40,
+                  "ty": 21
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1135,35 +1051,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1209,7 +1125,7 @@
                           }
                         ]
                       },
-                      "span": 43
+                      "span": 40
                     }
                   ],
                   "terminator": {
@@ -1238,9 +1154,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1250,7 +1166,7 @@
                         }
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1266,14 +1182,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1289,40 +1205,40 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 24
+                  "span": 40,
+                  "ty": 23
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1345,23 +1261,23 @@
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 44
+                    "span": 41
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 44,
+                  "span": 41,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 44,
-                  "ty": 22
+                  "span": 41,
+                  "ty": 21
                 }
               ],
-              "span": 44,
+              "span": 41,
               "spread_arg": null,
               "var_debug_info": []
             }
@@ -1408,58 +1324,37 @@
                                   },
                                   "ty": 17
                                 },
-                                "span": 46,
+                                "span": 43,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 46
+                      "span": 43
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 45
+                    "span": 42
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 47,
+                  "span": 44,
                   "ty": 17
                 },
                 {
                   "mutability": "Not",
-                  "span": 48,
+                  "span": 45,
                   "ty": 1
                 }
               ],
-              "span": 49,
+              "span": 46,
               "spread_arg": null,
-              "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 48
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 4,
-                        "kind": "ZeroSized",
-                        "ty": 1
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
           "id": 5,
@@ -1516,9 +1411,9 @@
                                           }
                                         }
                                       },
-                                      "ty": 26
+                                      "ty": 25
                                     },
-                                    "span": 52,
+                                    "span": 49,
                                     "user_ty": null
                                   }
                                 },
@@ -1541,9 +1436,9 @@
                                           }
                                         }
                                       },
-                                      "ty": 26
+                                      "ty": 25
                                     },
-                                    "span": 53,
+                                    "span": 50,
                                     "user_ty": null
                                   }
                                 }
@@ -1552,7 +1447,7 @@
                           }
                         ]
                       },
-                      "span": 54
+                      "span": 51
                     },
                     {
                       "kind": {
@@ -1569,7 +1464,7 @@
                                   {
                                     "Field": [
                                       0,
-                                      26
+                                      25
                                     ]
                                   }
                                 ]
@@ -1578,7 +1473,7 @@
                           }
                         ]
                       },
-                      "span": 55
+                      "span": 52
                     },
                     {
                       "kind": {
@@ -1615,9 +1510,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 26
+                                    "ty": 25
                                   },
-                                  "span": 50,
+                                  "span": 47,
                                   "user_ty": null
                                 }
                               }
@@ -1625,7 +1520,7 @@
                           }
                         ]
                       },
-                      "span": 51
+                      "span": 48
                     }
                   ],
                   "terminator": {
@@ -1638,7 +1533,7 @@
                               {
                                 "Field": [
                                   1,
-                                  25
+                                  24
                                 ]
                               }
                             ]
@@ -1673,9 +1568,9 @@
                                       }
                                     }
                                   },
-                                  "ty": 26
+                                  "ty": 25
                                 },
-                                "span": 50,
+                                "span": 47,
                                 "user_ty": null
                               }
                             }
@@ -1685,7 +1580,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 51
+                    "span": 48
                   }
                 },
                 {
@@ -1705,7 +1600,7 @@
                                   {
                                     "Field": [
                                       0,
-                                      26
+                                      25
                                     ]
                                   }
                                 ]
@@ -1714,7 +1609,7 @@
                           }
                         ]
                       },
-                      "span": 51
+                      "span": 48
                     },
                     {
                       "kind": {
@@ -1731,7 +1626,7 @@
                                   {
                                     "Field": [
                                       1,
-                                      26
+                                      25
                                     ]
                                   }
                                 ]
@@ -1740,7 +1635,7 @@
                           }
                         ]
                       },
-                      "span": 57
+                      "span": 54
                     },
                     {
                       "kind": {
@@ -1768,7 +1663,7 @@
                           }
                         ]
                       },
-                      "span": 56
+                      "span": 53
                     }
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                   "terminator": {
@@ -1791,14 +1686,14 @@
                         }
                       }
                     },
-                    "span": 56
+                    "span": 53
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 58
+                    "span": 55
                   }
                 },
                 {
@@ -1843,9 +1738,9 @@
                                     }
                                   }
                                 },
-                                "ty": 28
+                                "ty": 27
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1859,9 +1754,9 @@
                             "const_": {
                               "id": 11,
                               "kind": "ZeroSized",
-                              "ty": 27
+                              "ty": 26
                             },
-                            "span": 59,
+                            "span": 56,
                             "user_ty": null
                           }
                         },
@@ -1869,53 +1764,53 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 59
+                    "span": 56
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 60,
+                  "span": 57,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 61,
-                  "ty": 29
+                  "span": 58,
+                  "ty": 28
                 },
                 {
                   "mutability": "Mut",
-                  "span": 56,
-                  "ty": 25
+                  "span": 53,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 51,
-                  "ty": 26
+                  "span": 48,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 55,
-                  "ty": 26
+                  "span": 52,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 51,
-                  "ty": 30
+                  "span": 48,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 57,
-                  "ty": 26
+                  "span": 54,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 59,
-                  "ty": 31
+                  "span": 56,
+                  "ty": 30
                 }
               ],
-              "span": 62,
+              "span": 59,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1924,7 +1819,7 @@
                   "name": "s",
                   "source_info": {
                     "scope": 1,
-                    "span": 61
+                    "span": 58
                   },
                   "value": {
                     "Place": {
diff --git a/tests/integration/programs/sum-to-n.smir.json.expected b/tests/integration/programs/sum-to-n.smir.json.expected
index 3aa2d1b..b9b0985 100644
--- a/tests/integration/programs/sum-to-n.smir.json.expected
+++ b/tests/integration/programs/sum-to-n.smir.json.expected
@@ -1,7 +1,6 @@
 {
   "allocs": [
     [
-      0,
       {
         "Memory": {
           "align": 1,
@@ -41,67 +40,56 @@
   ],
   "functions": [
     [
-      0,
       {
         "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
-      13,
       {
         "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
-      14,
       {
         "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
-      19,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      20,
       {
         "IntrinsicSym": "black_box"
       }
     ],
     [
-      21,
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
       }
     ],
     [
-      23,
       {
         "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
       }
     ],
     [
-      28,
       {
         "NormalSym": "_ZN8sum_to_n8sum_to_n17h"
       }
     ],
     [
-      29,
       {
         "NormalSym": "_ZN4core9panicking5panic17h"
       }
     ],
     [
-      32,
       {
         "NormalSym": "_ZN8sum_to_n13test_sum_to_n17h"
       }
     ],
     [
-      33,
       {
         "NoOpSym": ""
       }
@@ -130,12 +118,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -220,7 +202,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -231,12 +213,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -296,7 +272,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -325,51 +301,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -383,7 +359,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -393,7 +369,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -402,7 +378,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -417,7 +393,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -432,7 +408,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -447,7 +423,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -462,7 +438,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -494,19 +470,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -533,7 +509,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -558,7 +534,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -566,7 +542,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -575,7 +551,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -600,7 +576,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -608,7 +584,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -617,13 +593,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -632,42 +608,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -691,7 +631,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -705,7 +645,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -714,37 +654,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -754,27 +688,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -787,7 +716,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -810,7 +739,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -818,21 +747,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 30
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 5,
-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -870,7 +784,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -884,9 +798,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -894,7 +808,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -910,7 +824,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -924,9 +838,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -934,35 +848,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 36
+                    "span": 33
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 37,
+                  "span": 34,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 38,
+                  "span": 35,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 39,
+                  "span": 36,
                   "ty": 1
                 }
               ],
-              "span": 42,
+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -971,7 +885,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -986,7 +900,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -1001,7 +915,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -1010,7 +924,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1062,9 +976,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1072,35 +986,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 22
+                  "span": 40,
+                  "ty": 21
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1111,73 +1025,6 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
-    {
-      "details": null,
-      "mono_item_kind": {
-        "MonoItemFn": {
-          "body": [
-            {
-              "arg_count": 2,
-              "blocks": [
-                {
-                  "statements": [],
-                  "terminator": {
-                    "kind": {
-                      "Call": {
-                        "args": [],
-                        "destination": {
-                          "local": 0,
-                          "projection": []
-                        },
-                        "func": {
-                          "Move": {
-                            "local": 1,
-                            "projection": []
-                          }
-                        },
-                        "target": 1,
-                        "unwind": "Continue"
-                      }
-                    },
-                    "span": 43
-                  }
-                },
-                {
-                  "statements": [],
-                  "terminator": {
-                    "kind": "Return",
-                    "span": 43
-                  }
-                }
-              ],
-              "locals": [
-                {
-                  "mutability": "Mut",
-                  "span": 43,
-                  "ty": 1
-                },
-                {
-                  "mutability": "Not",
-                  "span": 43,
-                  "ty": 7
-                },
-                {
-                  "mutability": "Not",
-                  "span": 43,
-                  "ty": 1
-                }
-              ],
-              "span": 43,
-              "spread_arg": 2,
-              "var_debug_info": []
-            }
-          ],
-          "id": 3,
-          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
-        }
-      },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
-    },
     {
       "details": null,
       "mono_item_kind": {
@@ -1213,7 +1060,7 @@
                           }
                         ]
                       },
-                      "span": 43
+                      "span": 40
                     }
                   ],
                   "terminator": {
@@ -1242,9 +1089,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1254,7 +1101,7 @@
                         }
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1270,14 +1117,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1293,40 +1140,40 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 24
+                  "span": 40,
+                  "ty": 23
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1337,6 +1184,73 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
+    {
+      "details": null,
+      "mono_item_kind": {
+        "MonoItemFn": {
+          "body": [
+            {
+              "arg_count": 2,
+              "blocks": [
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": {
+                      "Call": {
+                        "args": [],
+                        "destination": {
+                          "local": 0,
+                          "projection": []
+                        },
+                        "func": {
+                          "Move": {
+                            "local": 1,
+                            "projection": []
+                          }
+                        },
+                        "target": 1,
+                        "unwind": "Continue"
+                      }
+                    },
+                    "span": 40
+                  }
+                },
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": "Return",
+                    "span": 40
+                  }
+                }
+              ],
+              "locals": [
+                {
+                  "mutability": "Mut",
+                  "span": 40,
+                  "ty": 1
+                },
+                {
+                  "mutability": "Not",
+                  "span": 40,
+                  "ty": 7
+                },
+                {
+                  "mutability": "Not",
+                  "span": 40,
+                  "ty": 1
+                }
+              ],
+              "span": 40,
+              "spread_arg": 2,
+              "var_debug_info": []
+            }
+          ],
+          "id": 3,
+          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
+        }
+      },
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
+    },
     {
       "details": null,
       "mono_item_kind": {
@@ -1349,23 +1263,23 @@
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 44
+                    "span": 41
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 44,
+                  "span": 41,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 44,
-                  "ty": 22
+                  "span": 41,
+                  "ty": 21
                 }
               ],
-              "span": 44,
+              "span": 41,
               "spread_arg": null,
               "var_debug_info": []
             }
@@ -1412,58 +1326,37 @@
                                   },
                                   "ty": 17
                                 },
-                                "span": 46,
+                                "span": 43,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 46
+                      "span": 43
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 45
+                    "span": 42
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 47,
+                  "span": 44,
                   "ty": 17
                 },
                 {
                   "mutability": "Not",
-                  "span": 48,
+                  "span": 45,
                   "ty": 1
                 }
               ],
-              "span": 49,
+              "span": 46,
               "spread_arg": null,
-              "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 48
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 4,
-                        "kind": "ZeroSized",
-                        "ty": 1
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
           "id": 5,
@@ -1513,16 +1406,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 25
+                                  "ty": 24
                                 },
-                                "span": 71,
+                                "span": 68,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 72
+                      "span": 69
                     }
                   ],
                   "terminator": {
@@ -1545,9 +1438,9 @@
                             "const_": {
                               "id": 11,
                               "kind": "ZeroSized",
-                              "ty": 28
+                              "ty": 27
                             },
-                            "span": 69,
+                            "span": 66,
                             "user_ty": null
                           }
                         },
@@ -1555,7 +1448,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 70
+                    "span": 67
                   }
                 },
                 {
@@ -1591,16 +1484,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 25
+                                  "ty": 24
                                 },
-                                "span": 74,
+                                "span": 71,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 75
+                      "span": 72
                     },
                     {
                       "kind": {
@@ -1628,7 +1521,7 @@
                           }
                         ]
                       },
-                      "span": 76
+                      "span": 73
                     }
                   ],
                   "terminator": {
@@ -1651,7 +1544,7 @@
                         }
                       }
                     },
-                    "span": 73
+                    "span": 70
                   }
                 },
                 {
@@ -1696,9 +1589,9 @@
                                     }
                                   }
                                 },
-                                "ty": 30
+                                "ty": 29
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1712,9 +1605,9 @@
                             "const_": {
                               "id": 14,
                               "kind": "ZeroSized",
-                              "ty": 29
+                              "ty": 28
                             },
-                            "span": 77,
+                            "span": 74,
                             "user_ty": null
                           }
                         },
@@ -1722,50 +1615,50 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 77
+                    "span": 74
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 78
+                    "span": 75
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 79,
+                  "span": 76,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 80,
-                  "ty": 26
+                  "span": 77,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 70,
-                  "ty": 25
+                  "span": 67,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 72,
-                  "ty": 25
+                  "span": 69,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 75,
-                  "ty": 25
+                  "span": 72,
+                  "ty": 24
                 },
                 {
                   "mutability": "Mut",
-                  "span": 77,
-                  "ty": 31
+                  "span": 74,
+                  "ty": 30
                 }
               ],
-              "span": 83,
+              "span": 80,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1774,7 +1667,7 @@
                   "name": "n",
                   "source_info": {
                     "scope": 1,
-                    "span": 81
+                    "span": 78
                   },
                   "value": {
                     "Const": {
@@ -1799,9 +1692,9 @@
                             }
                           }
                         },
-                        "ty": 25
+                        "ty": 24
                       },
-                      "span": 71,
+                      "span": 68,
                       "user_ty": null
                     }
                   }
@@ -1812,7 +1705,7 @@
                   "name": "golden",
                   "source_info": {
                     "scope": 2,
-                    "span": 82
+                    "span": 79
                   },
                   "value": {
                     "Const": {
@@ -1837,9 +1730,9 @@
                             }
                           }
                         },
-                        "ty": 25
+                        "ty": 24
                       },
-                      "span": 74,
+                      "span": 71,
                       "user_ty": null
                     }
                   }
@@ -1850,7 +1743,7 @@
                   "name": "sucess",
                   "source_info": {
                     "scope": 3,
-                    "span": 80
+                    "span": 77
                   },
                   "value": {
                     "Place": {
@@ -1891,9 +1784,9 @@
                             "const_": {
                               "id": 16,
                               "kind": "ZeroSized",
-                              "ty": 32
+                              "ty": 31
                             },
-                            "span": 84,
+                            "span": 81,
                             "user_ty": null
                           }
                         },
@@ -1901,30 +1794,30 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 85
+                    "span": 82
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 86
+                    "span": 83
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 87,
+                  "span": 84,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 85,
+                  "span": 82,
                   "ty": 1
                 }
               ],
-              "span": 88,
+              "span": 85,
               "spread_arg": null,
               "var_debug_info": []
             }
@@ -1976,16 +1869,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 25
+                                  "ty": 24
                                 },
-                                "span": 51,
+                                "span": 48,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 51
+                      "span": 48
                     },
                     {
                       "kind": {
@@ -2004,7 +1897,7 @@
                           }
                         ]
                       },
-                      "span": 52
+                      "span": 49
                     }
                   ],
                   "terminator": {
@@ -2013,7 +1906,7 @@
                         "target": 1
                       }
                     },
-                    "span": 50
+                    "span": 47
                   }
                 },
                 {
@@ -2035,7 +1928,7 @@
                           }
                         ]
                       },
-                      "span": 54
+                      "span": 51
                     },
                     {
                       "kind": {
@@ -2076,9 +1969,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 25
+                                    "ty": 24
                                   },
-                                  "span": 55,
+                                  "span": 52,
                                   "user_ty": null
                                 }
                               }
@@ -2086,7 +1979,7 @@
                           }
                         ]
                       },
-                      "span": 53
+                      "span": 50
                     }
                   ],
                   "terminator": {
@@ -2109,7 +2002,7 @@
                         }
                       }
                     },
-                    "span": 53
+                    "span": 50
                   }
                 },
                 {
@@ -2131,7 +2024,7 @@
                           }
                         ]
                       },
-                      "span": 57
+                      "span": 54
                     },
                     {
                       "kind": {
@@ -2159,7 +2052,7 @@
                           }
                         ]
                       },
-                      "span": 56
+                      "span": 53
                     }
                   ],
                   "terminator": {
@@ -2172,7 +2065,7 @@
                               {
                                 "Field": [
                                   1,
-                                  26
+                                  25
                                 ]
                               }
                             ]
@@ -2200,7 +2093,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 56
+                    "span": 53
                   }
                 },
                 {
@@ -2220,7 +2113,7 @@
                                   {
                                     "Field": [
                                       0,
-                                      25
+                                      24
                                     ]
                                   }
                                 ]
@@ -2229,7 +2122,7 @@
                           }
                         ]
                       },
-                      "span": 56
+                      "span": 53
                     },
                     {
                       "kind": {
@@ -2248,7 +2141,7 @@
                           }
                         ]
                       },
-                      "span": 60
+                      "span": 57
                     },
                     {
                       "kind": {
@@ -2289,9 +2182,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 25
+                                    "ty": 24
                                   },
-                                  "span": 58,
+                                  "span": 55,
                                   "user_ty": null
                                 }
                               }
@@ -2299,7 +2192,7 @@
                           }
                         ]
                       },
-                      "span": 59
+                      "span": 56
                     }
                   ],
                   "terminator": {
@@ -2312,7 +2205,7 @@
                               {
                                 "Field": [
                                   1,
-                                  26
+                                  25
                                 ]
                               }
                             ]
@@ -2351,9 +2244,9 @@
                                       }
                                     }
                                   },
-                                  "ty": 25
+                                  "ty": 24
                                 },
-                                "span": 58,
+                                "span": 55,
                                 "user_ty": null
                               }
                             }
@@ -2363,7 +2256,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 59
+                    "span": 56
                   }
                 },
                 {
@@ -2383,7 +2276,7 @@
                                   {
                                     "Field": [
                                       0,
-                                      25
+                                      24
                                     ]
                                   }
                                 ]
@@ -2392,7 +2285,7 @@
                           }
                         ]
                       },
-                      "span": 61
+                      "span": 58
                     }
                   ],
                   "terminator": {
@@ -2401,7 +2294,7 @@
                         "target": 1
                       }
                     },
-                    "span": 50
+                    "span": 47
                   }
                 },
                 {
@@ -2423,68 +2316,68 @@
                           }
                         ]
                       },
-                      "span": 63
+                      "span": 60
                     }
                   ],
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diff --git a/tests/integration/programs/tuple-eq.smir.json.expected b/tests/integration/programs/tuple-eq.smir.json.expected
index 00dc480..d64beff 100644
--- a/tests/integration/programs/tuple-eq.smir.json.expected
+++ b/tests/integration/programs/tuple-eq.smir.json.expected
@@ -1,7 +1,6 @@
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@@ -161,12 +148,6 @@
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@@ -251,7 +232,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
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                                   "projection": []
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@@ -262,12 +243,6 @@
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@@ -356,51 +331,51 @@
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@@ -414,7 +389,7 @@
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@@ -424,7 +399,7 @@
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@@ -448,7 +423,7 @@
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@@ -463,7 +438,7 @@
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@@ -525,19 +500,19 @@
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                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
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@@ -597,7 +572,7 @@
                         "unwind": "Continue"
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@@ -631,7 +606,7 @@
                               "kind": "ZeroSized",
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@@ -639,7 +614,7 @@
                         "unwind": "Continue"
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@@ -663,42 +638,6 @@
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-                                      15
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@@ -722,7 +661,7 @@
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@@ -736,7 +675,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
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@@ -745,37 +684,31 @@
                           }
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-                      "span": 25
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-                    {
-                      "kind": {
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+                    "span": 20
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+                  "span": 26,
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@@ -785,27 +718,22 @@
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-                },
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@@ -818,7 +746,7 @@
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@@ -841,7 +769,7 @@
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@@ -901,7 +814,7 @@
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@@ -915,9 +828,9 @@
                             "const_": {
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                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
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@@ -925,7 +838,7 @@
                         "unwind": "Continue"
                       }
                     },
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+                    "span": 30
                   }
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                 {
@@ -941,7 +854,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
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@@ -955,9 +868,9 @@
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@@ -965,35 +878,35 @@
                         "unwind": "Unreachable"
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                   "terminator": {
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@@ -1145,55 +1058,55 @@
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@@ -1217,7 +1130,7 @@
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@@ -1273,9 +1186,9 @@
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@@ -1283,35 +1196,35 @@
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     {
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@@ -1357,7 +1337,7 @@
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@@ -1386,9 +1366,9 @@
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                               "kind": "ZeroSized",
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                             },
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@@ -1398,7 +1378,7 @@
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@@ -1414,14 +1394,14 @@
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@@ -1437,40 +1417,40 @@
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                 },
                 {
                   "mutability": "Not",
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                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 52,
-                  "ty": 26
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+                  "ty": 25
                 }
               ],
-              "span": 52,
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               "spread_arg": 2,
               "var_debug_info": []
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@@ -1481,73 +1461,6 @@
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-      "mono_item_kind": {
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-                            "projection": []
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-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
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     {
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       "mono_item_kind": {
@@ -1560,23 +1473,23 @@
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 53
+                    "span": 50
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 53,
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                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 53,
-                  "ty": 24
+                  "span": 50,
+                  "ty": 23
                 }
               ],
-              "span": 53,
+              "span": 50,
               "spread_arg": null,
               "var_debug_info": []
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@@ -1601,13 +1514,13 @@
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                         "StorageLive": 3
                       },
-                      "span": 54
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                         "StorageLive": 4
                       },
-                      "span": 55
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                     },
                     {
                       "kind": {
@@ -1638,13 +1551,13 @@
                           }
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                       },
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                     },
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                       "kind": {
@@ -1675,7 +1588,7 @@
                           }
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                       },
-                      "span": 56
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                     }
                   ],
                   "terminator": {
@@ -1704,9 +1617,9 @@
                             "const_": {
                               "id": 8,
                               "kind": "ZeroSized",
-                              "ty": 27
+                              "ty": 26
                             },
-                            "span": 54,
+                            "span": 51,
                             "user_ty": null
                           }
                         },
@@ -1714,7 +1627,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 54
+                    "span": 51
                   }
                 },
                 {
@@ -1739,7 +1652,7 @@
                         }
                       }
                     },
-                    "span": 54
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@@ -1748,19 +1661,19 @@
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@@ -1791,13 +1704,13 @@
                           }
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                     },
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@@ -1828,7 +1741,7 @@
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@@ -1857,9 +1770,9 @@
                             "const_": {
                               "id": 8,
                               "kind": "ZeroSized",
-                              "ty": 27
+                              "ty": 26
                             },
-                            "span": 54,
+                            "span": 51,
                             "user_ty": null
                           }
                         },
@@ -1867,7 +1780,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 54
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@@ -1876,13 +1789,13 @@
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 57
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                     {
                       "kind": {
                         "StorageDead": 4
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-                      "span": 57
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                     },
                     {
                       "kind": {
@@ -1908,16 +1821,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 21
+                                  "ty": 20
                                 },
-                                "span": 54,
+                                "span": 51,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
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-                      "span": 54
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                     }
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@@ -1926,7 +1839,7 @@
                         "target": 5
                       }
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-                    "span": 54
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                   }
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                 {
@@ -1935,13 +1848,13 @@
                       "kind": {
                         "StorageDead": 7
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-                      "span": 57
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                     {
                       "kind": {
                         "StorageDead": 6
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-                      "span": 57
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@@ -1950,7 +1863,7 @@
                         "target": 5
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-                    "span": 54
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                   }
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@@ -1959,58 +1872,58 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 57
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                     }
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                     "kind": "Return",
-                    "span": 58
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                   }
                 }
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               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 59,
-                  "ty": 21
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+                  "ty": 20
                 },
                 {
                   "mutability": "Not",
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-                  "ty": 28
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                 {
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                 {
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                 {
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@@ -2019,7 +1932,7 @@
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@@ -2034,7 +1947,7 @@
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@@ -2088,58 +2001,37 @@
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-                      "user_ty": null
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@@ -2190,7 +2082,7 @@
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@@ -2215,7 +2107,7 @@
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@@ -2224,7 +2116,7 @@
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@@ -2285,16 +2177,16 @@
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@@ -2323,9 +2215,9 @@
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-                            "span": 68,
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@@ -2333,7 +2225,7 @@
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@@ -2410,9 +2302,9 @@
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@@ -2426,9 +2318,9 @@
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@@ -2436,43 +2328,43 @@
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@@ -2481,7 +2373,7 @@
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@@ -2529,7 +2421,7 @@
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@@ -2554,7 +2446,7 @@
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@@ -2563,7 +2455,7 @@
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@@ -2586,28 +2478,28 @@
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diff --git a/tests/integration/programs/tuples-simple.smir.json.expected b/tests/integration/programs/tuples-simple.smir.json.expected
index ca8895d..b289b9d 100644
--- a/tests/integration/programs/tuples-simple.smir.json.expected
+++ b/tests/integration/programs/tuples-simple.smir.json.expected
@@ -1,7 +1,6 @@
 {
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     [
-      0,
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@@ -49,55 +48,46 @@
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       }
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     [
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       {
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       {
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       }
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       {
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       {
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       {
         "NoOpSym": ""
       }
@@ -146,7 +136,7 @@
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                                       "ty": 16
                                     },
-                                    "span": 51,
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                                     "user_ty": null
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@@ -171,7 +161,7 @@
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@@ -180,7 +170,7 @@
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@@ -206,7 +196,7 @@
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@@ -232,7 +222,7 @@
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@@ -260,7 +250,7 @@
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@@ -283,14 +273,14 @@
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@@ -335,9 +325,9 @@
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@@ -351,9 +341,9 @@
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+                              "ty": 24
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@@ -361,43 +351,43 @@
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@@ -406,7 +396,7 @@
                   "name": "tup",
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+                    "span": 56
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@@ -446,12 +436,6 @@
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-                      "span": 2
-                    },
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                         "StorageLive": 8
@@ -536,7 +520,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
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@@ -547,12 +531,6 @@
                         ]
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-                    },
-                    {
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@@ -612,7 +590,7 @@
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                     },
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                       "kind": {
@@ -641,51 +619,51 @@
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                     {
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+                    "span": 4
                   }
                 }
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               "locals": [
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                 {
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                 {
@@ -699,7 +677,7 @@
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                 {
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@@ -709,7 +687,7 @@
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+              "span": 13,
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@@ -718,7 +696,7 @@
                   "name": "main",
                   "source_info": {
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                   },
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@@ -733,7 +711,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
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+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -748,7 +726,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -763,7 +741,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -778,7 +756,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -810,19 +788,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -849,7 +827,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -874,7 +852,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -882,7 +860,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -891,7 +869,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -916,7 +894,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -924,7 +902,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -933,13 +911,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -948,42 +926,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -1007,7 +949,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1021,7 +963,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -1030,37 +972,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -1070,27 +1006,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -1103,7 +1034,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -1126,7 +1057,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -1134,21 +1065,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 30
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 5,
-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -1186,7 +1102,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1200,9 +1116,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -1210,7 +1126,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -1226,7 +1142,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1240,9 +1156,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -1250,35 +1166,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 36
+                    "span": 33
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 37,
+                  "span": 34,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 38,
+                  "span": 35,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 39,
+                  "span": 36,
                   "ty": 1
                 }
               ],
-              "span": 42,
+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1287,7 +1203,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -1302,7 +1218,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -1317,7 +1233,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -1326,7 +1242,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1378,9 +1294,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1388,35 +1304,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 22
+                  "span": 40,
+                  "ty": 21
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1455,35 +1371,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1529,7 +1445,7 @@
                           }
                         ]
                       },
-                      "span": 43
+                      "span": 40
                     }
                   ],
                   "terminator": {
@@ -1558,9 +1474,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1570,7 +1486,7 @@
                         }
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1586,14 +1502,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1609,40 +1525,40 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 24
+                  "span": 40,
+                  "ty": 23
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1665,23 +1581,23 @@
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 44
+                    "span": 41
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 44,
+                  "span": 41,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 44,
-                  "ty": 22
+                  "span": 41,
+                  "ty": 21
                 }
               ],
-              "span": 44,
+              "span": 41,
               "spread_arg": null,
               "var_debug_info": []
             }
@@ -1728,58 +1644,37 @@
                                   },
                                   "ty": 17
                                 },
-                                "span": 46,
+                                "span": 43,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 46
+                      "span": 43
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 45
+                    "span": 42
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 47,
+                  "span": 44,
                   "ty": 17
                 },
                 {
                   "mutability": "Not",
-                  "span": 48,
+                  "span": 45,
                   "ty": 1
                 }
               ],
-              "span": 49,
+              "span": 46,
               "spread_arg": null,
-              "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 48
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 4,
-                        "kind": "ZeroSized",
-                        "ty": 1
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
           "id": 5,

From c8665097bb006139f83be7365037e2d6f8835848 Mon Sep 17 00:00:00 2001
From: Jost Berthold <jost.berthold@gmail.com>
Date: Thu, 16 Jan 2025 11:13:28 +1100
Subject: [PATCH 13/15] include function name in sort key for items (call_once
 duplicates)

---
 tests/integration/normalise-filter.jq         |   4 +-
 .../programs/assert_eq.smir.json.expected     | 134 +++++++++---------
 .../programs/binop.smir.json.expected         | 134 +++++++++---------
 .../const-arithm-simple.smir.json.expected    | 134 +++++++++---------
 .../double-ref-deref.smir.json.expected       | 134 +++++++++---------
 .../programs/fibonacci.smir.json.expected     | 134 +++++++++---------
 .../primitive-type-bounds.smir.json.expected  | 134 +++++++++---------
 .../recursion-simple-match.smir.json.expected | 134 +++++++++---------
 .../recursion-simple.smir.json.expected       | 134 +++++++++---------
 .../programs/slice.smir.json.expected         | 134 +++++++++---------
 .../strange-ref-deref.smir.json.expected      | 134 +++++++++---------
 .../programs/sum-to-n.smir.json.expected      | 134 +++++++++---------
 12 files changed, 739 insertions(+), 739 deletions(-)

diff --git a/tests/integration/normalise-filter.jq b/tests/integration/normalise-filter.jq
index fc04d8a..31dd8a2 100644
--- a/tests/integration/normalise-filter.jq
+++ b/tests/integration/normalise-filter.jq
@@ -17,7 +17,7 @@
     ),
   items:
     ( [ .items[] ]
-# sort items by symbol name they refer to
-        | sort_by(.symbol_name)
+# sort items by symbol name they refer to and by the function name for functions
+        | sort_by(.symbol_name, .mono_item_kind.MonoItemFn.name)
     )
 }
\ No newline at end of file
diff --git a/tests/integration/programs/assert_eq.smir.json.expected b/tests/integration/programs/assert_eq.smir.json.expected
index 716eaef..be856ca 100644
--- a/tests/integration/programs/assert_eq.smir.json.expected
+++ b/tests/integration/programs/assert_eq.smir.json.expected
@@ -977,6 +977,73 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
+    {
+      "details": null,
+      "mono_item_kind": {
+        "MonoItemFn": {
+          "body": [
+            {
+              "arg_count": 2,
+              "blocks": [
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": {
+                      "Call": {
+                        "args": [],
+                        "destination": {
+                          "local": 0,
+                          "projection": []
+                        },
+                        "func": {
+                          "Move": {
+                            "local": 1,
+                            "projection": []
+                          }
+                        },
+                        "target": 1,
+                        "unwind": "Continue"
+                      }
+                    },
+                    "span": 40
+                  }
+                },
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": "Return",
+                    "span": 40
+                  }
+                }
+              ],
+              "locals": [
+                {
+                  "mutability": "Mut",
+                  "span": 40,
+                  "ty": 1
+                },
+                {
+                  "mutability": "Not",
+                  "span": 40,
+                  "ty": 7
+                },
+                {
+                  "mutability": "Not",
+                  "span": 40,
+                  "ty": 1
+                }
+              ],
+              "span": 40,
+              "spread_arg": 2,
+              "var_debug_info": []
+            }
+          ],
+          "id": 3,
+          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
+        }
+      },
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
+    },
     {
       "details": null,
       "mono_item_kind": {
@@ -1136,73 +1203,6 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
-    {
-      "details": null,
-      "mono_item_kind": {
-        "MonoItemFn": {
-          "body": [
-            {
-              "arg_count": 2,
-              "blocks": [
-                {
-                  "statements": [],
-                  "terminator": {
-                    "kind": {
-                      "Call": {
-                        "args": [],
-                        "destination": {
-                          "local": 0,
-                          "projection": []
-                        },
-                        "func": {
-                          "Move": {
-                            "local": 1,
-                            "projection": []
-                          }
-                        },
-                        "target": 1,
-                        "unwind": "Continue"
-                      }
-                    },
-                    "span": 40
-                  }
-                },
-                {
-                  "statements": [],
-                  "terminator": {
-                    "kind": "Return",
-                    "span": 40
-                  }
-                }
-              ],
-              "locals": [
-                {
-                  "mutability": "Mut",
-                  "span": 40,
-                  "ty": 1
-                },
-                {
-                  "mutability": "Not",
-                  "span": 40,
-                  "ty": 7
-                },
-                {
-                  "mutability": "Not",
-                  "span": 40,
-                  "ty": 1
-                }
-              ],
-              "span": 40,
-              "spread_arg": 2,
-              "var_debug_info": []
-            }
-          ],
-          "id": 3,
-          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
-        }
-      },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
-    },
     {
       "details": null,
       "mono_item_kind": {
diff --git a/tests/integration/programs/binop.smir.json.expected b/tests/integration/programs/binop.smir.json.expected
index 05ded48..39e9921 100644
--- a/tests/integration/programs/binop.smir.json.expected
+++ b/tests/integration/programs/binop.smir.json.expected
@@ -2086,6 +2086,73 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
+    {
+      "details": null,
+      "mono_item_kind": {
+        "MonoItemFn": {
+          "body": [
+            {
+              "arg_count": 2,
+              "blocks": [
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": {
+                      "Call": {
+                        "args": [],
+                        "destination": {
+                          "local": 0,
+                          "projection": []
+                        },
+                        "func": {
+                          "Move": {
+                            "local": 1,
+                            "projection": []
+                          }
+                        },
+                        "target": 1,
+                        "unwind": "Continue"
+                      }
+                    },
+                    "span": 40
+                  }
+                },
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": "Return",
+                    "span": 40
+                  }
+                }
+              ],
+              "locals": [
+                {
+                  "mutability": "Mut",
+                  "span": 40,
+                  "ty": 1
+                },
+                {
+                  "mutability": "Not",
+                  "span": 40,
+                  "ty": 7
+                },
+                {
+                  "mutability": "Not",
+                  "span": 40,
+                  "ty": 1
+                }
+              ],
+              "span": 40,
+              "spread_arg": 2,
+              "var_debug_info": []
+            }
+          ],
+          "id": 3,
+          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
+        }
+      },
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
+    },
     {
       "details": null,
       "mono_item_kind": {
@@ -2245,73 +2312,6 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
-    {
-      "details": null,
-      "mono_item_kind": {
-        "MonoItemFn": {
-          "body": [
-            {
-              "arg_count": 2,
-              "blocks": [
-                {
-                  "statements": [],
-                  "terminator": {
-                    "kind": {
-                      "Call": {
-                        "args": [],
-                        "destination": {
-                          "local": 0,
-                          "projection": []
-                        },
-                        "func": {
-                          "Move": {
-                            "local": 1,
-                            "projection": []
-                          }
-                        },
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index 18a6705..a5c6988 100644
--- a/tests/integration/programs/const-arithm-simple.smir.json.expected
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index 3dc9b49..53d05f1 100644
--- a/tests/integration/programs/double-ref-deref.smir.json.expected
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       "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
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diff --git a/tests/integration/programs/fibonacci.smir.json.expected b/tests/integration/programs/fibonacci.smir.json.expected
index 4d6cad5..b716cd6 100644
--- a/tests/integration/programs/fibonacci.smir.json.expected
+++ b/tests/integration/programs/fibonacci.smir.json.expected
@@ -1022,6 +1022,73 @@
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       "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
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index b68ee58..86bf1a4 100644
--- a/tests/integration/programs/primitive-type-bounds.smir.json.expected
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diff --git a/tests/integration/programs/recursion-simple-match.smir.json.expected b/tests/integration/programs/recursion-simple-match.smir.json.expected
index 6e38528..d6f6751 100644
--- a/tests/integration/programs/recursion-simple-match.smir.json.expected
+++ b/tests/integration/programs/recursion-simple-match.smir.json.expected
@@ -1665,6 +1665,73 @@
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diff --git a/tests/integration/programs/recursion-simple.smir.json.expected b/tests/integration/programs/recursion-simple.smir.json.expected
index c548d35..ebc6d5f 100644
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-                        "args": [],
-                        "destination": {
-                          "local": 0,
-                          "projection": []
-                        },
-                        "func": {
-                          "Move": {
-                            "local": 1,
-                            "projection": []
-                          }
-                        },
-                        "target": 1,
-                        "unwind": "Continue"
-                      }
-                    },
-                    "span": 40
-                  }
-                },
-                {
-                  "statements": [],
-                  "terminator": {
-                    "kind": "Return",
-                    "span": 40
-                  }
-                }
-              ],
-              "locals": [
-                {
-                  "mutability": "Mut",
-                  "span": 40,
-                  "ty": 1
-                },
-                {
-                  "mutability": "Not",
-                  "span": 40,
-                  "ty": 7
-                },
-                {
-                  "mutability": "Not",
-                  "span": 40,
-                  "ty": 1
-                }
-              ],
-              "span": 40,
-              "spread_arg": 2,
-              "var_debug_info": []
-            }
-          ],
-          "id": 3,
-          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
-        }
-      },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
-    },
     {
       "details": null,
       "mono_item_kind": {
diff --git a/tests/integration/programs/slice.smir.json.expected b/tests/integration/programs/slice.smir.json.expected
index 8dddfc5..6f1b9bf 100644
--- a/tests/integration/programs/slice.smir.json.expected
+++ b/tests/integration/programs/slice.smir.json.expected
@@ -1936,6 +1936,73 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
+    {
+      "details": null,
+      "mono_item_kind": {
+        "MonoItemFn": {
+          "body": [
+            {
+              "arg_count": 2,
+              "blocks": [
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": {
+                      "Call": {
+                        "args": [],
+                        "destination": {
+                          "local": 0,
+                          "projection": []
+                        },
+                        "func": {
+                          "Move": {
+                            "local": 1,
+                            "projection": []
+                          }
+                        },
+                        "target": 1,
+                        "unwind": "Continue"
+                      }
+                    },
+                    "span": 81
+                  }
+                },
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": "Return",
+                    "span": 81
+                  }
+                }
+              ],
+              "locals": [
+                {
+                  "mutability": "Mut",
+                  "span": 81,
+                  "ty": 12
+                },
+                {
+                  "mutability": "Not",
+                  "span": 81,
+                  "ty": 18
+                },
+                {
+                  "mutability": "Not",
+                  "span": 81,
+                  "ty": 12
+                }
+              ],
+              "span": 81,
+              "spread_arg": 2,
+              "var_debug_info": []
+            }
+          ],
+          "id": 5,
+          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
+        }
+      },
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
+    },
     {
       "details": null,
       "mono_item_kind": {
@@ -2095,73 +2162,6 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
-    {
-      "details": null,
-      "mono_item_kind": {
-        "MonoItemFn": {
-          "body": [
-            {
-              "arg_count": 2,
-              "blocks": [
-                {
-                  "statements": [],
-                  "terminator": {
-                    "kind": {
-                      "Call": {
-                        "args": [],
-                        "destination": {
-                          "local": 0,
-                          "projection": []
-                        },
-                        "func": {
-                          "Move": {
-                            "local": 1,
-                            "projection": []
-                          }
-                        },
-                        "target": 1,
-                        "unwind": "Continue"
-                      }
-                    },
-                    "span": 81
-                  }
-                },
-                {
-                  "statements": [],
-                  "terminator": {
-                    "kind": "Return",
-                    "span": 81
-                  }
-                }
-              ],
-              "locals": [
-                {
-                  "mutability": "Mut",
-                  "span": 81,
-                  "ty": 12
-                },
-                {
-                  "mutability": "Not",
-                  "span": 81,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Not",
-                  "span": 81,
-                  "ty": 12
-                }
-              ],
-              "span": 81,
-              "spread_arg": 2,
-              "var_debug_info": []
-            }
-          ],
-          "id": 5,
-          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
-        }
-      },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
-    },
     {
       "details": null,
       "mono_item_kind": {
diff --git a/tests/integration/programs/strange-ref-deref.smir.json.expected b/tests/integration/programs/strange-ref-deref.smir.json.expected
index d8d139e..cb37763 100644
--- a/tests/integration/programs/strange-ref-deref.smir.json.expected
+++ b/tests/integration/programs/strange-ref-deref.smir.json.expected
@@ -1352,6 +1352,73 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
+    {
+      "details": null,
+      "mono_item_kind": {
+        "MonoItemFn": {
+          "body": [
+            {
+              "arg_count": 2,
+              "blocks": [
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": {
+                      "Call": {
+                        "args": [],
+                        "destination": {
+                          "local": 0,
+                          "projection": []
+                        },
+                        "func": {
+                          "Move": {
+                            "local": 1,
+                            "projection": []
+                          }
+                        },
+                        "target": 1,
+                        "unwind": "Continue"
+                      }
+                    },
+                    "span": 40
+                  }
+                },
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": "Return",
+                    "span": 40
+                  }
+                }
+              ],
+              "locals": [
+                {
+                  "mutability": "Mut",
+                  "span": 40,
+                  "ty": 1
+                },
+                {
+                  "mutability": "Not",
+                  "span": 40,
+                  "ty": 7
+                },
+                {
+                  "mutability": "Not",
+                  "span": 40,
+                  "ty": 1
+                }
+              ],
+              "span": 40,
+              "spread_arg": 2,
+              "var_debug_info": []
+            }
+          ],
+          "id": 3,
+          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
+        }
+      },
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
+    },
     {
       "details": null,
       "mono_item_kind": {
@@ -1511,73 +1578,6 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
-    {
-      "details": null,
-      "mono_item_kind": {
-        "MonoItemFn": {
-          "body": [
-            {
-              "arg_count": 2,
-              "blocks": [
-                {
-                  "statements": [],
-                  "terminator": {
-                    "kind": {
-                      "Call": {
-                        "args": [],
-                        "destination": {
-                          "local": 0,
-                          "projection": []
-                        },
-                        "func": {
-                          "Move": {
-                            "local": 1,
-                            "projection": []
-                          }
-                        },
-                        "target": 1,
-                        "unwind": "Continue"
-                      }
-                    },
-                    "span": 40
-                  }
-                },
-                {
-                  "statements": [],
-                  "terminator": {
-                    "kind": "Return",
-                    "span": 40
-                  }
-                }
-              ],
-              "locals": [
-                {
-                  "mutability": "Mut",
-                  "span": 40,
-                  "ty": 1
-                },
-                {
-                  "mutability": "Not",
-                  "span": 40,
-                  "ty": 7
-                },
-                {
-                  "mutability": "Not",
-                  "span": 40,
-                  "ty": 1
-                }
-              ],
-              "span": 40,
-              "spread_arg": 2,
-              "var_debug_info": []
-            }
-          ],
-          "id": 3,
-          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
-        }
-      },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
-    },
     {
       "details": null,
       "mono_item_kind": {
diff --git a/tests/integration/programs/sum-to-n.smir.json.expected b/tests/integration/programs/sum-to-n.smir.json.expected
index b9b0985..5b34262 100644
--- a/tests/integration/programs/sum-to-n.smir.json.expected
+++ b/tests/integration/programs/sum-to-n.smir.json.expected
@@ -1025,6 +1025,73 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
+    {
+      "details": null,
+      "mono_item_kind": {
+        "MonoItemFn": {
+          "body": [
+            {
+              "arg_count": 2,
+              "blocks": [
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": {
+                      "Call": {
+                        "args": [],
+                        "destination": {
+                          "local": 0,
+                          "projection": []
+                        },
+                        "func": {
+                          "Move": {
+                            "local": 1,
+                            "projection": []
+                          }
+                        },
+                        "target": 1,
+                        "unwind": "Continue"
+                      }
+                    },
+                    "span": 40
+                  }
+                },
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": "Return",
+                    "span": 40
+                  }
+                }
+              ],
+              "locals": [
+                {
+                  "mutability": "Mut",
+                  "span": 40,
+                  "ty": 1
+                },
+                {
+                  "mutability": "Not",
+                  "span": 40,
+                  "ty": 7
+                },
+                {
+                  "mutability": "Not",
+                  "span": 40,
+                  "ty": 1
+                }
+              ],
+              "span": 40,
+              "spread_arg": 2,
+              "var_debug_info": []
+            }
+          ],
+          "id": 3,
+          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
+        }
+      },
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
+    },
     {
       "details": null,
       "mono_item_kind": {
@@ -1184,73 +1251,6 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
-    {
-      "details": null,
-      "mono_item_kind": {
-        "MonoItemFn": {
-          "body": [
-            {
-              "arg_count": 2,
-              "blocks": [
-                {
-                  "statements": [],
-                  "terminator": {
-                    "kind": {
-                      "Call": {
-                        "args": [],
-                        "destination": {
-                          "local": 0,
-                          "projection": []
-                        },
-                        "func": {
-                          "Move": {
-                            "local": 1,
-                            "projection": []
-                          }
-                        },
-                        "target": 1,
-                        "unwind": "Continue"
-                      }
-                    },
-                    "span": 40
-                  }
-                },
-                {
-                  "statements": [],
-                  "terminator": {
-                    "kind": "Return",
-                    "span": 40
-                  }
-                }
-              ],
-              "locals": [
-                {
-                  "mutability": "Mut",
-                  "span": 40,
-                  "ty": 1
-                },
-                {
-                  "mutability": "Not",
-                  "span": 40,
-                  "ty": 7
-                },
-                {
-                  "mutability": "Not",
-                  "span": 40,
-                  "ty": 1
-                }
-              ],
-              "span": 40,
-              "spread_arg": 2,
-              "var_debug_info": []
-            }
-          ],
-          "id": 3,
-          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
-        }
-      },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
-    },
     {
       "details": null,
       "mono_item_kind": {

From 776fefc3d036e192ab1b14ff8de99a61d75976c7 Mon Sep 17 00:00:00 2001
From: Jost Berthold <jost.berthold@gmail.com>
Date: Thu, 16 Jan 2025 11:37:51 +1100
Subject: [PATCH 14/15] remove some commented code, add TODO comments for
 TyKind

---
 src/printer.rs | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/src/printer.rs b/src/printer.rs
index b4bf470..7fc6db1 100644
--- a/src/printer.rs
+++ b/src/printer.rs
@@ -11,11 +11,18 @@ extern crate stable_mir;
 extern crate serde;
 extern crate serde_json;
 use rustc_middle as middle;
-use rustc_middle::ty::{TyCtxt, Ty, TyKind, EarlyBinder, FnSig, GenericArgs, TypeFoldable, TypingEnv}; //, Binder, Generics, GenericPredicates
+use rustc_middle::ty::{TyCtxt, Ty, TyKind, EarlyBinder, FnSig, GenericArgs, TypeFoldable, TypingEnv};
 use rustc_session::config::{OutFileName, OutputType};
-use rustc_span::{def_id::{DefId, LOCAL_CRATE}, symbol}; // DUMMY_SP, symbol::sym::test;
+use rustc_span::{def_id::{DefId, LOCAL_CRATE}, symbol};
 use rustc_smir::rustc_internal;
-use stable_mir::{CrateItem,CrateDef,ItemKind,mir::{Body,LocalDecl,Terminator,TerminatorKind,Rvalue,visit::MirVisitor},ty::{Allocation,ForeignItemKind},mir::mono::{MonoItem,Instance,InstanceKind}}; // Symbol
+use stable_mir::{ 
+  CrateItem,
+  CrateDef,
+  ItemKind,
+  mir::{Body,LocalDecl,Terminator,TerminatorKind,Rvalue,visit::MirVisitor},
+  ty::{Allocation,ForeignItemKind},
+  mir::mono::{MonoItem,Instance,InstanceKind}
+};
 use serde::{Serialize, Serializer};
 
 // Structs for serializing extra details about mono items
@@ -366,7 +373,7 @@ pub enum AllocInfo {
     Function(stable_mir::mir::mono::Instance),
     VTable(stable_mir::ty::Ty, Option<stable_mir::ty::Binder<stable_mir::ty::ExistentialTraitRef>>),
     Static(stable_mir::mir::mono::StaticDef),
-    Memory(/* stable_mir::ty::TyKind, */ stable_mir::ty::Allocation),
+    Memory(stable_mir::ty::Allocation), // TODO include stable_mir::ty::TyKind?
 }
 type LinkMap<'tcx> = HashMap<LinkMapKey<'tcx>, (ItemSource, FnSymType)>;
 type AllocMap = HashMap<stable_mir::mir::alloc::AllocId, AllocInfo>;
@@ -427,7 +434,7 @@ fn collect_alloc(val_collector: &mut InternedValueCollector, kind: Option<stable
         GlobalAlloc::Memory(ref alloc) => {
             let pointed_kind = get_prov_type(kind);
             if debug_enabled() { println!("DEBUG: called collect_alloc: {:?}:{:?}:{:?}", val, pointed_kind, global_alloc); }
-            entry.or_insert(AllocInfo::Memory(alloc.clone())); // pointed_kind.clone().unwrap(), alloc.clone()));
+            entry.or_insert(AllocInfo::Memory(alloc.clone())); // TODO: include pointed_kind.clone().unwrap() ?
             alloc.provenance.ptrs.iter().for_each(|(_, prov)| {
                 collect_alloc(val_collector, pointed_kind.clone(), prov.0);
             });

From 31fbd24b6f2501a048004f0341adc032cdfc24e5 Mon Sep 17 00:00:00 2001
From: Jost Berthold <jost.berthold@gmail.com>
Date: Thu, 16 Jan 2025 11:43:08 +1100
Subject: [PATCH 15/15] update expectations for failing tests once more

---
 .../failing/array.smir.json.expected          |   447 +-
 .../failing/box.smir.json.expected            |  8799 ++---
 .../failing/defined-trait.smir.json.expected  | 27669 ----------------
 .../derive-copy-struct.smir.json.expected     |   674 +-
 .../failing/generic.smir.json.expected        |   907 +-
 .../failing/panic_example.smir.json.expected  | 12505 +------
 .../std-string-empty.smir.json.expected       |  7957 +----
 .../failing/std-to-string.smir.json.expected  | 27369 ---------------
 .../failing/str-empty.smir.json.expected      |  1329 +-
 .../failing/str-trivial.smir.json.expected    |  1431 +-
 10 files changed, 8437 insertions(+), 80650 deletions(-)

diff --git a/tests/integration/failing/array.smir.json.expected b/tests/integration/failing/array.smir.json.expected
index 0a4d0f3..4f82c5c 100644
--- a/tests/integration/failing/array.smir.json.expected
+++ b/tests/integration/failing/array.smir.json.expected
@@ -163,12 +163,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -253,7 +247,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -264,12 +258,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -329,7 +317,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -358,51 +346,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -416,7 +404,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -426,7 +414,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -435,7 +423,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -450,7 +438,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -465,7 +453,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -480,7 +468,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -495,7 +483,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -527,19 +515,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -566,7 +554,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -591,7 +579,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -599,7 +587,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -608,7 +596,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -633,7 +621,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -641,7 +629,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -650,13 +638,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -665,42 +653,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -724,7 +676,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -738,7 +690,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -747,37 +699,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -787,27 +733,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -820,7 +761,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -843,7 +784,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -851,21 +792,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 30
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 5,
-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -903,7 +829,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -917,9 +843,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -927,7 +853,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -943,7 +869,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -957,9 +883,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -967,35 +893,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 36
+                    "span": 33
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 37,
+                  "span": 34,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 38,
+                  "span": 35,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 39,
+                  "span": 36,
                   "ty": 1
                 }
               ],
-              "span": 42,
+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1004,7 +930,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -1019,7 +945,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -1034,7 +960,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -1043,7 +969,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1095,9 +1021,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1105,35 +1031,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 22
+                  "span": 40,
+                  "ty": 21
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1172,35 +1098,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1246,7 +1172,7 @@
                           }
                         ]
                       },
-                      "span": 43
+                      "span": 40
                     }
                   ],
                   "terminator": {
@@ -1275,9 +1201,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1287,7 +1213,7 @@
                         }
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1303,14 +1229,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1326,40 +1252,40 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 24
+                  "span": 40,
+                  "ty": 23
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1382,23 +1308,23 @@
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 44
+                    "span": 41
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 44,
+                  "span": 41,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 44,
-                  "ty": 22
+                  "span": 41,
+                  "ty": 21
                 }
               ],
-              "span": 44,
+              "span": 41,
               "spread_arg": null,
               "var_debug_info": []
             }
@@ -1445,9 +1371,9 @@
                             "const_": {
                               "id": 8,
                               "kind": "ZeroSized",
-                              "ty": 25
+                              "ty": 24
                             },
-                            "span": 45,
+                            "span": 42,
                             "user_ty": null
                           }
                         },
@@ -1455,35 +1381,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 46
+                    "span": 43
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 47
+                    "span": 44
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 48,
-                  "ty": 26
+                  "span": 45,
+                  "ty": 25
                 },
                 {
                   "mutability": "Not",
-                  "span": 49,
-                  "ty": 27
+                  "span": 46,
+                  "ty": 26
                 },
                 {
                   "mutability": "Not",
-                  "span": 50,
-                  "ty": 27
+                  "span": 47,
+                  "ty": 26
                 }
               ],
-              "span": 51,
+              "span": 48,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1492,7 +1418,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 0,
-                    "span": 49
+                    "span": 46
                   },
                   "value": {
                     "Place": {
@@ -1507,7 +1433,7 @@
                   "name": "other",
                   "source_info": {
                     "scope": 0,
-                    "span": 50
+                    "span": 47
                   },
                   "value": {
                     "Place": {
@@ -1561,58 +1487,37 @@
                                   },
                                   "ty": 17
                                 },
-                                "span": 53,
+                                "span": 50,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 53
+                      "span": 50
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 52
+                    "span": 49
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 54,
+                  "span": 51,
                   "ty": 17
                 },
                 {
                   "mutability": "Not",
-                  "span": 55,
+                  "span": 52,
                   "ty": 1
                 }
               ],
-              "span": 56,
+              "span": 53,
               "spread_arg": null,
-              "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 55
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 4,
-                        "kind": "ZeroSized",
-                        "ty": 1
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
           "id": 6,
@@ -1665,7 +1570,7 @@
                                       },
                                       "ty": 16
                                     },
-                                    "span": 67,
+                                    "span": 64,
                                     "user_ty": null
                                   }
                                 },
@@ -1690,7 +1595,7 @@
                                       },
                                       "ty": 16
                                     },
-                                    "span": 68,
+                                    "span": 65,
                                     "user_ty": null
                                   }
                                 },
@@ -1715,7 +1620,7 @@
                                       },
                                       "ty": 16
                                     },
-                                    "span": 69,
+                                    "span": 66,
                                     "user_ty": null
                                   }
                                 },
@@ -1740,7 +1645,7 @@
                                       },
                                       "ty": 16
                                     },
-                                    "span": 70,
+                                    "span": 67,
                                     "user_ty": null
                                   }
                                 }
@@ -1749,7 +1654,7 @@
                           }
                         ]
                       },
-                      "span": 71
+                      "span": 68
                     },
                     {
                       "kind": {
@@ -1772,7 +1677,7 @@
                           }
                         ]
                       },
-                      "span": 72
+                      "span": 69
                     },
                     {
                       "kind": {
@@ -1810,16 +1715,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 27
+                                  "ty": 26
                                 },
-                                "span": 73,
+                                "span": 70,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 73
+                      "span": 70
                     }
                   ],
                   "terminator": {
@@ -1848,9 +1753,9 @@
                             "const_": {
                               "id": 11,
                               "kind": "ZeroSized",
-                              "ty": 29
+                              "ty": 28
                             },
-                            "span": 66,
+                            "span": 63,
                             "user_ty": null
                           }
                         },
@@ -1858,7 +1763,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 66
+                    "span": 63
                   }
                 },
                 {
@@ -1883,14 +1788,14 @@
                         }
                       }
                     },
-                    "span": 66
+                    "span": 63
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 74
+                    "span": 71
                   }
                 },
                 {
@@ -1935,9 +1840,9 @@
                                     }
                                   }
                                 },
-                                "ty": 31
+                                "ty": 30
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1951,9 +1856,9 @@
                             "const_": {
                               "id": 17,
                               "kind": "ZeroSized",
-                              "ty": 30
+                              "ty": 29
                             },
-                            "span": 75,
+                            "span": 72,
                             "user_ty": null
                           }
                         },
@@ -1961,43 +1866,43 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 75
+                    "span": 72
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 76,
+                  "span": 73,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 77,
-                  "ty": 32
+                  "span": 74,
+                  "ty": 31
                 },
                 {
                   "mutability": "Mut",
-                  "span": 66,
-                  "ty": 26
+                  "span": 63,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 72,
-                  "ty": 27
+                  "span": 69,
+                  "ty": 26
                 },
                 {
                   "mutability": "Mut",
-                  "span": 73,
-                  "ty": 27
+                  "span": 70,
+                  "ty": 26
                 },
                 {
                   "mutability": "Mut",
-                  "span": 75,
-                  "ty": 33
+                  "span": 72,
+                  "ty": 32
                 }
               ],
-              "span": 78,
+              "span": 75,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -2006,7 +1911,7 @@
                   "name": "a",
                   "source_info": {
                     "scope": 1,
-                    "span": 77
+                    "span": 74
                   },
                   "value": {
                     "Place": {
@@ -2056,7 +1961,7 @@
                                       },
                                       "ty": 16
                                     },
-                                    "span": 79,
+                                    "span": 76,
                                     "user_ty": null
                                   }
                                 },
@@ -2081,7 +1986,7 @@
                                       },
                                       "ty": 16
                                     },
-                                    "span": 80,
+                                    "span": 77,
                                     "user_ty": null
                                   }
                                 },
@@ -2106,7 +2011,7 @@
                                       },
                                       "ty": 16
                                     },
-                                    "span": 81,
+                                    "span": 78,
                                     "user_ty": null
                                   }
                                 },
@@ -2131,7 +2036,7 @@
                                       },
                                       "ty": 16
                                     },
-                                    "span": 82,
+                                    "span": 79,
                                     "user_ty": null
                                   }
                                 }
@@ -2140,7 +2045,7 @@
                           }
                         ]
                       },
-                      "span": 73
+                      "span": 70
                     },
                     {
                       "kind": {
@@ -2163,28 +2068,28 @@
                           }
                         ]
                       },
-                      "span": 73
+                      "span": 70
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 73
+                    "span": 70
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 73,
-                  "ty": 27
+                  "span": 70,
+                  "ty": 26
                 },
                 {
                   "mutability": "Mut",
-                  "span": 73,
-                  "ty": 32
+                  "span": 70,
+                  "ty": 31
                 }
               ],
-              "span": 73,
+              "span": 70,
               "spread_arg": null,
               "var_debug_info": []
             }
@@ -2209,7 +2114,7 @@
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 59
+                      "span": 56
                     },
                     {
                       "kind": {
@@ -2227,12 +2132,12 @@
                                   "projection": []
                                 }
                               },
-                              27
+                              26
                             ]
                           }
                         ]
                       },
-                      "span": 59
+                      "span": 56
                     }
                   ],
                   "terminator": {
@@ -2261,9 +2166,9 @@
                             "const_": {
                               "id": 10,
                               "kind": "ZeroSized",
-                              "ty": 28
+                              "ty": 27
                             },
-                            "span": 57,
+                            "span": 54,
                             "user_ty": null
                           }
                         },
@@ -2271,7 +2176,7 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 58
+                    "span": 55
                   }
                 },
                 {
@@ -2280,38 +2185,38 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 61
+                      "span": 58
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 60
+                    "span": 57
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 62,
-                  "ty": 26
+                  "span": 59,
+                  "ty": 25
                 },
                 {
                   "mutability": "Not",
-                  "span": 63,
-                  "ty": 27
+                  "span": 60,
+                  "ty": 26
                 },
                 {
                   "mutability": "Not",
-                  "span": 64,
-                  "ty": 27
+                  "span": 61,
+                  "ty": 26
                 },
                 {
                   "mutability": "Mut",
-                  "span": 59,
-                  "ty": 27
+                  "span": 56,
+                  "ty": 26
                 }
               ],
-              "span": 65,
+              "span": 62,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -2320,7 +2225,7 @@
                   "name": "a",
                   "source_info": {
                     "scope": 0,
-                    "span": 63
+                    "span": 60
                   },
                   "value": {
                     "Place": {
@@ -2335,7 +2240,7 @@
                   "name": "b",
                   "source_info": {
                     "scope": 0,
-                    "span": 64
+                    "span": 61
                   },
                   "value": {
                     "Place": {
diff --git a/tests/integration/failing/box.smir.json.expected b/tests/integration/failing/box.smir.json.expected
index 7e1d9d3..ae74cb3 100644
--- a/tests/integration/failing/box.smir.json.expected
+++ b/tests/integration/failing/box.smir.json.expected
@@ -1,128 +1,5 @@
 {
   "allocs": [
-    [
-      {
-        "Memory": {
-          "align": 1,
-          "bytes": [
-            117,
-            110,
-            115,
-            97,
-            102,
-            101,
-            32,
-            112,
-            114,
-            101,
-            99,
-            111,
-            110,
-            100,
-            105,
-            116,
-            105,
-            111,
-            110,
-            40,
-            115,
-            41,
-            32,
-            118,
-            105,
-            111,
-            108,
-            97,
-            116,
-            101,
-            100,
-            58,
-            32,
-            112,
-            116,
-            114,
-            58,
-            58,
-            114,
-            101,
-            97,
-            100,
-            95,
-            118,
-            111,
-            108,
-            97,
-            116,
-            105,
-            108,
-            101,
-            32,
-            114,
-            101,
-            113,
-            117,
-            105,
-            114,
-            101,
-            115,
-            32,
-            116,
-            104,
-            97,
-            116,
-            32,
-            116,
-            104,
-            101,
-            32,
-            112,
-            111,
-            105,
-            110,
-            116,
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-            105,
-            103,
-            110,
-            101,
-            100,
-            32,
-            97,
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-            100,
-            32,
-            110,
-            111,
-            110,
-            45,
-            110,
-            117,
-            108,
-            108
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-          "mutability": "Not",
-          "provenance": {
-            "ptrs": []
-          }
-        }
-      }
-    ],
     [
       {
         "Memory": {
@@ -169,36 +46,19 @@
         }
       }
     ],
+    [
+      {
+        "Static": 56
+      }
+    ],
     [
       {
         "Memory": {
-          "align": 8,
-          "bytes": [
-            0,
-            0,
-            0,
-            0,
-            0,
-            0,
-            0,
-            0,
-            42,
-            0,
-            0,
-            0,
-            0,
-            0,
-            0,
-            0
-          ],
+          "align": 1,
+          "bytes": [],
           "mutability": "Not",
           "provenance": {
-            "ptrs": [
-              [
-                0,
-                17
-              ]
-            ]
+            "ptrs": []
           }
         }
       }
@@ -309,35 +169,6 @@
         }
       }
     ],
-    [
-      {
-        "Memory": {
-          "align": 1,
-          "bytes": [],
-          "mutability": "Not",
-          "provenance": {
-            "ptrs": []
-          }
-        }
-      }
-    ],
-    [
-      {
-        "Memory": {
-          "align": 1,
-          "bytes": [],
-          "mutability": "Not",
-          "provenance": {
-            "ptrs": []
-          }
-        }
-      }
-    ],
-    [
-      {
-        "Static": 92
-      }
-    ],
     [
       {
         "Memory": {
@@ -457,20 +288,86 @@
         "Memory": {
           "align": 1,
           "bytes": [
+            117,
+            110,
+            115,
+            97,
+            102,
+            101,
+            32,
+            112,
+            114,
+            101,
+            99,
+            111,
+            110,
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             105,
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             95,
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             108,
             105,
             103,
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             101,
             100,
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             116,
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             32,
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@@ -481,10 +378,6 @@
             105,
             115,
             32,
-            110,
-            111,
-            116,
-            32,
             97,
             32,
             112,
@@ -492,13 +385,196 @@
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             101,
             114,
-            45,
+            32,
             111,
             102,
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             116,
-            119,
-            111
+            105,
+            111,
+            110,
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+            115,
+            105,
+            122,
+            101,
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+            100,
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+            110,
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+            101,
+            100,
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+            115,
+            105,
+            122,
+            101,
+            58,
+            58,
+            77,
+            65,
+            88
+          ],
+          "mutability": "Not",
+          "provenance": {
+            "ptrs": []
+          }
+        }
+      }
+    ],
+    [
+      {
+        "Memory": {
+          "align": 1,
+          "bytes": [
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+            110,
+            115,
+            97,
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+            110,
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           ],
           "mutability": "Not",
           "provenance": {
@@ -601,12 +677,12 @@
     ],
     [
       {
-        "NormalSym": "_ZN4core9panicking14panic_nounwind17h"
+        "IntrinsicSym": "ctpop"
       }
     ],
     [
       {
-        "IntrinsicSym": "ctpop"
+        "NormalSym": "_ZN4core9panicking14panic_nounwind17h"
       }
     ],
     [
@@ -621,7 +697,22 @@
     ],
     [
       {
-        "NormalSym": "_ZN5alloc5alloc6Global10alloc_impl17h"
+        "NormalSym": "_ZN4core5alloc6layout6Layout19is_size_align_valid17h"
+      }
+    ],
+    [
+      {
+        "NormalSym": "__"
+      }
+    ],
+    [
+      {
+        "NormalSym": "_ZN4core3ptr13read_volatile18precondition_check17h"
+      }
+    ],
+    [
+      {
+        "IntrinsicSym": "volatile_load"
       }
     ],
     [
@@ -631,22 +722,22 @@
     ],
     [
       {
-        "NormalSym": ""
+        "NormalSym": "_ZN4core5alloc6layout6Layout25from_size_align_unchecked18precondition_check17h"
       }
     ],
     [
       {
-        "NormalSym": "_ZN4core3ptr13read_volatile18precondition_check17h"
+        "NormalSym": "_ZN5alloc5alloc6Global10alloc_impl17h"
       }
     ],
     [
       {
-        "IntrinsicSym": "volatile_load"
+        "NormalSym": ""
       }
     ],
     [
       {
-        "NormalSym": "__"
+        "NormalSym": "_ZN5alloc5alloc12alloc_zeroed17h"
       }
     ],
     [
@@ -706,7 +797,7 @@
     ],
     [
       {
-        "NormalSym": "_ZN4core3ptr49drop_in_place$LT$alloc..boxed..Box$LT$i32$GT$$GT$17h"
+        "NoOpSym": ""
       }
     ],
     [
@@ -716,7 +807,7 @@
     ],
     [
       {
-        "NoOpSym": ""
+        "NormalSym": "_ZN4core3ptr49drop_in_place$LT$alloc..boxed..Box$LT$i32$GT$$GT$17h"
       }
     ]
   ],
@@ -738,7 +829,7 @@
                           {
                             "Constant": {
                               "const_": {
-                                "id": 48,
+                                "id": 50,
                                 "kind": {
                                   "Allocated": {
                                     "align": 4,
@@ -756,7 +847,7 @@
                                 },
                                 "ty": 16
                               },
-                              "span": 368,
+                              "span": 376,
                               "user_ty": null
                             }
                           }
@@ -768,11 +859,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 47,
+                              "id": 49,
                               "kind": "ZeroSized",
-                              "ty": 87
+                              "ty": 90
                             },
-                            "span": 367,
+                            "span": 375,
                             "user_ty": 0
                           }
                         },
@@ -780,7 +871,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 369
+                    "span": 377
                   }
                 },
                 {
@@ -792,7 +883,7 @@
                           {
                             "Constant": {
                               "const_": {
-                                "id": 48,
+                                "id": 50,
                                 "kind": {
                                   "Allocated": {
                                     "align": 4,
@@ -810,7 +901,7 @@
                                 },
                                 "ty": 16
                               },
-                              "span": 371,
+                              "span": 379,
                               "user_ty": null
                             }
                           }
@@ -822,11 +913,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 47,
+                              "id": 49,
                               "kind": "ZeroSized",
-                              "ty": 87
+                              "ty": 90
                             },
-                            "span": 370,
+                            "span": 378,
                             "user_ty": 1
                           }
                         },
@@ -836,7 +927,7 @@
                         }
                       }
                     },
-                    "span": 372
+                    "span": 380
                   }
                 },
                 {
@@ -862,7 +953,7 @@
                           }
                         ]
                       },
-                      "span": 374
+                      "span": 382
                     },
                     {
                       "kind": {
@@ -885,7 +976,7 @@
                           }
                         ]
                       },
-                      "span": 375
+                      "span": 383
                     }
                   ],
                   "terminator": {
@@ -912,11 +1003,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 49,
+                              "id": 51,
                               "kind": "ZeroSized",
-                              "ty": 88
+                              "ty": 91
                             },
-                            "span": 373,
+                            "span": 381,
                             "user_ty": null
                           }
                         },
@@ -926,7 +1017,7 @@
                         }
                       }
                     },
-                    "span": 373
+                    "span": 381
                   }
                 },
                 {
@@ -951,7 +1042,7 @@
                         }
                       }
                     },
-                    "span": 373
+                    "span": 381
                   }
                 },
                 {
@@ -971,19 +1062,19 @@
                                   {
                                     "Field": [
                                       0,
-                                      42
+                                      40
                                     ]
                                   },
                                   {
                                     "Field": [
                                       0,
-                                      43
+                                      41
                                     ]
                                   },
                                   {
                                     "Field": [
                                       0,
-                                      44
+                                      42
                                     ]
                                   }
                                 ]
@@ -992,7 +1083,7 @@
                           }
                         ]
                       },
-                      "span": 376
+                      "span": 384
                     },
                     {
                       "kind": {
@@ -1010,12 +1101,12 @@
                                   "projection": []
                                 }
                               },
-                              38
+                              36
                             ]
                           }
                         ]
                       },
-                      "span": 376
+                      "span": 384
                     },
                     {
                       "kind": {
@@ -1033,12 +1124,12 @@
                                   "projection": []
                                 }
                               },
-                              28
+                              29
                             ]
                           }
                         ]
                       },
-                      "span": 376
+                      "span": 384
                     },
                     {
                       "kind": {
@@ -1055,7 +1146,7 @@
                           }
                         ]
                       },
-                      "span": 376
+                      "span": 384
                     },
                     {
                       "kind": {
@@ -1076,7 +1167,7 @@
                               {
                                 "Constant": {
                                   "const_": {
-                                    "id": 11,
+                                    "id": 12,
                                     "kind": {
                                       "Allocated": {
                                         "align": 8,
@@ -1096,9 +1187,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 28
+                                    "ty": 29
                                   },
-                                  "span": 376,
+                                  "span": 384,
                                   "user_ty": null
                                 }
                               }
@@ -1106,7 +1197,7 @@
                           }
                         ]
                       },
-                      "span": 376
+                      "span": 384
                     },
                     {
                       "kind": {
@@ -1134,7 +1225,7 @@
                           }
                         ]
                       },
-                      "span": 376
+                      "span": 384
                     },
                     {
                       "kind": {
@@ -1155,7 +1246,7 @@
                               {
                                 "Constant": {
                                   "const_": {
-                                    "id": 12,
+                                    "id": 11,
                                     "kind": {
                                       "Allocated": {
                                         "align": 8,
@@ -1175,9 +1266,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 28
+                                    "ty": 29
                                   },
-                                  "span": 376,
+                                  "span": 384,
                                   "user_ty": null
                                 }
                               }
@@ -1185,7 +1276,7 @@
                           }
                         ]
                       },
-                      "span": 376
+                      "span": 384
                     }
                   ],
                   "terminator": {
@@ -1218,7 +1309,7 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 376
+                    "span": 384
                   }
                 },
                 {
@@ -1230,7 +1321,7 @@
                           {
                             "Constant": {
                               "const_": {
-                                "id": 51,
+                                "id": 53,
                                 "kind": {
                                   "Allocated": {
                                     "align": 8,
@@ -1257,15 +1348,15 @@
                                       "ptrs": [
                                         [
                                           0,
-                                          8
+                                          7
                                         ]
                                       ]
                                     }
                                   }
                                 },
-                                "ty": 30
+                                "ty": 28
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1277,11 +1368,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 50,
+                              "id": 52,
                               "kind": "ZeroSized",
-                              "ty": 89
+                              "ty": 92
                             },
-                            "span": 377,
+                            "span": 385,
                             "user_ty": null
                           }
                         },
@@ -1291,7 +1382,7 @@
                         }
                       }
                     },
-                    "span": 377
+                    "span": 385
                   }
                 },
                 {
@@ -1311,19 +1402,19 @@
                                   {
                                     "Field": [
                                       0,
-                                      42
+                                      40
                                     ]
                                   },
                                   {
                                     "Field": [
                                       0,
-                                      43
+                                      41
                                     ]
                                   },
                                   {
                                     "Field": [
                                       0,
-                                      44
+                                      42
                                     ]
                                   }
                                 ]
@@ -1332,7 +1423,7 @@
                           }
                         ]
                       },
-                      "span": 378
+                      "span": 386
                     },
                     {
                       "kind": {
@@ -1350,12 +1441,12 @@
                                   "projection": []
                                 }
                               },
-                              38
+                              36
                             ]
                           }
                         ]
                       },
-                      "span": 378
+                      "span": 386
                     },
                     {
                       "kind": {
@@ -1373,12 +1464,12 @@
                                   "projection": []
                                 }
                               },
-                              28
+                              29
                             ]
                           }
                         ]
                       },
-                      "span": 378
+                      "span": 386
                     },
                     {
                       "kind": {
@@ -1395,7 +1486,7 @@
                           }
                         ]
                       },
-                      "span": 378
+                      "span": 386
                     },
                     {
                       "kind": {
@@ -1416,7 +1507,7 @@
                               {
                                 "Constant": {
                                   "const_": {
-                                    "id": 11,
+                                    "id": 12,
                                     "kind": {
                                       "Allocated": {
                                         "align": 8,
@@ -1436,9 +1527,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 28
+                                    "ty": 29
                                   },
-                                  "span": 378,
+                                  "span": 386,
                                   "user_ty": null
                                 }
                               }
@@ -1446,7 +1537,7 @@
                           }
                         ]
                       },
-                      "span": 378
+                      "span": 386
                     },
                     {
                       "kind": {
@@ -1474,7 +1565,7 @@
                           }
                         ]
                       },
-                      "span": 378
+                      "span": 386
                     },
                     {
                       "kind": {
@@ -1495,7 +1586,7 @@
                               {
                                 "Constant": {
                                   "const_": {
-                                    "id": 12,
+                                    "id": 11,
                                     "kind": {
                                       "Allocated": {
                                         "align": 8,
@@ -1515,9 +1606,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 28
+                                    "ty": 29
                                   },
-                                  "span": 378,
+                                  "span": 386,
                                   "user_ty": null
                                 }
                               }
@@ -1525,7 +1616,7 @@
                           }
                         ]
                       },
-                      "span": 378
+                      "span": 386
                     }
                   ],
                   "terminator": {
@@ -1558,7 +1649,7 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 378
+                    "span": 386
                   }
                 },
                 {
@@ -1570,7 +1661,7 @@
                           {
                             "Constant": {
                               "const_": {
-                                "id": 52,
+                                "id": 54,
                                 "kind": {
                                   "Allocated": {
                                     "align": 8,
@@ -1597,15 +1688,15 @@
                                       "ptrs": [
                                         [
                                           0,
-                                          9
+                                          8
                                         ]
                                       ]
                                     }
                                   }
                                 },
-                                "ty": 30
+                                "ty": 28
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1617,11 +1708,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 50,
+                              "id": 52,
                               "kind": "ZeroSized",
-                              "ty": 89
+                              "ty": 92
                             },
-                            "span": 379,
+                            "span": 387,
                             "user_ty": null
                           }
                         },
@@ -1631,7 +1722,7 @@
                         }
                       }
                     },
-                    "span": 379
+                    "span": 387
                   }
                 },
                 {
@@ -1649,7 +1740,7 @@
                         }
                       }
                     },
-                    "span": 380
+                    "span": 388
                   }
                 },
                 {
@@ -1661,7 +1752,7 @@
                           {
                             "Constant": {
                               "const_": {
-                                "id": 53,
+                                "id": 55,
                                 "kind": {
                                   "Allocated": {
                                     "align": 8,
@@ -1688,15 +1779,15 @@
                                       "ptrs": [
                                         [
                                           0,
-                                          10
+                                          9
                                         ]
                                       ]
                                     }
                                   }
                                 },
-                                "ty": 30
+                                "ty": 28
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1708,11 +1799,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 50,
+                              "id": 52,
                               "kind": "ZeroSized",
-                              "ty": 89
+                              "ty": 92
                             },
-                            "span": 381,
+                            "span": 389,
                             "user_ty": null
                           }
                         },
@@ -1722,7 +1813,7 @@
                         }
                       }
                     },
-                    "span": 381
+                    "span": 389
                   }
                 },
                 {
@@ -1738,14 +1829,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 380
+                    "span": 388
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 382
+                    "span": 390
                   }
                 },
                 {
@@ -1761,7 +1852,7 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 380
+                    "span": 388
                   }
                 },
                 {
@@ -1777,14 +1868,14 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 380
+                    "span": 388
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 383
+                    "span": 391
                   }
                 },
                 {
@@ -1808,7 +1899,7 @@
                           }
                         ]
                       },
-                      "span": 378
+                      "span": 386
                     }
                   ],
                   "terminator": {
@@ -1831,7 +1922,7 @@
                         }
                       }
                     },
-                    "span": 384
+                    "span": 392
                   }
                 },
                 {
@@ -1855,7 +1946,7 @@
                           }
                         ]
                       },
-                      "span": 386
+                      "span": 394
                     },
                     {
                       "kind": {
@@ -1883,7 +1974,7 @@
                           }
                         ]
                       },
-                      "span": 385
+                      "span": 393
                     }
                   ],
                   "terminator": {
@@ -1906,7 +1997,7 @@
                         }
                       }
                     },
-                    "span": 385
+                    "span": 393
                   }
                 },
                 {
@@ -1930,7 +2021,7 @@
                           }
                         ]
                       },
-                      "span": 376
+                      "span": 384
                     },
                     {
                       "kind": {
@@ -1947,19 +2038,19 @@
                                   {
                                     "Field": [
                                       0,
-                                      42
+                                      40
                                     ]
                                   },
                                   {
                                     "Field": [
                                       0,
-                                      43
+                                      41
                                     ]
                                   },
                                   {
                                     "Field": [
                                       0,
-                                      44
+                                      42
                                     ]
                                   }
                                 ]
@@ -1968,7 +2059,7 @@
                           }
                         ]
                       },
-                      "span": 386
+                      "span": 394
                     },
                     {
                       "kind": {
@@ -1986,12 +2077,12 @@
                                   "projection": []
                                 }
                               },
-                              38
+                              36
                             ]
                           }
                         ]
                       },
-                      "span": 386
+                      "span": 394
                     },
                     {
                       "kind": {
@@ -2009,12 +2100,12 @@
                                   "projection": []
                                 }
                               },
-                              28
+                              29
                             ]
                           }
                         ]
                       },
-                      "span": 386
+                      "span": 394
                     },
                     {
                       "kind": {
@@ -2031,7 +2122,7 @@
                           }
                         ]
                       },
-                      "span": 386
+                      "span": 394
                     },
                     {
                       "kind": {
@@ -2052,7 +2143,7 @@
                               {
                                 "Constant": {
                                   "const_": {
-                                    "id": 11,
+                                    "id": 12,
                                     "kind": {
                                       "Allocated": {
                                         "align": 8,
@@ -2072,9 +2163,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 28
+                                    "ty": 29
                                   },
-                                  "span": 386,
+                                  "span": 394,
                                   "user_ty": null
                                 }
                               }
@@ -2082,7 +2173,7 @@
                           }
                         ]
                       },
-                      "span": 386
+                      "span": 394
                     },
                     {
                       "kind": {
@@ -2110,7 +2201,7 @@
                           }
                         ]
                       },
-                      "span": 386
+                      "span": 394
                     },
                     {
                       "kind": {
@@ -2131,7 +2222,7 @@
                               {
                                 "Constant": {
                                   "const_": {
-                                    "id": 12,
+                                    "id": 11,
                                     "kind": {
                                       "Allocated": {
                                         "align": 8,
@@ -2151,9 +2242,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 28
+                                    "ty": 29
                                   },
-                                  "span": 386,
+                                  "span": 394,
                                   "user_ty": null
                                 }
                               }
@@ -2161,7 +2252,7 @@
                           }
                         ]
                       },
-                      "span": 386
+                      "span": 394
                     }
                   ],
                   "terminator": {
@@ -2194,183 +2285,183 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 386
+                    "span": 394
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
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+                  "span": 395,
                   "ty": 1
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                 {
                   "mutability": "Not",
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                 {
                   "mutability": "Not",
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                 {
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                 {
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                 {
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                 {
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                 {
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                 },
                 {
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                 {
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                 {
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                 {
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@@ -2379,7 +2470,7 @@
                   "name": "a",
                   "source_info": {
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@@ -2394,7 +2485,7 @@
                   "name": "b",
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@@ -2434,12 +2525,6 @@
                       },
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                       "kind": {
                         "StorageLive": 8
@@ -2524,7 +2609,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
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                                   "projection": []
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@@ -2535,12 +2620,6 @@
                         ]
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                       "span": 2
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@@ -2600,7 +2679,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
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                       "kind": {
@@ -2629,51 +2708,51 @@
                           }
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                         "StorageDead": 8
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               "locals": [
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@@ -2687,7 +2766,7 @@
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                 },
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-                  "mutability": "Mut",
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@@ -2697,7 +2776,7 @@
                   "ty": 12
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                 {
@@ -2706,7 +2785,7 @@
                   "name": "main",
                   "source_info": {
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@@ -2721,7 +2800,7 @@
                   "name": "argc",
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@@ -2736,7 +2815,7 @@
                   "name": "argv",
                   "source_info": {
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@@ -2751,7 +2830,7 @@
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@@ -2766,7 +2845,7 @@
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@@ -2798,19 +2877,19 @@
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@@ -2837,7 +2916,7 @@
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@@ -2862,7 +2941,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
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                             "user_ty": null
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@@ -2870,7 +2949,7 @@
                         "unwind": "Continue"
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@@ -2879,7 +2958,7 @@
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@@ -2904,7 +2983,7 @@
                               "kind": "ZeroSized",
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@@ -2912,7 +2991,7 @@
                         "unwind": "Continue"
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@@ -2921,13 +3000,13 @@
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@@ -2936,42 +3015,6 @@
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-                                "kind": "ReErased"
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                           {
                             "Use": {
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@@ -2995,7 +3038,7 @@
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                       "kind": {
@@ -3009,7 +3052,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
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                                   "projection": []
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@@ -3018,37 +3061,31 @@
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-                    {
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@@ -3058,27 +3095,22 @@
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@@ -3091,7 +3123,7 @@
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@@ -3114,7 +3146,7 @@
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@@ -3122,21 +3154,6 @@
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@@ -3174,7 +3191,7 @@
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                               },
-                              "span": 32,
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                               "user_ty": null
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@@ -3188,9 +3205,9 @@
                             "const_": {
                               "id": 3,
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@@ -3198,7 +3215,7 @@
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@@ -3214,7 +3231,7 @@
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                                 "ty": 1
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-                              "span": 32,
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@@ -3228,9 +3245,9 @@
                             "const_": {
                               "id": 5,
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                             },
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@@ -3238,35 +3255,35 @@
                         "unwind": "Unreachable"
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@@ -3275,7 +3292,7 @@
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@@ -3290,7 +3307,7 @@
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@@ -3305,7 +3322,7 @@
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@@ -3314,7 +3331,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
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                       "user_ty": null
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@@ -3328,28 +3345,6 @@
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       "symbol_name": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
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@@ -3364,7 +3359,7 @@
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@@ -3385,13 +3380,13 @@
                           }
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@@ -3412,7 +3407,7 @@
                           }
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@@ -3440,55 +3435,55 @@
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-                  "span": 50,
-                  "ty": 22
+                  "span": 47,
+                  "ty": 21
                 },
                 {
                   "mutability": "Mut",
-                  "span": 44,
+                  "span": 41,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 45,
+                  "span": 42,
                   "ty": 16
                 }
               ],
-              "span": 51,
+              "span": 48,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -3497,7 +3492,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 0,
-                    "span": 49
+                    "span": 46
                   },
                   "value": {
                     "Place": {
@@ -3512,7 +3507,7 @@
                   "name": "other",
                   "source_info": {
                     "scope": 0,
-                    "span": 50
+                    "span": 47
                   },
                   "value": {
                     "Place": {
@@ -3524,7 +3519,7 @@
               ]
             }
           ],
-          "id": 5,
+          "id": 3,
           "name": "std::cmp::impls::<impl std::cmp::PartialEq for i32>::eq"
         }
       },
@@ -3568,9 +3563,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 52,
+                            "span": 49,
                             "user_ty": null
                           }
                         },
@@ -3578,40 +3573,40 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 52
+                    "span": 49
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 52
+                    "span": 49
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 52,
+                  "span": 49,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 52,
-                  "ty": 24
+                  "span": 49,
+                  "ty": 23
                 },
                 {
                   "mutability": "Not",
-                  "span": 52,
+                  "span": 49,
                   "ty": 1
                 }
               ],
-              "span": 52,
+              "span": 49,
               "spread_arg": 2,
               "var_debug_info": []
             }
           ],
-          "id": 6,
+          "id": 4,
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
@@ -3645,40 +3640,40 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 52
+                    "span": 49
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 52
+                    "span": 49
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 52,
+                  "span": 49,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 52,
+                  "span": 49,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 52,
+                  "span": 49,
                   "ty": 1
                 }
               ],
-              "span": 52,
+              "span": 49,
               "spread_arg": 2,
               "var_debug_info": []
             }
           ],
-          "id": 6,
+          "id": 4,
           "name": "<fn() as std::ops::FnOnce<()>>::call_once"
         }
       },
@@ -3719,7 +3714,7 @@
                           }
                         ]
                       },
-                      "span": 52
+                      "span": 49
                     }
                   ],
                   "terminator": {
@@ -3748,9 +3743,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 25
+                              "ty": 24
                             },
-                            "span": 52,
+                            "span": 49,
                             "user_ty": null
                           }
                         },
@@ -3760,7 +3755,7 @@
                         }
                       }
                     },
-                    "span": 52
+                    "span": 49
                   }
                 },
                 {
@@ -3776,14 +3771,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 52
+                    "span": 49
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 52
+                    "span": 49
                   }
                 },
                 {
@@ -3799,45 +3794,45 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 52
+                    "span": 49
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 52
+                    "span": 49
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 52,
+                  "span": 49,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 52,
+                  "span": 49,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 52,
+                  "span": 49,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 52,
-                  "ty": 26
+                  "span": 49,
+                  "ty": 25
                 }
               ],
-              "span": 52,
+              "span": 49,
               "spread_arg": 2,
               "var_debug_info": []
             }
           ],
-          "id": 6,
+          "id": 4,
           "name": "<{closure@std::rt::lang_start<()>::{closure#0}} as std::ops::FnOnce<()>>::call_once"
         }
       },
@@ -3849,116 +3844,74 @@
         "MonoItemFn": {
           "body": [
             {
-              "arg_count": 2,
+              "arg_count": 3,
               "blocks": [
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageLive": 3
-                      },
-                      "span": 54
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 54
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 5
-                      },
-                      "span": 55
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 5,
-                            "projection": []
-                          },
-                          {
-                            "Cast": [
-                              "PtrToPtr",
-                              {
-                                "Copy": {
-                                  "local": 1,
-                                  "projection": []
-                                }
-                              },
-                              27
-                            ]
-                          }
-                        ]
+                        "StorageLive": 4
                       },
-                      "span": 56
+                      "span": 52
                     },
                     {
                       "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
-                          {
-                            "Cast": [
-                              "Transmute",
-                              {
-                                "Copy": {
-                                  "local": 1,
-                                  "projection": []
-                                }
-                              },
-                              28
-                            ]
-                          }
-                        ]
+                        "StorageLive": 10
                       },
-                      "span": 57
+                      "span": 53
                     },
                     {
                       "kind": {
-                        "StorageDead": 5
+                        "StorageLive": 12
                       },
-                      "span": 55
+                      "span": 54
                     }
                   ],
                   "terminator": {
                     "kind": {
-                      "SwitchInt": {
-                        "discr": {
-                          "Move": {
-                            "local": 6,
-                            "projection": []
+                      "Call": {
+                        "args": [
+                          {
+                            "Copy": {
+                              "local": 2,
+                              "projection": []
+                            }
                           }
+                        ],
+                        "destination": {
+                          "local": 12,
+                          "projection": []
                         },
-                        "targets": {
-                          "branches": [
-                            [
-                              0,
-                              3
-                            ]
-                          ],
-                          "otherwise": 4
-                        }
+                        "func": {
+                          "Constant": {
+                            "const_": {
+                              "id": 8,
+                              "kind": "ZeroSized",
+                              "ty": 26
+                            },
+                            "span": 50,
+                            "user_ty": null
+                          }
+                        },
+                        "target": 9,
+                        "unwind": "Unreachable"
                       }
                     },
-                    "span": 53
+                    "span": 51
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageDead": 3
+                        "StorageDead": 4
                       },
-                      "span": 59
+                      "span": 56
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 58
+                    "span": 55
                   }
                 },
                 {
@@ -3970,7 +3923,7 @@
                           {
                             "Constant": {
                               "const_": {
-                                "id": 9,
+                                "id": 10,
                                 "kind": {
                                   "Allocated": {
                                     "align": 8,
@@ -4003,25 +3956,25 @@
                                     }
                                   }
                                 },
-                                "ty": 30
+                                "ty": 28
                               },
-                              "span": 61,
+                              "span": 58,
                               "user_ty": null
                             }
                           }
                         ],
                         "destination": {
-                          "local": 4,
+                          "local": 5,
                           "projection": []
                         },
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 8,
+                              "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 29
+                              "ty": 27
                             },
-                            "span": 60,
+                            "span": 57,
                             "user_ty": null
                           }
                         },
@@ -4029,102 +3982,104 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 62
+                    "span": 59
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageDead": 6
+                        "StorageDead": 9
                       },
-                      "span": 54
+                      "span": 61
                     }
                   ],
                   "terminator": {
                     "kind": {
-                      "Goto": {
-                        "target": 2
+                      "SwitchInt": {
+                        "discr": {
+                          "Copy": {
+                            "local": 3,
+                            "projection": []
+                          }
+                        },
+                        "targets": {
+                          "branches": [
+                            [
+                              0,
+                              6
+                            ]
+                          ],
+                          "otherwise": 5
+                        }
                       }
                     },
-                    "span": 54
+                    "span": 60
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageLive": 9
+                        "StorageDead": 9
                       },
-                      "span": 65
+                      "span": 61
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 10
+                      },
+                      "span": 53
                     }
                   ],
                   "terminator": {
                     "kind": {
-                      "Call": {
-                        "args": [
-                          {
-                            "Copy": {
-                              "local": 2,
-                              "projection": []
-                            }
-                          }
-                        ],
-                        "destination": {
-                          "local": 9,
-                          "projection": []
-                        },
-                        "func": {
-                          "Constant": {
-                            "const_": {
-                              "id": 10,
-                              "kind": "ZeroSized",
-                              "ty": 31
-                            },
-                            "span": 63,
-                            "user_ty": null
-                          }
-                        },
-                        "target": 7,
-                        "unwind": "Unreachable"
+                      "Goto": {
+                        "target": 2
                       }
                     },
-                    "span": 64
+                    "span": 52
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageDead": 9
-                      },
-                      "span": 66
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 12
+                        "StorageDead": 10
                       },
-                      "span": 67
+                      "span": 53
+                    }
+                  ],
+                  "terminator": {
+                    "kind": {
+                      "Goto": {
+                        "target": 1
+                      }
                     },
+                    "span": 52
+                  }
+                },
+                {
+                  "statements": [
                     {
                       "kind": {
-                        "StorageLive": 13
+                        "StorageLive": 6
                       },
-                      "span": 68
+                      "span": 62
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 13,
+                            "local": 6,
                             "projection": []
                           },
                           {
                             "BinaryOp": [
-                              "Sub",
+                              "Eq",
                               {
                                 "Copy": {
-                                  "local": 2,
+                                  "local": 10,
                                   "projection": []
                                 }
                               },
@@ -4136,7 +4091,7 @@
                                       "Allocated": {
                                         "align": 8,
                                         "bytes": [
-                                          1,
+                                          0,
                                           0,
                                           0,
                                           0,
@@ -4151,9 +4106,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 28
+                                    "ty": 29
                                   },
-                                  "span": 69,
+                                  "span": 63,
                                   "user_ty": null
                                 }
                               }
@@ -4161,27 +4116,21 @@
                           }
                         ]
                       },
-                      "span": 68
+                      "span": 64
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 12,
+                            "local": 4,
                             "projection": []
                           },
                           {
-                            "BinaryOp": [
-                              "BitAnd",
-                              {
-                                "Copy": {
-                                  "local": 6,
-                                  "projection": []
-                                }
-                              },
+                            "UnaryOp": [
+                              "Not",
                               {
                                 "Move": {
-                                  "local": 13,
+                                  "local": 6,
                                   "projection": []
                                 }
                               }
@@ -4189,28 +4138,101 @@
                           }
                         ]
                       },
-                      "span": 67
+                      "span": 65
                     },
                     {
                       "kind": {
-                        "StorageDead": 13
+                        "StorageDead": 6
                       },
-                      "span": 70
+                      "span": 66
                     },
                     {
                       "kind": {
-                        "Assign": [
-                          {
-                            "local": 3,
+                        "StorageDead": 10
+                      },
+                      "span": 53
+                    }
+                  ],
+                  "terminator": {
+                    "kind": {
+                      "SwitchInt": {
+                        "discr": {
+                          "Move": {
+                            "local": 4,
                             "projection": []
-                          },
-                          {
-                            "BinaryOp": [
-                              "Eq",
-                              {
-                                "Move": {
-                                  "local": 12,
-                                  "projection": []
+                          }
+                        },
+                        "targets": {
+                          "branches": [
+                            [
+                              0,
+                              2
+                            ]
+                          ],
+                          "otherwise": 1
+                        }
+                      }
+                    },
+                    "span": 52
+                  }
+                },
+                {
+                  "statements": [
+                    {
+                      "kind": {
+                        "StorageDead": 12
+                      },
+                      "span": 67
+                    },
+                    {
+                      "kind": {
+                        "StorageLive": 9
+                      },
+                      "span": 68
+                    },
+                    {
+                      "kind": {
+                        "Assign": [
+                          {
+                            "local": 10,
+                            "projection": []
+                          },
+                          {
+                            "Cast": [
+                              "Transmute",
+                              {
+                                "Copy": {
+                                  "local": 1,
+                                  "projection": []
+                                }
+                              },
+                              29
+                            ]
+                          }
+                        ]
+                      },
+                      "span": 69
+                    },
+                    {
+                      "kind": {
+                        "StorageLive": 11
+                      },
+                      "span": 70
+                    },
+                    {
+                      "kind": {
+                        "Assign": [
+                          {
+                            "local": 11,
+                            "projection": []
+                          },
+                          {
+                            "BinaryOp": [
+                              "Sub",
+                              {
+                                "Copy": {
+                                  "local": 2,
+                                  "projection": []
                                 }
                               },
                               {
@@ -4221,7 +4243,7 @@
                                       "Allocated": {
                                         "align": 8,
                                         "bytes": [
-                                          0,
+                                          1,
                                           0,
                                           0,
                                           0,
@@ -4236,7 +4258,7 @@
                                         }
                                       }
                                     },
-                                    "ty": 28
+                                    "ty": 29
                                   },
                                   "span": 71,
                                   "user_ty": null
@@ -4246,19 +4268,41 @@
                           }
                         ]
                       },
-                      "span": 72
+                      "span": 70
                     },
                     {
                       "kind": {
-                        "StorageDead": 12
+                        "Assign": [
+                          {
+                            "local": 9,
+                            "projection": []
+                          },
+                          {
+                            "BinaryOp": [
+                              "BitAnd",
+                              {
+                                "Copy": {
+                                  "local": 10,
+                                  "projection": []
+                                }
+                              },
+                              {
+                                "Move": {
+                                  "local": 11,
+                                  "projection": []
+                                }
+                              }
+                            ]
+                          }
+                        ]
                       },
-                      "span": 71
+                      "span": 68
                     },
                     {
                       "kind": {
-                        "StorageDead": 6
+                        "StorageDead": 11
                       },
-                      "span": 54
+                      "span": 72
                     }
                   ],
                   "terminator": {
@@ -4266,7 +4310,7 @@
                       "SwitchInt": {
                         "discr": {
                           "Move": {
-                            "local": 3,
+                            "local": 9,
                             "projection": []
                           }
                         },
@@ -4274,23 +4318,23 @@
                           "branches": [
                             [
                               0,
-                              2
+                              3
                             ]
                           ],
-                          "otherwise": 1
+                          "otherwise": 4
                         }
                       }
                     },
-                    "span": 54
+                    "span": 61
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageDead": 9
+                        "StorageDead": 12
                       },
-                      "span": 66
+                      "span": 67
                     },
                     {
                       "kind": {
@@ -4300,7 +4344,7 @@
                     },
                     {
                       "kind": {
-                        "StorageLive": 10
+                        "StorageLive": 13
                       },
                       "span": 76
                     },
@@ -4308,7 +4352,7 @@
                       "kind": {
                         "Assign": [
                           {
-                            "local": 10,
+                            "local": 13,
                             "projection": []
                           },
                           {
@@ -4344,13 +4388,13 @@
                                         }
                                       }
                                     },
-                                    "ty": 33
+                                    "ty": 31
                                   },
-                                  "span": 32,
+                                  "span": 77,
                                   "user_ty": null
                                 }
                               },
-                              34
+                              32
                             ]
                           }
                         ]
@@ -4359,15 +4403,15 @@
                     },
                     {
                       "kind": {
-                        "StorageLive": 11
+                        "StorageLive": 14
                       },
-                      "span": 77
+                      "span": 78
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 11,
+                            "local": 14,
                             "projection": []
                           },
                           {
@@ -4403,18 +4447,18 @@
                                         }
                                       }
                                     },
-                                    "ty": 35
+                                    "ty": 33
                                   },
-                                  "span": 32,
+                                  "span": 78,
                                   "user_ty": null
                                 }
                               },
-                              36
+                              34
                             ]
                           }
                         ]
                       },
-                      "span": 77
+                      "span": 78
                     },
                     {
                       "kind": {
@@ -4427,7 +4471,7 @@
                             "Aggregate": [
                               {
                                 "Adt": [
-                                  8,
+                                  6,
                                   0,
                                   [
                                     {
@@ -4443,7 +4487,7 @@
                               [
                                 {
                                   "Move": {
-                                    "local": 10,
+                                    "local": 13,
                                     "projection": []
                                   }
                                 },
@@ -4478,15 +4522,15 @@
                                           }
                                         }
                                       },
-                                      "ty": 37
+                                      "ty": 35
                                     },
-                                    "span": 32,
+                                    "span": 29,
                                     "user_ty": null
                                   }
                                 },
                                 {
                                   "Move": {
-                                    "local": 11,
+                                    "local": 14,
                                     "projection": []
                                   }
                                 }
@@ -4495,19 +4539,19 @@
                           }
                         ]
                       },
-                      "span": 78
+                      "span": 79
                     },
                     {
                       "kind": {
-                        "StorageDead": 11
+                        "StorageDead": 14
                       },
-                      "span": 79
+                      "span": 80
                     },
                     {
                       "kind": {
-                        "StorageDead": 10
+                        "StorageDead": 13
                       },
-                      "span": 79
+                      "span": 80
                     }
                   ],
                   "terminator": {
@@ -4530,7 +4574,7 @@
                             "const_": {
                               "id": 13,
                               "kind": "ZeroSized",
-                              "ty": 32
+                              "ty": 30
                             },
                             "span": 73,
                             "user_ty": null
@@ -4550,7 +4594,7 @@
                       "SwitchInt": {
                         "discr": {
                           "Move": {
-                            "local": 9,
+                            "local": 12,
                             "projection": []
                           }
                         },
@@ -4558,90 +4602,95 @@
                           "branches": [
                             [
                               1,
-                              5
+                              7
                             ]
                           ],
-                          "otherwise": 6
+                          "otherwise": 8
                         }
                       }
                     },
-                    "span": 66
+                    "span": 67
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 80,
+                  "span": 81,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 81,
-                  "ty": 38
+                  "span": 82,
+                  "ty": 36
                 },
                 {
                   "mutability": "Not",
-                  "span": 81,
-                  "ty": 28
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 54,
-                  "ty": 21
+                  "span": 82,
+                  "ty": 29
                 },
                 {
                   "mutability": "Not",
-                  "span": 62,
-                  "ty": 39
+                  "span": 82,
+                  "ty": 20
                 },
                 {
                   "mutability": "Mut",
-                  "span": 56,
-                  "ty": 27
+                  "span": 52,
+                  "ty": 20
+                },
+                {
+                  "mutability": "Not",
+                  "span": 59,
+                  "ty": 37
                 },
                 {
                   "mutability": "Mut",
-                  "span": 82,
-                  "ty": 28
+                  "span": 62,
+                  "ty": 20
                 },
                 {
                   "mutability": "Not",
                   "span": 74,
-                  "ty": 39
+                  "ty": 37
                 },
                 {
                   "mutability": "Mut",
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@@ -4869,71 +4948,26 @@
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@@ -5093,7 +5127,7 @@
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@@ -5146,11 +5180,11 @@
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@@ -5158,53 +5192,53 @@
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@@ -5747,7 +5607,7 @@
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@@ -5759,6 +5619,14 @@
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@@ -5766,43 +5634,15 @@
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@@ -5814,128 +5654,308 @@
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@@ -6068,210 +6263,432 @@
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+                          "Move": {
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@@ -7533,73 +7700,61 @@
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+                          "otherwise": 3
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-                              4
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@@ -7609,43 +7764,104 @@
                               },
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+                                "local": 1,
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+                                "projection": []
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@@ -7654,54 +7870,54 @@
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@@ -7710,30 +7926,30 @@
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@@ -7741,14 +7957,14 @@
                               "Ge",
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                                   "projection": []
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@@ -7768,9 +7984,60 @@
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+                                  "projection": []
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@@ -7778,204 +8045,671 @@
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+                                    ]
+                                  }
+                                ]
+                              }
+                            }
                           }
                         ]
                       },
-                      "span": 174
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 20
-                      },
-                      "span": 175
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 24
-                      },
-                      "span": 172
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 23
-                      },
-                      "span": 172
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 22
-                      },
-                      "span": 172
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 21
-                      },
-                      "span": 172
+                      "span": 133
                     },
                     {
                       "kind": {
-                        "StorageDead": 19
+                        "StorageDead": 5
                       },
-                      "span": 176
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 17,
+                      "span": 215
+                    }
+                  ],
+                  "terminator": {
+                    "kind": {
+                      "SwitchInt": {
+                        "discr": {
+                          "Copy": {
+                            "local": 4,
                             "projection": []
-                          },
-                          {
-                            "Cast": [
-                              "Transmute",
-                              {
-                                "Copy": {
-                                  "local": 18,
-                                  "projection": []
-                                }
-                              },
-                              48
-                            ]
                           }
-                        ]
-                      },
-                      "span": 204
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 18
-                      },
-                      "span": 205
+                        },
+                        "targets": {
+                          "branches": [
+                            [
+                              0,
+                              2
+                            ]
+                          ],
+                          "otherwise": 1
+                        }
+                      }
                     },
+                    "span": 213
+                  }
+                },
+                {
+                  "statements": [
                     {
                       "kind": {
-                        "Assign": [
-                          {
-                            "local": 25,
-                            "projection": []
-                          },
-                          {
-                            "NullaryOp": [
-                              "UbChecks",
-                              21
-                            ]
-                          }
-                        ]
+                        "StorageLive": 9
                       },
-                      "span": 159
+                      "span": 217
                     }
                   ],
                   "terminator": {
@@ -7983,7 +8717,7 @@
                       "SwitchInt": {
                         "discr": {
                           "Copy": {
-                            "local": 25,
+                            "local": 3,
                             "projection": []
                           }
                         },
@@ -7991,54 +8725,41 @@
                           "branches": [
                             [
                               0,
-                              9
+                              4
                             ]
                           ],
-                          "otherwise": 7
+                          "otherwise": 3
                         }
                       }
                     },
-                    "span": 199
+                    "span": 216
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageLive": 10
+                        "StorageLive": 6
                       },
-                      "span": 208
+                      "span": 219
                     },
                     {
                       "kind": {
-                        "Assign": [
-                          {
-                            "local": 10,
-                            "projection": []
-                          },
-                          {
-                            "Use": {
-                              "Copy": {
-                                "local": 2,
-                                "projection": []
-                              }
-                            }
-                          }
-                        ]
+                        "StorageLive": 7
                       },
-                      "span": 208
+                      "span": 220
                     },
                     {
                       "kind": {
-                        "StorageLive": 34
+                        "StorageLive": 8
                       },
-                      "span": 209
+                      "span": 221
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 34,
+                            "local": 8,
                             "projection": []
                           },
                           {
@@ -8048,67 +8769,38 @@
                               },
                               "Shared",
                               {
-                                "local": 10,
+                                "local": 2,
                                 "projection": []
                               }
                             ]
                           }
                         ]
                       },
-                      "span": 209
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 34
-                      },
-                      "span": 210
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 35
-                      },
-                      "span": 211
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 36
-                      },
-                      "span": 212
+                      "span": 221
                     },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 36,
-                            "projection": []
-                          },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 10,
-                                "projection": []
-                              }
-                            ]
-                          }
-                        ]
+                    {
+                      "kind": {
+                        "StorageLive": 16
                       },
-                      "span": 212
+                      "span": 222
                     },
                     {
                       "kind": {
-                        "StorageLive": 37
+                        "StorageLive": 17
                       },
-                      "span": 171
+                      "span": 223
+                    },
+                    {
+                      "kind": {
+                        "StorageLive": 18
+                      },
+                      "span": 137
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 37,
+                            "local": 18,
                             "projection": []
                           },
                           {
@@ -8119,7 +8811,7 @@
                                   {
                                     "Field": [
                                       1,
-                                      52
+                                      49
                                     ]
                                   }
                                 ]
@@ -8128,54 +8820,54 @@
                           }
                         ]
                       },
-                      "span": 171
+                      "span": 137
                     },
                     {
                       "kind": {
-                        "StorageLive": 39
+                        "StorageLive": 20
                       },
-                      "span": 172
+                      "span": 138
                     },
                     {
                       "kind": {
-                        "StorageLive": 40
+                        "StorageLive": 21
                       },
-                      "span": 172
+                      "span": 138
                     },
                     {
                       "kind": {
-                        "StorageLive": 41
+                        "StorageLive": 22
                       },
-                      "span": 172
+                      "span": 138
                     },
                     {
                       "kind": {
-                        "StorageLive": 42
+                        "StorageLive": 23
                       },
-                      "span": 172
+                      "span": 138
                     },
                     {
                       "kind": {
-                        "StorageLive": 38
+                        "StorageLive": 19
                       },
-                      "span": 173
+                      "span": 139
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 38,
+                            "local": 19,
                             "projection": []
                           },
                           {
                             "Use": {
                               "Copy": {
-                                "local": 37,
+                                "local": 18,
                                 "projection": [
                                   {
                                     "Field": [
                                       0,
-                                      61
+                                      50
                                     ]
                                   }
                                 ]
@@ -8184,30 +8876,30 @@
                           }
                         ]
                       },
-                      "span": 173
+                      "span": 139
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 39,
+                            "local": 20,
                             "projection": []
                           },
                           {
                             "Discriminant": {
-                              "local": 38,
+                              "local": 19,
                               "projection": []
                             }
                           }
                         ]
                       },
-                      "span": 174
+                      "span": 140
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 40,
+                            "local": 21,
                             "projection": []
                           },
                           {
@@ -8215,14 +8907,14 @@
                               "Ge",
                               {
                                 "Copy": {
-                                  "local": 39,
+                                  "local": 20,
                                   "projection": []
                                 }
                               },
                               {
                                 "Constant": {
                                   "const_": {
-                                    "id": 27,
+                                    "id": 23,
                                     "kind": {
                                       "Allocated": {
                                         "align": 8,
@@ -8242,9 +8934,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 62
+                                    "ty": 51
                                   },
-                                  "span": 174,
+                                  "span": 140,
                                   "user_ty": null
                                 }
                               }
@@ -8252,13 +8944,13 @@
                           }
                         ]
                       },
-                      "span": 174
+                      "span": 140
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 41,
+                            "local": 22,
                             "projection": []
                           },
                           {
@@ -8266,14 +8958,14 @@
                               "Le",
                               {
                                 "Copy": {
-                                  "local": 39,
+                                  "local": 20,
                                   "projection": []
                                 }
                               },
                               {
                                 "Constant": {
                                   "const_": {
-                                    "id": 28,
+                                    "id": 24,
                                     "kind": {
                                       "Allocated": {
                                         "align": 8,
@@ -8293,9 +8985,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 62
+                                    "ty": 51
                                   },
-                                  "span": 174,
+                                  "span": 140,
                                   "user_ty": null
                                 }
                               }
@@ -8303,13 +8995,13 @@
                           }
                         ]
                       },
-                      "span": 174
+                      "span": 140
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 42,
+                            "local": 23,
                             "projection": []
                           },
                           {
@@ -8317,13 +9009,13 @@
                               "BitAnd",
                               {
                                 "Move": {
-                                  "local": 40,
+                                  "local": 21,
                                   "projection": []
                                 }
                               },
                               {
                                 "Move": {
-                                  "local": 41,
+                                  "local": 22,
                                   "projection": []
                                 }
                               }
@@ -8331,26 +9023,26 @@
                           }
                         ]
                       },
-                      "span": 174
+                      "span": 140
                     },
                     {
                       "kind": {
                         "Intrinsic": {
                           "Assume": {
                             "Move": {
-                              "local": 42,
+                              "local": 23,
                               "projection": []
                             }
                           }
                         }
                       },
-                      "span": 174
+                      "span": 140
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 35,
+                            "local": 17,
                             "projection": []
                           },
                           {
@@ -8358,73 +9050,138 @@
                               "IntToInt",
                               {
                                 "Copy": {
-                                  "local": 39,
+                                  "local": 20,
                                   "projection": []
                                 }
                               },
-                              28
+                              29
                             ]
                           }
                         ]
                       },
-                      "span": 174
+                      "span": 140
                     },
                     {
                       "kind": {
-                        "StorageDead": 38
+                        "StorageDead": 19
                       },
-                      "span": 175
+                      "span": 141
                     },
                     {
                       "kind": {
-                        "StorageDead": 42
+                        "StorageDead": 23
                       },
-                      "span": 172
+                      "span": 138
                     },
                     {
                       "kind": {
-                        "StorageDead": 41
+                        "StorageDead": 22
                       },
-                      "span": 172
+                      "span": 138
                     },
                     {
                       "kind": {
-                        "StorageDead": 40
+                        "StorageDead": 21
                       },
-                      "span": 172
+                      "span": 138
                     },
                     {
                       "kind": {
-                        "StorageDead": 39
+                        "StorageDead": 20
                       },
-                      "span": 172
+                      "span": 138
                     },
                     {
                       "kind": {
-                        "StorageDead": 37
+                        "StorageDead": 18
                       },
-                      "span": 176
+                      "span": 142
                     },
                     {
                       "kind": {
-                        "StorageDead": 36
+                        "Assign": [
+                          {
+                            "local": 16,
+                            "projection": []
+                          },
+                          {
+                            "Cast": [
+                              "Transmute",
+                              {
+                                "Copy": {
+                                  "local": 17,
+                                  "projection": []
+                                }
+                              },
+                              55
+                            ]
+                          }
+                        ]
+                      },
+                      "span": 224
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 17
+                      },
+                      "span": 225
+                    },
+                    {
+                      "kind": {
+                        "StorageLive": 27
+                      },
+                      "span": 226
+                    },
+                    {
+                      "kind": {
+                        "Assign": [
+                          {
+                            "local": 24,
+                            "projection": []
+                          },
+                          {
+                            "NullaryOp": [
+                              "UbChecks",
+                              20
+                            ]
+                          }
+                        ]
                       },
-                      "span": 213
+                      "span": 125
                     }
                   ],
+                  "terminator": {
+                    "kind": {
+                      "SwitchInt": {
+                        "discr": {
+                          "Copy": {
+                            "local": 24,
+                            "projection": []
+                          }
+                        },
+                        "targets": {
+                          "branches": [
+                            [
+                              0,
+                              9
+                            ]
+                          ],
+                          "otherwise": 7
+                        }
+                      }
+                    },
+                    "span": 218
+                  }
+                },
+                {
+                  "statements": [],
                   "terminator": {
                     "kind": {
                       "Call": {
                         "args": [
                           {
                             "Copy": {
-                              "local": 4,
-                              "projection": []
-                            }
-                          },
-                          {
-                            "Move": {
-                              "local": 35,
+                              "local": 2,
                               "projection": []
                             }
                           }
@@ -8436,19 +9193,19 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 32,
+                              "id": 34,
                               "kind": "ZeroSized",
-                              "ty": 66
+                              "ty": 68
                             },
-                            "span": 206,
+                            "span": 227,
                             "user_ty": null
                           }
                         },
-                        "target": 13,
-                        "unwind": "Unreachable"
+                        "target": 5,
+                        "unwind": "Continue"
                       }
                     },
-                    "span": 207
+                    "span": 228
                   }
                 },
                 {
@@ -8471,11 +9228,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 33,
+                              "id": 35,
                               "kind": "ZeroSized",
-                              "ty": 67
+                              "ty": 69
                             },
-                            "span": 214,
+                            "span": 229,
                             "user_ty": null
                           }
                         },
@@ -8483,34 +9240,34 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 215
+                    "span": 230
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageLive": 11
+                        "StorageLive": 10
                       },
-                      "span": 217
+                      "span": 232
                     },
                     {
                       "kind": {
-                        "StorageLive": 12
+                        "StorageLive": 11
                       },
-                      "span": 218
+                      "span": 233
                     },
                     {
                       "kind": {
-                        "StorageLive": 13
+                        "StorageLive": 12
                       },
-                      "span": 219
+                      "span": 234
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 14,
+                            "local": 13,
                             "projection": []
                           },
                           {
@@ -8523,19 +9280,42 @@
                           }
                         ]
                       },
-                      "span": 220
+                      "span": 235
+                    },
+                    {
+                      "kind": {
+                        "Assign": [
+                          {
+                            "local": 34,
+                            "projection": []
+                          },
+                          {
+                            "Cast": [
+                              "PtrToPtr",
+                              {
+                                "Copy": {
+                                  "local": 13,
+                                  "projection": []
+                                }
+                              },
+                              53
+                            ]
+                          }
+                        ]
+                      },
+                      "span": 236
                     },
                     {
                       "kind": {
-                        "StorageLive": 44
+                        "StorageLive": 35
                       },
-                      "span": 102
+                      "span": 99
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 44,
+                            "local": 35,
                             "projection": []
                           },
                           {
@@ -8543,16 +9323,16 @@
                               "Transmute",
                               {
                                 "Copy": {
-                                  "local": 14,
+                                  "local": 13,
                                   "projection": []
                                 }
                               },
-                              28
+                              29
                             ]
                           }
                         ]
                       },
-                      "span": 103
+                      "span": 69
                     }
                   ],
                   "terminator": {
@@ -8560,7 +9340,7 @@
                       "SwitchInt": {
                         "discr": {
                           "Move": {
-                            "local": 44,
+                            "local": 35,
                             "projection": []
                           }
                         },
@@ -8568,36 +9348,36 @@
                           "branches": [
                             [
                               0,
-                              14
+                              13
                             ]
                           ],
-                          "otherwise": 15
+                          "otherwise": 14
                         }
                       }
                     },
-                    "span": 216
+                    "span": 231
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 221
+                    "span": 237
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageLive": 27
+                        "StorageLive": 26
                       },
-                      "span": 224
+                      "span": 240
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 27,
+                            "local": 26,
                             "projection": []
                           },
                           {
@@ -8605,16 +9385,16 @@
                               "PtrToPtr",
                               {
                                 "Copy": {
-                                  "local": 17,
+                                  "local": 16,
                                   "projection": []
                                 }
                               },
-                              49
+                              46
                             ]
                           }
                         ]
                       },
-                      "span": 224
+                      "span": 240
                     }
                   ],
                   "terminator": {
@@ -8623,23 +9403,23 @@
                         "args": [
                           {
                             "Move": {
-                              "local": 27,
+                              "local": 26,
                               "projection": []
                             }
                           }
                         ],
                         "destination": {
-                          "local": 26,
+                          "local": 25,
                           "projection": []
                         },
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 34,
+                              "id": 36,
                               "kind": "ZeroSized",
-                              "ty": 68
+                              "ty": 70
                             },
-                            "span": 222,
+                            "span": 238,
                             "user_ty": null
                           }
                         },
@@ -8647,22 +9427,22 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 223
+                    "span": 239
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageDead": 27
+                        "StorageDead": 26
                       },
-                      "span": 225
+                      "span": 241
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 28,
+                            "local": 27,
                             "projection": []
                           },
                           {
@@ -8670,16 +9450,16 @@
                               "PtrToPtr",
                               {
                                 "Copy": {
-                                  "local": 17,
+                                  "local": 16,
                                   "projection": []
                                 }
                               },
-                              27
+                              53
                             ]
                           }
                         ]
                       },
-                      "span": 226
+                      "span": 242
                     },
                     {
                       "kind": {
@@ -8692,7 +9472,7 @@
                             "Aggregate": [
                               {
                                 "Adt": [
-                                  14,
+                                  13,
                                   0,
                                   [
                                     {
@@ -8706,7 +9486,7 @@
                               [
                                 {
                                   "Copy": {
-                                    "local": 28,
+                                    "local": 27,
                                     "projection": []
                                   }
                                 }
@@ -8715,71 +9495,87 @@
                           }
                         ]
                       },
-                      "span": 227
+                      "span": 243
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 27
+                      },
+                      "span": 226
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 16
+                      },
+                      "span": 244
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 228
+                      "span": 245
                     },
                     {
                       "kind": {
                         "StorageLive": 29
                       },
-                      "span": 229
+                      "span": 219
                     },
                     {
                       "kind": {
-                        "StorageLive": 30
+                        "StorageLive": 28
                       },
-                      "span": 230
+                      "span": 246
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 30,
+                            "local": 29,
                             "projection": []
                           },
                           {
-                            "Use": {
-                              "Copy": {
-                                "local": 17,
-                                "projection": []
-                              }
-                            }
+                            "Cast": [
+                              "Transmute",
+                              {
+                                "Copy": {
+                                  "local": 7,
+                                  "projection": []
+                                }
+                              },
+                              55
+                            ]
                           }
                         ]
                       },
-                      "span": 137
+                      "span": 169
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 29,
+                            "local": 28,
                             "projection": []
                           },
                           {
                             "Aggregate": [
                               {
                                 "RawPtr": [
-                                  69,
+                                  71,
                                   "Mut"
                                 ]
                               },
                               [
                                 {
                                   "Copy": {
-                                    "local": 17,
+                                    "local": 29,
                                     "projection": []
                                   }
                                 },
                                 {
                                   "Constant": {
                                     "const_": {
-                                      "id": 12,
+                                      "id": 11,
                                       "kind": {
                                         "Allocated": {
                                           "align": 8,
@@ -8799,9 +9595,9 @@
                                           }
                                         }
                                       },
-                                      "ty": 28
+                                      "ty": 29
                                     },
-                                    "span": 32,
+                                    "span": 29,
                                     "user_ty": null
                                   }
                                 }
@@ -8810,19 +9606,13 @@
                           }
                         ]
                       },
-                      "span": 231
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 30
-                      },
-                      "span": 232
+                      "span": 247
                     },
                     {
                       "kind": {
-                        "StorageLive": 33
+                        "StorageLive": 32
                       },
-                      "span": 233
+                      "span": 248
                     }
                   ],
                   "terminator": {
@@ -8831,7 +9621,7 @@
                         "target": 10
                       }
                     },
-                    "span": 199
+                    "span": 218
                   }
                 },
                 {
@@ -8840,7 +9630,7 @@
                       "kind": {
                         "Assign": [
                           {
-                            "local": 28,
+                            "local": 27,
                             "projection": []
                           },
                           {
@@ -8848,16 +9638,16 @@
                               "PtrToPtr",
                               {
                                 "Copy": {
-                                  "local": 17,
+                                  "local": 16,
                                   "projection": []
                                 }
                               },
-                              27
+                              53
                             ]
                           }
                         ]
                       },
-                      "span": 226
+                      "span": 242
                     },
                     {
                       "kind": {
@@ -8870,7 +9660,7 @@
                             "Aggregate": [
                               {
                                 "Adt": [
-                                  14,
+                                  13,
                                   0,
                                   [
                                     {
@@ -8884,7 +9674,7 @@
                               [
                                 {
                                   "Copy": {
-                                    "local": 28,
+                                    "local": 27,
                                     "projection": []
                                   }
                                 }
@@ -8893,71 +9683,87 @@
                           }
                         ]
                       },
-                      "span": 227
+                      "span": 243
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 27
+                      },
+                      "span": 226
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 16
+                      },
+                      "span": 244
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 228
+                      "span": 245
                     },
                     {
                       "kind": {
                         "StorageLive": 29
                       },
-                      "span": 229
+                      "span": 219
                     },
                     {
                       "kind": {
-                        "StorageLive": 30
+                        "StorageLive": 28
                       },
-                      "span": 230
+                      "span": 246
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 30,
+                            "local": 29,
                             "projection": []
                           },
                           {
-                            "Use": {
-                              "Copy": {
-                                "local": 17,
-                                "projection": []
-                              }
-                            }
+                            "Cast": [
+                              "Transmute",
+                              {
+                                "Copy": {
+                                  "local": 7,
+                                  "projection": []
+                                }
+                              },
+                              55
+                            ]
                           }
                         ]
                       },
-                      "span": 137
+                      "span": 169
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 29,
+                            "local": 28,
                             "projection": []
                           },
                           {
                             "Aggregate": [
                               {
                                 "RawPtr": [
-                                  69,
+                                  71,
                                   "Mut"
                                 ]
                               },
                               [
                                 {
                                   "Copy": {
-                                    "local": 17,
+                                    "local": 29,
                                     "projection": []
                                   }
                                 },
                                 {
                                   "Constant": {
                                     "const_": {
-                                      "id": 12,
+                                      "id": 11,
                                       "kind": {
                                         "Allocated": {
                                           "align": 8,
@@ -8977,9 +9783,9 @@
                                           }
                                         }
                                       },
-                                      "ty": 28
+                                      "ty": 29
                                     },
-                                    "span": 32,
+                                    "span": 29,
                                     "user_ty": null
                                   }
                                 }
@@ -8988,19 +9794,13 @@
                           }
                         ]
                       },
-                      "span": 231
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 30
-                      },
-                      "span": 232
+                      "span": 247
                     },
                     {
                       "kind": {
-                        "StorageLive": 33
+                        "StorageLive": 32
                       },
-                      "span": 233
+                      "span": 248
                     }
                   ],
                   "terminator": {
@@ -9008,7 +9808,7 @@
                       "SwitchInt": {
                         "discr": {
                           "Copy": {
-                            "local": 25,
+                            "local": 24,
                             "projection": []
                           }
                         },
@@ -9023,22 +9823,22 @@
                         }
                       }
                     },
-                    "span": 199
+                    "span": 218
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageLive": 32
+                        "StorageLive": 31
                       },
-                      "span": 224
+                      "span": 240
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 32,
+                            "local": 31,
                             "projection": []
                           },
                           {
@@ -9046,16 +9846,16 @@
                               "PtrToPtr",
                               {
                                 "Copy": {
-                                  "local": 17,
+                                  "local": 29,
                                   "projection": []
                                 }
                               },
-                              49
+                              46
                             ]
                           }
                         ]
                       },
-                      "span": 224
+                      "span": 240
                     }
                   ],
                   "terminator": {
@@ -9064,23 +9864,23 @@
                         "args": [
                           {
                             "Move": {
-                              "local": 32,
+                              "local": 31,
                               "projection": []
                             }
                           }
                         ],
                         "destination": {
-                          "local": 31,
+                          "local": 30,
                           "projection": []
                         },
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 34,
+                              "id": 36,
                               "kind": "ZeroSized",
-                              "ty": 68
+                              "ty": 70
                             },
-                            "span": 222,
+                            "span": 238,
                             "user_ty": null
                           }
                         },
@@ -9088,16 +9888,16 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 223
+                    "span": 239
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageDead": 32
+                        "StorageDead": 31
                       },
-                      "span": 225
+                      "span": 241
                     }
                   ],
                   "terminator": {
@@ -9106,7 +9906,7 @@
                         "target": 12
                       }
                     },
-                    "span": 234
+                    "span": 249
                   }
                 },
                 {
@@ -9115,7 +9915,7 @@
                       "kind": {
                         "Assign": [
                           {
-                            "local": 33,
+                            "local": 32,
                             "projection": []
                           },
                           {
@@ -9123,16 +9923,16 @@
                               "PtrToPtr",
                               {
                                 "Copy": {
-                                  "local": 29,
+                                  "local": 28,
                                   "projection": []
                                 }
                               },
-                              55
+                              72
                             ]
                           }
                         ]
                       },
-                      "span": 226
+                      "span": 242
                     },
                     {
                       "kind": {
@@ -9145,11 +9945,11 @@
                             "Aggregate": [
                               {
                                 "Adt": [
-                                  14,
+                                  13,
                                   0,
                                   [
                                     {
-                                      "Type": 69
+                                      "Type": 71
                                     }
                                   ],
                                   null,
@@ -9159,7 +9959,7 @@
                               [
                                 {
                                   "Copy": {
-                                    "local": 33,
+                                    "local": 32,
                                     "projection": []
                                   }
                                 }
@@ -9168,25 +9968,31 @@
                           }
                         ]
                       },
-                      "span": 227
+                      "span": 243
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 32
+                      },
+                      "span": 248
                     },
                     {
                       "kind": {
-                        "StorageDead": 33
+                        "StorageDead": 28
                       },
-                      "span": 233
+                      "span": 251
                     },
                     {
                       "kind": {
                         "StorageDead": 29
                       },
-                      "span": 236
+                      "span": 219
                     },
                     {
                       "kind": {
                         "StorageDead": 7
                       },
-                      "span": 237
+                      "span": 252
                     },
                     {
                       "kind": {
@@ -9203,10 +10009,10 @@
                                   0,
                                   [
                                     {
-                                      "Type": 54
+                                      "Type": 59
                                     },
                                     {
-                                      "Type": 70
+                                      "Type": 73
                                     }
                                   ],
                                   null,
@@ -9225,13 +10031,13 @@
                           }
                         ]
                       },
-                      "span": 238
+                      "span": 253
                     },
                     {
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 235
+                      "span": 250
                     }
                   ],
                   "terminator": {
@@ -9240,7 +10046,7 @@
                         "target": 6
                       }
                     },
-                    "span": 235
+                    "span": 250
                   }
                 },
                 {
@@ -9249,44 +10055,20 @@
                       "kind": {
                         "StorageDead": 35
                       },
-                      "span": 240
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 10
-                      },
-                      "span": 241
-                    }
-                  ],
-                  "terminator": {
-                    "kind": {
-                      "Goto": {
-                        "target": 5
-                      }
-                    },
-                    "span": 239
-                  }
-                },
-                {
-                  "statements": [
-                    {
-                      "kind": {
-                        "StorageDead": 44
-                      },
-                      "span": 216
+                      "span": 231
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 13,
+                            "local": 12,
                             "projection": []
                           },
                           {
                             "Use": {
                               "Constant": {
                                 "const_": {
-                                  "id": 35,
+                                  "id": 37,
                                   "kind": {
                                     "Allocated": {
                                       "align": 8,
@@ -9306,35 +10088,35 @@
                                       }
                                     }
                                   },
-                                  "ty": 71
+                                  "ty": 74
                                 },
-                                "span": 32,
+                                "span": 29,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 242
+                      "span": 254
                     },
                     {
                       "kind": {
-                        "StorageLive": 49
+                        "StorageLive": 39
                       },
-                      "span": 243
+                      "span": 255
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 12,
+                            "local": 11,
                             "projection": []
                           },
                           {
                             "Use": {
                               "Constant": {
                                 "const_": {
-                                  "id": 36,
+                                  "id": 38,
                                   "kind": {
                                     "Allocated": {
                                       "align": 8,
@@ -9354,46 +10136,46 @@
                                       }
                                     }
                                   },
-                                  "ty": 72
+                                  "ty": 75
                                 },
-                                "span": 32,
+                                "span": 29,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 244
+                      "span": 256
                     },
                     {
                       "kind": {
-                        "StorageDead": 49
+                        "StorageDead": 39
                       },
-                      "span": 243
+                      "span": 255
                     },
                     {
                       "kind": {
-                        "StorageDead": 13
+                        "StorageDead": 12
                       },
-                      "span": 245
+                      "span": 257
                     },
                     {
                       "kind": {
-                        "StorageLive": 50
+                        "StorageLive": 40
                       },
-                      "span": 217
+                      "span": 232
                     },
                     {
                       "kind": {
-                        "StorageDead": 50
+                        "StorageDead": 40
                       },
-                      "span": 217
+                      "span": 232
                     },
                     {
                       "kind": {
-                        "StorageDead": 12
+                        "StorageDead": 11
                       },
-                      "span": 246
+                      "span": 258
                     },
                     {
                       "kind": {
@@ -9406,7 +10188,7 @@
                             "Use": {
                               "Constant": {
                                 "const_": {
-                                  "id": 37,
+                                  "id": 39,
                                   "kind": {
                                     "Allocated": {
                                       "align": 8,
@@ -9434,28 +10216,28 @@
                                       }
                                     }
                                   },
-                                  "ty": 57
+                                  "ty": 64
                                 },
-                                "span": 32,
+                                "span": 29,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 247
+                      "span": 259
                     },
                     {
                       "kind": {
-                        "StorageDead": 11
+                        "StorageDead": 10
                       },
-                      "span": 248
+                      "span": 260
                     },
                     {
                       "kind": {
                         "StorageDead": 9
                       },
-                      "span": 249
+                      "span": 261
                     }
                   ],
                   "terminator": {
@@ -9464,51 +10246,45 @@
                         "target": 6
                       }
                     },
-                    "span": 221
+                    "span": 237
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageDead": 44
-                      },
-                      "span": 216
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 43
+                        "StorageDead": 35
                       },
-                      "span": 250
+                      "span": 231
                     },
                     {
                       "kind": {
-                        "StorageLive": 48
+                        "StorageLive": 33
                       },
-                      "span": 251
+                      "span": 262
                     },
                     {
                       "kind": {
-                        "StorageLive": 45
+                        "StorageLive": 36
                       },
-                      "span": 199
+                      "span": 218
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 45,
+                            "local": 36,
                             "projection": []
                           },
                           {
                             "NullaryOp": [
                               "UbChecks",
-                              21
+                              20
                             ]
                           }
                         ]
                       },
-                      "span": 159
+                      "span": 125
                     }
                   ],
                   "terminator": {
@@ -9516,7 +10292,7 @@
                       "SwitchInt": {
                         "discr": {
                           "Move": {
-                            "local": 45,
+                            "local": 36,
                             "projection": []
                           }
                         },
@@ -9524,29 +10300,29 @@
                           "branches": [
                             [
                               0,
-                              18
+                              17
                             ]
                           ],
-                          "otherwise": 16
+                          "otherwise": 15
                         }
                       }
                     },
-                    "span": 199
+                    "span": 218
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageLive": 47
+                        "StorageLive": 38
                       },
-                      "span": 224
+                      "span": 240
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 47,
+                            "local": 38,
                             "projection": []
                           },
                           {
@@ -9554,16 +10330,16 @@
                               "PtrToPtr",
                               {
                                 "Copy": {
-                                  "local": 14,
+                                  "local": 13,
                                   "projection": []
                                 }
                               },
-                              49
+                              46
                             ]
                           }
                         ]
                       },
-                      "span": 224
+                      "span": 240
                     }
                   ],
                   "terminator": {
@@ -9572,94 +10348,71 @@
                         "args": [
                           {
                             "Move": {
-                              "local": 47,
+                              "local": 38,
                               "projection": []
                             }
                           }
                         ],
                         "destination": {
-                          "local": 46,
+                          "local": 37,
                           "projection": []
                         },
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 34,
+                              "id": 36,
                               "kind": "ZeroSized",
-                              "ty": 68
+                              "ty": 70
                             },
-                            "span": 222,
+                            "span": 238,
                             "user_ty": null
                           }
                         },
-                        "target": 17,
+                        "target": 16,
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 223
+                    "span": 239
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageDead": 47
+                        "StorageDead": 38
                       },
-                      "span": 225
+                      "span": 241
                     }
                   ],
                   "terminator": {
                     "kind": {
                       "Goto": {
-                        "target": 18
+                        "target": 17
                       }
                     },
-                    "span": 234
+                    "span": 249
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageDead": 45
-                      },
-                      "span": 252
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 48,
-                            "projection": []
-                          },
-                          {
-                            "Cast": [
-                              "PtrToPtr",
-                              {
-                                "Copy": {
-                                  "local": 14,
-                                  "projection": []
-                                }
-                              },
-                              27
-                            ]
-                          }
-                        ]
+                        "StorageDead": 36
                       },
-                      "span": 226
+                      "span": 263
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 43,
+                            "local": 33,
                             "projection": []
                           },
                           {
                             "Aggregate": [
                               {
                                 "Adt": [
-                                  14,
+                                  13,
                                   0,
                                   [
                                     {
@@ -9673,7 +10426,7 @@
                               [
                                 {
                                   "Copy": {
-                                    "local": 48,
+                                    "local": 34,
                                     "projection": []
                                   }
                                 }
@@ -9682,19 +10435,13 @@
                           }
                         ]
                       },
-                      "span": 227
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 48
-                      },
-                      "span": 251
+                      "span": 243
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 13,
+                            "local": 12,
                             "projection": []
                           },
                           {
@@ -9705,7 +10452,7 @@
                                   1,
                                   [
                                     {
-                                      "Type": 58
+                                      "Type": 65
                                     }
                                   ],
                                   null,
@@ -9715,7 +10462,7 @@
                               [
                                 {
                                   "Move": {
-                                    "local": 43,
+                                    "local": 33,
                                     "projection": []
                                   }
                                 }
@@ -9724,31 +10471,31 @@
                           }
                         ]
                       },
-                      "span": 253
+                      "span": 264
                     },
                     {
                       "kind": {
-                        "StorageDead": 43
+                        "StorageDead": 33
                       },
-                      "span": 254
+                      "span": 265
                     },
                     {
                       "kind": {
-                        "StorageLive": 49
+                        "StorageLive": 39
                       },
-                      "span": 243
+                      "span": 255
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 49,
+                            "local": 39,
                             "projection": []
                           },
                           {
                             "Use": {
                               "Move": {
-                                "local": 13,
+                                "local": 12,
                                 "projection": [
                                   {
                                     "Downcast": 1
@@ -9756,7 +10503,7 @@
                                   {
                                     "Field": [
                                       0,
-                                      58
+                                      65
                                     ]
                                   }
                                 ]
@@ -9765,13 +10512,13 @@
                           }
                         ]
                       },
-                      "span": 255
+                      "span": 266
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 12,
+                            "local": 11,
                             "projection": []
                           },
                           {
@@ -9782,10 +10529,10 @@
                                   0,
                                   [
                                     {
-                                      "Type": 58
+                                      "Type": 65
                                     },
                                     {
-                                      "Type": 70
+                                      "Type": 73
                                     }
                                   ],
                                   null,
@@ -9795,7 +10542,7 @@
                               [
                                 {
                                   "Copy": {
-                                    "local": 49,
+                                    "local": 39,
                                     "projection": []
                                   }
                                 }
@@ -9804,37 +10551,37 @@
                           }
                         ]
                       },
-                      "span": 256
+                      "span": 267
                     },
                     {
                       "kind": {
-                        "StorageDead": 49
+                        "StorageDead": 39
                       },
-                      "span": 243
+                      "span": 255
                     },
                     {
                       "kind": {
-                        "StorageDead": 13
+                        "StorageDead": 12
                       },
-                      "span": 245
+                      "span": 257
                     },
                     {
                       "kind": {
-                        "StorageLive": 50
+                        "StorageLive": 40
                       },
-                      "span": 217
+                      "span": 232
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 50,
+                            "local": 40,
                             "projection": []
                           },
                           {
                             "Use": {
                               "Move": {
-                                "local": 12,
+                                "local": 11,
                                 "projection": [
                                   {
                                     "Downcast": 0
@@ -9842,7 +10589,7 @@
                                   {
                                     "Field": [
                                       0,
-                                      58
+                                      65
                                     ]
                                   }
                                 ]
@@ -9851,13 +10598,13 @@
                           }
                         ]
                       },
-                      "span": 257
+                      "span": 268
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 11,
+                            "local": 10,
                             "projection": []
                           },
                           {
@@ -9868,10 +10615,10 @@
                                   0,
                                   [
                                     {
-                                      "Type": 73
+                                      "Type": 76
                                     },
                                     {
-                                      "Type": 58
+                                      "Type": 65
                                     }
                                   ],
                                   null,
@@ -9881,7 +10628,7 @@
                               [
                                 {
                                   "Copy": {
-                                    "local": 50,
+                                    "local": 40,
                                     "projection": []
                                   }
                                 }
@@ -9890,31 +10637,31 @@
                           }
                         ]
                       },
-                      "span": 258
+                      "span": 269
                     },
                     {
                       "kind": {
-                        "StorageDead": 50
+                        "StorageDead": 40
                       },
-                      "span": 217
+                      "span": 232
                     },
                     {
                       "kind": {
-                        "StorageDead": 12
+                        "StorageDead": 11
                       },
-                      "span": 246
+                      "span": 258
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 15,
+                            "local": 14,
                             "projection": []
                           },
                           {
                             "Use": {
                               "Copy": {
-                                "local": 11,
+                                "local": 10,
                                 "projection": [
                                   {
                                     "Downcast": 0
@@ -9922,7 +10669,7 @@
                                   {
                                     "Field": [
                                       0,
-                                      58
+                                      65
                                     ]
                                   }
                                 ]
@@ -9931,106 +10678,74 @@
                           }
                         ]
                       },
-                      "span": 259
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 11
-                      },
-                      "span": 248
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 16
-                      },
-                      "span": 260
+                      "span": 270
                     },
                     {
                       "kind": {
-                        "StorageLive": 53
+                        "StorageDead": 10
                       },
                       "span": 260
                     },
                     {
                       "kind": {
-                        "StorageLive": 51
+                        "StorageLive": 15
                       },
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                       "kind": {
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-                                      27
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                     },
                     {
                       "kind": {
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                           {
-                            "local": 52,
+                            "local": 42,
                             "projection": []
                           },
                           {
                             "Cast": [
-                              "PtrToPtr",
+                              "Transmute",
                               {
                                 "Copy": {
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                                   "projection": []
                                 }
                               },
-                              48
+                              55
                             ]
                           }
                         ]
                       },
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                     },
                     {
                       "kind": {
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                             "projection": []
                           },
                           {
                             "Aggregate": [
                               {
                                 "RawPtr": [
-                                  69,
+                                  71,
                                   "Mut"
                                 ]
                               },
                               [
                                 {
                                   "Copy": {
-                                    "local": 52,
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@@ -10045,42 +10760,36 @@
                           }
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-                    {
-                      "kind": {
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-                      },
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                     {
                       "kind": {
                         "Assign": [
                           {
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                           },
                           {
                             "NullaryOp": [
                               "UbChecks",
-                              21
+                              20
                             ]
                           }
                         ]
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                     }
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                   "terminator": {
@@ -10088,7 +10797,7 @@
                       "SwitchInt": {
                         "discr": {
                           "Move": {
-                            "local": 54,
+                            "local": 43,
                             "projection": []
                           }
                         },
@@ -10096,29 +10805,29 @@
                           "branches": [
                             [
                               0,
-                              21
+                              20
                             ]
                           ],
-                          "otherwise": 19
+                          "otherwise": 18
                         }
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                   }
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                 {
                   "statements": [
                     {
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                     },
                     {
                       "kind": {
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-                            "local": 56,
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                           {
@@ -10126,16 +10835,16 @@
                               "PtrToPtr",
                               {
                                 "Copy": {
-                                  "local": 53,
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                                   "projection": []
                                 }
                               },
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                             ]
                           }
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@@ -10144,64 +10853,64 @@
                         "args": [
                           {
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                               "projection": []
                             }
                           }
                         ],
                         "destination": {
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                           "projection": []
                         },
                         "func": {
                           "Constant": {
                             "const_": {
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                               "kind": "ZeroSized",
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                         },
-                        "target": 20,
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                         "unwind": "Unreachable"
                       }
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                 {
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                           {
@@ -10209,33 +10918,33 @@
                               "PtrToPtr",
                               {
                                 "Copy": {
-                                  "local": 51,
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                                   "projection": []
                                 }
                               },
-                              55
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                             ]
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@@ -10245,7 +10954,7 @@
                               [
                                 {
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@@ -10254,25 +10963,25 @@
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@@ -10289,10 +10998,10 @@
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@@ -10302,7 +11011,7 @@
                               [
                                 {
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@@ -10311,19 +11020,19 @@
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@@ -10332,303 +11041,248 @@
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@@ -10637,7 +11291,7 @@
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@@ -10652,7 +11306,7 @@
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@@ -10667,7 +11321,7 @@
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@@ -10682,7 +11336,7 @@
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@@ -10697,7 +11351,7 @@
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@@ -10712,11 +11366,11 @@
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@@ -10727,16 +11381,16 @@
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                         "kind": "ZeroSized",
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@@ -10747,11 +11401,11 @@
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@@ -10762,7 +11416,7 @@
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@@ -10777,7 +11431,7 @@
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@@ -10792,7 +11446,7 @@
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@@ -10801,32 +11455,17 @@
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@@ -10837,11 +11476,11 @@
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@@ -10852,7 +11491,7 @@
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@@ -10867,12 +11506,12 @@
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@@ -10892,9 +11531,9 @@
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@@ -10905,7 +11544,7 @@
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@@ -10920,11 +11559,11 @@
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@@ -10935,65 +11574,12 @@
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@@ -11013,9 +11599,9 @@
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@@ -11026,11 +11612,11 @@
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                   "source_info": {
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                     "Place": {
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                     }
                   }
@@ -11038,14 +11624,14 @@
                 {
                   "argument_index": 1,
                   "composite": null,
-                  "name": "layout",
+                  "name": "ptr",
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@@ -11056,71 +11642,11 @@
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@@ -11129,58 +11655,13 @@
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@@ -11190,12 +11671,12 @@
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@@ -11205,17 +11686,17 @@
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                       "const_": {
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                         "kind": "ZeroSized",
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                       },
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@@ -11225,12 +11706,12 @@
                   "composite": null,
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@@ -11240,12 +11721,12 @@
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@@ -11255,12 +11736,12 @@
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@@ -11270,17 +11751,17 @@
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                         "kind": "ZeroSized",
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@@ -11290,12 +11771,12 @@
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@@ -11305,8 +11786,8 @@
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@@ -11316,46 +11797,16 @@
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-                    }
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-                {
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                     }
                   }
@@ -11363,14 +11814,14 @@
                 {
                   "argument_index": 1,
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-                  "name": "data_pointer",
+                  "name": "data",
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                   },
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                     }
                   }
@@ -11378,10 +11829,10 @@
                 {
                   "argument_index": 2,
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@@ -11395,12 +11846,12 @@
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@@ -11410,17 +11861,17 @@
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                   },
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                         "kind": "ZeroSized",
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@@ -11430,17 +11881,17 @@
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                         "kind": "ZeroSized",
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@@ -11450,17 +11901,17 @@
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                         "kind": "ZeroSized",
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@@ -11499,7 +11950,7 @@
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@@ -11516,7 +11967,7 @@
                           }
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@@ -11543,11 +11994,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
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+                              "id": 42,
                               "kind": "ZeroSized",
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                             },
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@@ -11557,7 +12008,7 @@
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@@ -11582,7 +12033,7 @@
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                     {
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@@ -11599,19 +12050,19 @@
                                   {
                                     "Field": [
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                                     "Field": [
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                                   {
                                     "Field": [
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@@ -11620,7 +12071,7 @@
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@@ -11641,12 +12092,12 @@
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@@ -11662,50 +12113,50 @@
                         "unwind": "Terminate"
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                   "mutability": "Mut",
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@@ -11714,7 +12165,7 @@
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@@ -11746,7 +12197,7 @@
                       "kind": {
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@@ -11769,7 +12220,7 @@
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@@ -11786,7 +12237,7 @@
                                   {
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@@ -11795,13 +12246,13 @@
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@@ -11824,7 +12275,7 @@
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@@ -11833,39 +12284,7 @@
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@@ -11876,31 +12295,25 @@
                           },
                           {
                             "Cast": [
-                              "PtrToPtr",
+                              "Transmute",
                               {
-                                "Move": {
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+                                "Copy": {
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@@ -11919,19 +12332,19 @@
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@@ -11948,31 +12361,31 @@
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@@ -11989,19 +12402,19 @@
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@@ -12012,7 +12425,7 @@
                                   {
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@@ -12021,54 +12434,54 @@
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                           {
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@@ -12077,30 +12490,30 @@
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@@ -12108,14 +12521,14 @@
                               "Ge",
                               {
                                 "Copy": {
-                                  "local": 14,
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                                   "projection": []
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                               {
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@@ -12135,9 +12548,9 @@
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@@ -12145,13 +12558,13 @@
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@@ -12159,14 +12572,14 @@
                               "Le",
                               {
                                 "Copy": {
-                                  "local": 14,
+                                  "local": 13,
                                   "projection": []
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                               },
                               {
                                 "Constant": {
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-                                    "id": 28,
+                                    "id": 24,
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@@ -12186,9 +12599,9 @@
                                         }
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@@ -12196,13 +12609,13 @@
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@@ -12210,13 +12623,13 @@
                               "BitAnd",
                               {
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-                                  "local": 15,
+                                  "local": 14,
                                   "projection": []
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                               {
                                 "Move": {
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@@ -12224,26 +12637,26 @@
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                     {
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                           "Assume": {
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-                              "local": 17,
+                              "local": 16,
                               "projection": []
                             }
                           }
                         }
                       },
-                      "span": 174
+                      "span": 140
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 10,
+                            "local": 9,
                             "projection": []
                           },
                           {
@@ -12251,58 +12664,58 @@
                               "IntToInt",
                               {
                                 "Copy": {
-                                  "local": 14,
+                                  "local": 13,
                                   "projection": []
                                 }
                               },
-                              28
+                              29
                             ]
                           }
                         ]
                       },
-                      "span": 174
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 13
-                      },
-                      "span": 175
+                      "span": 140
                     },
                     {
                       "kind": {
-                        "StorageDead": 17
+                        "StorageDead": 12
                       },
-                      "span": 172
+                      "span": 141
                     },
                     {
                       "kind": {
                         "StorageDead": 16
                       },
-                      "span": 172
+                      "span": 138
                     },
                     {
                       "kind": {
                         "StorageDead": 15
                       },
-                      "span": 172
+                      "span": 138
                     },
                     {
                       "kind": {
                         "StorageDead": 14
                       },
-                      "span": 172
+                      "span": 138
                     },
                     {
                       "kind": {
-                        "StorageDead": 12
+                        "StorageDead": 13
                       },
-                      "span": 176
+                      "span": 138
                     },
                     {
                       "kind": {
                         "StorageDead": 11
                       },
-                      "span": 311
+                      "span": 142
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 10
+                      },
+                      "span": 320
                     }
                   ],
                   "terminator": {
@@ -12323,7 +12736,7 @@
                           },
                           {
                             "Move": {
-                              "local": 10,
+                              "local": 9,
                               "projection": []
                             }
                           }
@@ -12335,11 +12748,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 41,
+                              "id": 43,
                               "kind": "ZeroSized",
-                              "ty": 78
+                              "ty": 80
                             },
-                            "span": 302,
+                            "span": 312,
                             "user_ty": null
                           }
                         },
@@ -12347,35 +12760,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 303
+                    "span": 313
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 312
+                    "span": 321
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageDead": 10
+                        "StorageDead": 9
                       },
-                      "span": 314
+                      "span": 323
                     },
                     {
                       "kind": {
                         "StorageDead": 7
                       },
-                      "span": 315
+                      "span": 324
                     },
                     {
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 315
+                      "span": 324
                     }
                   ],
                   "terminator": {
@@ -12384,103 +12797,98 @@
                         "target": 2
                       }
                     },
-                    "span": 313
+                    "span": 322
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 316,
+                  "span": 325,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 317,
-                  "ty": 51
+                  "span": 326,
+                  "ty": 63
                 },
                 {
                   "mutability": "Not",
-                  "span": 318,
-                  "ty": 58
+                  "span": 327,
+                  "ty": 65
                 },
                 {
                   "mutability": "Not",
-                  "span": 319,
+                  "span": 328,
                   "ty": 56
                 },
                 {
                   "mutability": "Mut",
-                  "span": 320,
-                  "ty": 28
+                  "span": 329,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 300,
-                  "ty": 65
+                  "span": 310,
+                  "ty": 57
                 },
                 {
                   "mutability": "Mut",
-                  "span": 304,
-                  "ty": 48
+                  "span": 314,
+                  "ty": 55
                 },
                 {
                   "mutability": "Mut",
-                  "span": 306,
+                  "span": 315,
                   "ty": 56
                 },
                 {
                   "mutability": "Mut",
-                  "span": 134,
-                  "ty": 27
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 307,
-                  "ty": 65
+                  "span": 316,
+                  "ty": 57
                 },
                 {
                   "mutability": "Mut",
-                  "span": 309,
-                  "ty": 28
+                  "span": 318,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 310,
-                  "ty": 65
+                  "span": 319,
+                  "ty": 57
                 },
                 {
                   "mutability": "Mut",
-                  "span": 171,
-                  "ty": 52
+                  "span": 137,
+                  "ty": 49
                 },
                 {
                   "mutability": "Not",
-                  "span": 173,
-                  "ty": 61
+                  "span": 139,
+                  "ty": 50
                 },
                 {
                   "mutability": "Mut",
-                  "span": 173,
-                  "ty": 62
+                  "span": 139,
+                  "ty": 51
                 },
                 {
                   "mutability": "Mut",
-                  "span": 174,
-                  "ty": 21
+                  "span": 140,
+                  "ty": 20
                 },
                 {
                   "mutability": "Mut",
-                  "span": 174,
-                  "ty": 21
+                  "span": 140,
+                  "ty": 20
                 },
                 {
                   "mutability": "Mut",
-                  "span": 174,
-                  "ty": 21
+                  "span": 140,
+                  "ty": 20
                 }
               ],
-              "span": 323,
+              "span": 332,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -12489,7 +12897,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 0,
-                    "span": 317
+                    "span": 326
                   },
                   "value": {
                     "Place": {
@@ -12504,7 +12912,7 @@
                   "name": "ptr",
                   "source_info": {
                     "scope": 0,
-                    "span": 318
+                    "span": 327
                   },
                   "value": {
                     "Place": {
@@ -12519,7 +12927,7 @@
                   "name": "layout",
                   "source_info": {
                     "scope": 0,
-                    "span": 319
+                    "span": 328
                   },
                   "value": {
                     "Place": {
@@ -12534,7 +12942,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 190
+                    "span": 157
                   },
                   "value": {
                     "Place": {
@@ -12549,7 +12957,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 2,
-                    "span": 155
+                    "span": 290
                   },
                   "value": {
                     "Place": {
@@ -12564,7 +12972,7 @@
                   "name": "ptr",
                   "source_info": {
                     "scope": 3,
-                    "span": 321
+                    "span": 330
                   },
                   "value": {
                     "Place": {
@@ -12574,31 +12982,16 @@
                   }
                 },
                 {
-                  "argument_index": 2,
-                  "composite": null,
-                  "name": "layout",
-                  "source_info": {
-                    "scope": 3,
-                    "span": 322
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 7,
-                      "projection": []
-                    }
-                  }
-                },
-                {
-                  "argument_index": 1,
+                  "argument_index": 2,
                   "composite": null,
-                  "name": "self",
+                  "name": "layout",
                   "source_info": {
-                    "scope": 4,
-                    "span": 190
+                    "scope": 3,
+                    "span": 331
                   },
                   "value": {
                     "Place": {
-                      "local": 9,
+                      "local": 7,
                       "projection": []
                     }
                   }
@@ -12608,12 +13001,12 @@
                   "composite": null,
                   "name": "self",
                   "source_info": {
-                    "scope": 5,
-                    "span": 191
+                    "scope": 4,
+                    "span": 157
                   },
                   "value": {
                     "Place": {
-                      "local": 11,
+                      "local": 8,
                       "projection": []
                     }
                   }
@@ -12623,12 +13016,12 @@
                   "composite": null,
                   "name": "self",
                   "source_info": {
-                    "scope": 6,
-                    "span": 192
+                    "scope": 5,
+                    "span": 158
                   },
                   "value": {
                     "Place": {
-                      "local": 12,
+                      "local": 10,
                       "projection": []
                     }
                   }
@@ -12652,12 +13045,6 @@
               "blocks": [
                 {
                   "statements": [
-                    {
-                      "kind": {
-                        "StorageLive": 3
-                      },
-                      "span": 326
-                    },
                     {
                       "kind": {
                         "Assign": [
@@ -12677,7 +13064,7 @@
                           }
                         ]
                       },
-                      "span": 326
+                      "span": 335
                     },
                     {
                       "kind": {
@@ -12694,19 +13081,19 @@
                                   {
                                     "Field": [
                                       0,
-                                      42
+                                      40
                                     ]
                                   },
                                   {
                                     "Field": [
                                       0,
-                                      43
+                                      41
                                     ]
                                   },
                                   {
                                     "Field": [
                                       0,
-                                      44
+                                      42
                                     ]
                                   }
                                 ]
@@ -12715,7 +13102,7 @@
                           }
                         ]
                       },
-                      "span": 326
+                      "span": 335
                     },
                     {
                       "kind": {
@@ -12740,13 +13127,7 @@
                           }
                         ]
                       },
-                      "span": 326
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 4
-                      },
-                      "span": 327
+                      "span": 335
                     },
                     {
                       "kind": {
@@ -12767,7 +13148,7 @@
                           }
                         ]
                       },
-                      "span": 327
+                      "span": 336
                     },
                     {
                       "kind": {
@@ -12784,19 +13165,19 @@
                                   {
                                     "Field": [
                                       0,
-                                      42
+                                      40
                                     ]
                                   },
                                   {
                                     "Field": [
                                       0,
-                                      43
+                                      41
                                     ]
                                   },
                                   {
                                     "Field": [
                                       0,
-                                      44
+                                      42
                                     ]
                                   }
                                 ]
@@ -12805,7 +13186,7 @@
                           }
                         ]
                       },
-                      "span": 327
+                      "span": 336
                     },
                     {
                       "kind": {
@@ -12830,7 +13211,7 @@
                           }
                         ]
                       },
-                      "span": 327
+                      "span": 336
                     }
                   ],
                   "terminator": {
@@ -12857,11 +13238,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 42,
+                              "id": 44,
                               "kind": "ZeroSized",
-                              "ty": 79
+                              "ty": 81
                             },
-                            "span": 324,
+                            "span": 333,
                             "user_ty": null
                           }
                         },
@@ -12869,78 +13250,65 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 325
+                    "span": 334
                   }
                 },
                 {
-                  "statements": [
-                    {
-                      "kind": {
-                        "StorageDead": 4
-                      },
-                      "span": 329
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 3
-                      },
-                      "span": 329
-                    }
-                  ],
+                  "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 328
+                    "span": 337
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 330,
-                  "ty": 21
+                  "span": 338,
+                  "ty": 20
                 },
                 {
                   "mutability": "Not",
-                  "span": 331,
-                  "ty": 80
+                  "span": 339,
+                  "ty": 82
                 },
                 {
                   "mutability": "Not",
-                  "span": 332,
-                  "ty": 80
+                  "span": 340,
+                  "ty": 82
                 },
                 {
-                  "mutability": "Mut",
-                  "span": 326,
-                  "ty": 22
+                  "mutability": "Not",
+                  "span": 335,
+                  "ty": 21
                 },
                 {
-                  "mutability": "Mut",
-                  "span": 327,
-                  "ty": 22
+                  "mutability": "Not",
+                  "span": 336,
+                  "ty": 21
                 },
                 {
                   "mutability": "Mut",
-                  "span": 331,
-                  "ty": 77
+                  "span": 339,
+                  "ty": 79
                 },
                 {
                   "mutability": "Mut",
-                  "span": 332,
-                  "ty": 77
+                  "span": 340,
+                  "ty": 79
                 },
                 {
                   "mutability": "Mut",
-                  "span": 331,
-                  "ty": 44
+                  "span": 339,
+                  "ty": 42
                 },
                 {
                   "mutability": "Mut",
-                  "span": 332,
-                  "ty": 44
+                  "span": 340,
+                  "ty": 42
                 }
               ],
-              "span": 333,
+              "span": 341,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -12949,7 +13317,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 0,
-                    "span": 331
+                    "span": 339
                   },
                   "value": {
                     "Place": {
@@ -12964,7 +13332,7 @@
                   "name": "other",
                   "source_info": {
                     "scope": 0,
-                    "span": 332
+                    "span": 340
                   },
                   "value": {
                     "Place": {
@@ -12996,7 +13364,7 @@
                       "kind": {
                         "Assign": [
                           {
-                            "local": 12,
+                            "local": 15,
                             "projection": []
                           },
                           {
@@ -13008,13 +13376,13 @@
                                   {
                                     "Field": [
                                       0,
-                                      42
+                                      40
                                     ]
                                   },
                                   {
                                     "Field": [
                                       0,
-                                      43
+                                      41
                                     ]
                                   }
                                 ]
@@ -13023,13 +13391,13 @@
                           }
                         ]
                       },
-                      "span": 336
+                      "span": 344
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 13,
+                            "local": 16,
                             "projection": []
                           },
                           {
@@ -13041,13 +13409,13 @@
                                   {
                                     "Field": [
                                       0,
-                                      42
+                                      40
                                     ]
                                   },
                                   {
                                     "Field": [
                                       1,
-                                      82
+                                      84
                                     ]
                                   }
                                 ]
@@ -13056,39 +13424,65 @@
                           }
                         ]
                       },
-                      "span": 336
+                      "span": 344
+                    },
+                    {
+                      "kind": {
+                        "StorageLive": 3
+                      },
+                      "span": 345
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 6,
+                            "local": 4,
                             "projection": []
                           },
                           {
-                            "Use": {
-                              "Copy": {
-                                "local": 12,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      44
-                                    ]
-                                  }
-                                ]
-                              }
-                            }
+                            "Cast": [
+                              "Transmute",
+                              {
+                                "Copy": {
+                                  "local": 15,
+                                  "projection": []
+                                }
+                              },
+                              85
+                            ]
                           }
                         ]
                       },
-                      "span": 134
+                      "span": 169
                     },
                     {
                       "kind": {
-                        "StorageLive": 8
+                        "Assign": [
+                          {
+                            "local": 3,
+                            "projection": []
+                          },
+                          {
+                            "Cast": [
+                              "PtrToPtr",
+                              {
+                                "Copy": {
+                                  "local": 4,
+                                  "projection": []
+                                }
+                              },
+                              42
+                            ]
+                          }
+                        ]
+                      },
+                      "span": 345
+                    },
+                    {
+                      "kind": {
+                        "StorageLive": 9
                       },
-                      "span": 337
+                      "span": 346
                     }
                   ],
                   "terminator": {
@@ -13097,23 +13491,23 @@
                         "args": [
                           {
                             "Copy": {
-                              "local": 6,
+                              "local": 3,
                               "projection": []
                             }
                           }
                         ],
                         "destination": {
-                          "local": 7,
+                          "local": 8,
                           "projection": []
                         },
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 43,
+                              "id": 45,
                               "kind": "ZeroSized",
-                              "ty": 81
+                              "ty": 83
                             },
-                            "span": 334,
+                            "span": 342,
                             "user_ty": null
                           }
                         },
@@ -13121,22 +13515,22 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 335
+                    "span": 343
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageLive": 5
+                        "StorageLive": 7
                       },
-                      "span": 340
+                      "span": 349
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 5,
+                            "local": 7,
                             "projection": []
                           },
                           {
@@ -13152,7 +13546,7 @@
                                   {
                                     "Field": [
                                       1,
-                                      59
+                                      66
                                     ]
                                   }
                                 ]
@@ -13161,19 +13555,19 @@
                           }
                         ]
                       },
-                      "span": 340
+                      "span": 349
                     },
                     {
                       "kind": {
-                        "StorageLive": 11
+                        "StorageLive": 14
                       },
-                      "span": 135
+                      "span": 168
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 11,
+                            "local": 14,
                             "projection": []
                           },
                           {
@@ -13181,29 +13575,29 @@
                               "PtrToPtr",
                               {
                                 "Copy": {
-                                  "local": 6,
+                                  "local": 4,
                                   "projection": []
                                 }
                               },
-                              27
+                              53
                             ]
                           }
                         ]
                       },
-                      "span": 135
+                      "span": 168
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 10,
+                            "local": 13,
                             "projection": []
                           },
                           {
                             "Aggregate": [
                               {
                                 "Adt": [
-                                  14,
+                                  13,
                                   0,
                                   [
                                     {
@@ -13217,7 +13611,7 @@
                               [
                                 {
                                   "Move": {
-                                    "local": 11,
+                                    "local": 14,
                                     "projection": []
                                   }
                                 }
@@ -13226,13 +13620,13 @@
                           }
                         ]
                       },
-                      "span": 136
+                      "span": 170
                     },
                     {
                       "kind": {
-                        "StorageDead": 11
+                        "StorageDead": 14
                       },
-                      "span": 341
+                      "span": 171
                     }
                   ],
                   "terminator": {
@@ -13241,13 +13635,13 @@
                         "args": [
                           {
                             "Move": {
-                              "local": 5,
+                              "local": 7,
                               "projection": []
                             }
                           },
                           {
                             "Move": {
-                              "local": 10,
+                              "local": 13,
                               "projection": []
                             }
                           },
@@ -13259,17 +13653,17 @@
                           }
                         ],
                         "destination": {
-                          "local": 4,
+                          "local": 6,
                           "projection": []
                         },
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 44,
+                              "id": 46,
                               "kind": "ZeroSized",
-                              "ty": 83
+                              "ty": 86
                             },
-                            "span": 338,
+                            "span": 347,
                             "user_ty": null
                           }
                         },
@@ -13277,16 +13671,16 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 339
+                    "span": 348
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageDead": 5
+                        "StorageDead": 7
                       },
-                      "span": 343
+                      "span": 351
                     }
                   ],
                   "terminator": {
@@ -13295,14 +13689,98 @@
                         "target": 3
                       }
                     },
-                    "span": 342
-                  }
-                },
-                {
-                  "statements": [],
-                  "terminator": {
-                    "kind": "Return",
-                    "span": 344
+                    "span": 350
+                  }
+                },
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": "Return",
+                    "span": 352
+                  }
+                },
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": {
+                      "Call": {
+                        "args": [
+                          {
+                            "Move": {
+                              "local": 3,
+                              "projection": []
+                            }
+                          }
+                        ],
+                        "destination": {
+                          "local": 9,
+                          "projection": []
+                        },
+                        "func": {
+                          "Constant": {
+                            "const_": {
+                              "id": 47,
+                              "kind": "ZeroSized",
+                              "ty": 87
+                            },
+                            "span": 353,
+                            "user_ty": null
+                          }
+                        },
+                        "target": 5,
+                        "unwind": "Unreachable"
+                      }
+                    },
+                    "span": 354
+                  }
+                },
+                {
+                  "statements": [
+                    {
+                      "kind": {
+                        "StorageLive": 10
+                      },
+                      "span": 160
+                    },
+                    {
+                      "kind": {
+                        "Assign": [
+                          {
+                            "local": 10,
+                            "projection": []
+                          },
+                          {
+                            "NullaryOp": [
+                              "UbChecks",
+                              20
+                            ]
+                          }
+                        ]
+                      },
+                      "span": 160
+                    }
+                  ],
+                  "terminator": {
+                    "kind": {
+                      "SwitchInt": {
+                        "discr": {
+                          "Move": {
+                            "local": 10,
+                            "projection": []
+                          }
+                        },
+                        "targets": {
+                          "branches": [
+                            [
+                              0,
+                              7
+                            ]
+                          ],
+                          "otherwise": 6
+                        }
+                      }
+                    },
+                    "span": 160
                   }
                 },
                 {
@@ -13313,46 +13791,58 @@
                         "args": [
                           {
                             "Copy": {
-                              "local": 6,
+                              "local": 8,
+                              "projection": []
+                            }
+                          },
+                          {
+                            "Copy": {
+                              "local": 9,
                               "projection": []
                             }
                           }
                         ],
                         "destination": {
-                          "local": 8,
+                          "local": 11,
                           "projection": []
                         },
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 45,
+                              "id": 30,
                               "kind": "ZeroSized",
-                              "ty": 84
+                              "ty": 61
                             },
-                            "span": 345,
+                            "span": 174,
                             "user_ty": null
                           }
                         },
-                        "target": 5,
+                        "target": 7,
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 346
+                    "span": 175
                   }
                 },
                 {
                   "statements": [
                     {
                       "kind": {
-                        "StorageLive": 9
+                        "StorageDead": 10
                       },
-                      "span": 123
+                      "span": 180
+                    },
+                    {
+                      "kind": {
+                        "StorageLive": 12
+                      },
+                      "span": 181
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 9,
+                            "local": 12,
                             "projection": []
                           },
                           {
@@ -13360,16 +13850,16 @@
                               "Transmute",
                               {
                                 "Copy": {
-                                  "local": 8,
+                                  "local": 9,
                                   "projection": []
                                 }
                               },
-                              52
+                              49
                             ]
                           }
                         ]
                       },
-                      "span": 124
+                      "span": 181
                     },
                     {
                       "kind": {
@@ -13382,7 +13872,7 @@
                             "Aggregate": [
                               {
                                 "Adt": [
-                                  13,
+                                  14,
                                   0,
                                   [],
                                   null,
@@ -13392,13 +13882,13 @@
                               [
                                 {
                                   "Copy": {
-                                    "local": 7,
+                                    "local": 8,
                                     "projection": []
                                   }
                                 },
                                 {
                                   "Move": {
-                                    "local": 9,
+                                    "local": 12,
                                     "projection": []
                                   }
                                 }
@@ -13407,31 +13897,37 @@
                           }
                         ]
                       },
-                      "span": 125
+                      "span": 182
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 12
+                      },
+                      "span": 183
                     },
                     {
                       "kind": {
                         "StorageDead": 9
                       },
-                      "span": 126
+                      "span": 346
                     },
                     {
                       "kind": {
-                        "StorageDead": 8
+                        "StorageDead": 3
                       },
-                      "span": 337
+                      "span": 356
                     },
                     {
                       "kind": {
-                        "StorageLive": 3
+                        "StorageLive": 5
                       },
-                      "span": 348
+                      "span": 357
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 3,
+                            "local": 5,
                             "projection": []
                           },
                           {
@@ -13448,13 +13944,13 @@
                           }
                         ]
                       },
-                      "span": 348
+                      "span": 357
                     },
                     {
                       "kind": {
-                        "StorageDead": 3
+                        "StorageDead": 5
                       },
-                      "span": 349
+                      "span": 358
                     }
                   ],
                   "terminator": {
@@ -13462,7 +13958,7 @@
                       "SwitchInt": {
                         "discr": {
                           "Move": {
-                            "local": 7,
+                            "local": 8,
                             "projection": []
                           }
                         },
@@ -13477,83 +13973,98 @@
                         }
                       }
                     },
-                    "span": 347
+                    "span": 355
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 350,
+                  "span": 359,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 351,
-                  "ty": 47
+                  "span": 360,
+                  "ty": 45
                 },
                 {
                   "mutability": "Not",
-                  "span": 352,
+                  "span": 361,
                   "ty": 56
                 },
                 {
                   "mutability": "Mut",
-                  "span": 348,
-                  "ty": 65
+                  "span": 345,
+                  "ty": 42
+                },
+                {
+                  "mutability": "Mut",
+                  "span": 345,
+                  "ty": 85
+                },
+                {
+                  "mutability": "Mut",
+                  "span": 357,
+                  "ty": 57
                 },
                 {
                   "mutability": "Not",
-                  "span": 339,
+                  "span": 348,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 340,
-                  "ty": 51
+                  "span": 349,
+                  "ty": 63
                 },
                 {
                   "mutability": "Mut",
-                  "span": 134,
-                  "ty": 44
+                  "span": 362,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 353,
-                  "ty": 28
+                  "span": 363,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 354,
-                  "ty": 28
+                  "span": 160,
+                  "ty": 20
+                },
+                {
+                  "mutability": "Not",
+                  "span": 175,
+                  "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 123,
-                  "ty": 52
+                  "span": 181,
+                  "ty": 49
                 },
                 {
                   "mutability": "Mut",
-                  "span": 355,
-                  "ty": 58
+                  "span": 364,
+                  "ty": 65
                 },
                 {
                   "mutability": "Mut",
-                  "span": 135,
-                  "ty": 27
+                  "span": 168,
+                  "ty": 53
                 },
                 {
                   "mutability": "Not",
-                  "span": 356,
-                  "ty": 43
+                  "span": 365,
+                  "ty": 41
                 },
                 {
                   "mutability": "Not",
-                  "span": 356,
-                  "ty": 82
+                  "span": 365,
+                  "ty": 84
                 }
               ],
-              "span": 366,
+              "span": 374,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -13562,7 +14073,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 0,
-                    "span": 351
+                    "span": 360
                   },
                   "value": {
                     "Place": {
@@ -13578,20 +14089,20 @@
                       {
                         "Field": [
                           0,
-                          43
+                          41
                         ]
                       }
                     ],
-                    "ty": 42
+                    "ty": 40
                   },
                   "name": "ptr",
                   "source_info": {
                     "scope": 1,
-                    "span": 356
+                    "span": 365
                   },
                   "value": {
                     "Place": {
-                      "local": 12,
+                      "local": 15,
                       "projection": []
                     }
                   }
@@ -13603,20 +14114,20 @@
                       {
                         "Field": [
                           1,
-                          82
+                          84
                         ]
                       }
                     ],
-                    "ty": 42
+                    "ty": 40
                   },
                   "name": "ptr",
                   "source_info": {
                     "scope": 1,
-                    "span": 356
+                    "span": 365
                   },
                   "value": {
                     "Place": {
-                      "local": 13,
+                      "local": 16,
                       "projection": []
                     }
                   }
@@ -13627,7 +14138,7 @@
                   "name": "layout",
                   "source_info": {
                     "scope": 2,
-                    "span": 352
+                    "span": 361
                   },
                   "value": {
                     "Place": {
@@ -13643,20 +14154,20 @@
                       {
                         "Field": [
                           0,
-                          43
+                          41
                         ]
                       }
                     ],
-                    "ty": 42
+                    "ty": 40
                   },
                   "name": "self",
                   "source_info": {
                     "scope": 3,
-                    "span": 357
+                    "span": 366
                   },
                   "value": {
                     "Place": {
-                      "local": 12,
+                      "local": 15,
                       "projection": []
                     }
                   }
@@ -13668,35 +14179,20 @@
                       {
                         "Field": [
                           1,
-                          82
+                          84
                         ]
                       }
                     ],
-                    "ty": 42
+                    "ty": 40
                   },
                   "name": "self",
                   "source_info": {
                     "scope": 3,
-                    "span": 357
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 13,
-                      "projection": []
-                    }
-                  }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 4,
-                    "span": 155
+                    "span": 366
                   },
                   "value": {
                     "Place": {
-                      "local": 12,
+                      "local": 16,
                       "projection": []
                     }
                   }
@@ -13707,11 +14203,11 @@
                   "name": "t",
                   "source_info": {
                     "scope": 5,
-                    "span": 358
+                    "span": 367
                   },
                   "value": {
                     "Place": {
-                      "local": 6,
+                      "local": 3,
                       "projection": []
                     }
                   }
@@ -13722,11 +14218,11 @@
                   "name": "size",
                   "source_info": {
                     "scope": 6,
-                    "span": 359
+                    "span": 368
                   },
                   "value": {
                     "Place": {
-                      "local": 7,
+                      "local": 8,
                       "projection": []
                     }
                   }
@@ -13737,11 +14233,11 @@
                   "name": "align",
                   "source_info": {
                     "scope": 6,
-                    "span": 360
+                    "span": 369
                   },
                   "value": {
                     "Place": {
-                      "local": 8,
+                      "local": 9,
                       "projection": []
                     }
                   }
@@ -13752,11 +14248,11 @@
                   "name": "val",
                   "source_info": {
                     "scope": 7,
-                    "span": 361
+                    "span": 370
                   },
                   "value": {
                     "Place": {
-                      "local": 6,
+                      "local": 3,
                       "projection": []
                     }
                   }
@@ -13767,11 +14263,11 @@
                   "name": "val",
                   "source_info": {
                     "scope": 8,
-                    "span": 362
+                    "span": 371
                   },
                   "value": {
                     "Place": {
-                      "local": 6,
+                      "local": 3,
                       "projection": []
                     }
                   }
@@ -13782,11 +14278,11 @@
                   "name": "size",
                   "source_info": {
                     "scope": 9,
-                    "span": 146
+                    "span": 191
                   },
                   "value": {
                     "Place": {
-                      "local": 7,
+                      "local": 8,
                       "projection": []
                     }
                   }
@@ -13797,26 +14293,11 @@
                   "name": "align",
                   "source_info": {
                     "scope": 9,
-                    "span": 147
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 8,
-                      "projection": []
-                    }
-                  }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "align",
-                  "source_info": {
-                    "scope": 10,
-                    "span": 148
+                    "span": 192
                   },
                   "value": {
                     "Place": {
-                      "local": 8,
+                      "local": 9,
                       "projection": []
                     }
                   }
@@ -13826,12 +14307,12 @@
                   "composite": null,
                   "name": "self",
                   "source_info": {
-                    "scope": 11,
-                    "span": 190
+                    "scope": 10,
+                    "span": 157
                   },
                   "value": {
                     "Place": {
-                      "local": 3,
+                      "local": 5,
                       "projection": []
                     }
                   }
@@ -13843,20 +14324,20 @@
                       {
                         "Field": [
                           0,
-                          43
+                          41
                         ]
                       }
                     ],
-                    "ty": 42
+                    "ty": 40
                   },
                   "name": "self",
                   "source_info": {
-                    "scope": 12,
-                    "span": 363
+                    "scope": 11,
+                    "span": 372
                   },
                   "value": {
                     "Place": {
-                      "local": 12,
+                      "local": 15,
                       "projection": []
                     }
                   }
@@ -13868,50 +14349,20 @@
                       {
                         "Field": [
                           1,
-                          82
+                          84
                         ]
                       }
                     ],
-                    "ty": 42
+                    "ty": 40
                   },
                   "name": "self",
                   "source_info": {
-                    "scope": 12,
-                    "span": 363
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 13,
-                      "projection": []
-                    }
-                  }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 13,
-                    "span": 154
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 12,
-                      "projection": []
-                    }
-                  }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 14,
-                    "span": 155
+                    "scope": 11,
+                    "span": 372
                   },
                   "value": {
                     "Place": {
-                      "local": 12,
+                      "local": 16,
                       "projection": []
                     }
                   }
@@ -13923,20 +14374,20 @@
                       {
                         "Field": [
                           0,
-                          58
+                          65
                         ]
                       }
                     ],
-                    "ty": 85
+                    "ty": 88
                   },
                   "name": "unique",
                   "source_info": {
-                    "scope": 15,
-                    "span": 364
+                    "scope": 14,
+                    "span": 373
                   },
                   "value": {
                     "Place": {
-                      "local": 10,
+                      "local": 13,
                       "projection": []
                     }
                   }
@@ -13948,80 +14399,25 @@
                       {
                         "Field": [
                           1,
-                          86
+                          89
                         ]
                       }
                     ],
-                    "ty": 85
+                    "ty": 88
                   },
                   "name": "unique",
                   "source_info": {
-                    "scope": 15,
-                    "span": 364
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 46,
-                        "kind": "ZeroSized",
-                        "ty": 86
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": {
-                    "projection": [
-                      {
-                        "Field": [
-                          0,
-                          58
-                        ]
-                      }
-                    ],
-                    "ty": 85
-                  },
-                  "name": "self",
-                  "source_info": {
-                    "scope": 16,
-                    "span": 365
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 10,
-                      "projection": []
-                    }
-                  }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": {
-                    "projection": [
-                      {
-                        "Field": [
-                          1,
-                          86
-                        ]
-                      }
-                    ],
-                    "ty": 85
-                  },
-                  "name": "self",
-                  "source_info": {
-                    "scope": 16,
-                    "span": 365
+                    "scope": 14,
+                    "span": 373
                   },
                   "value": {
                     "Const": {
                       "const_": {
-                        "id": 46,
+                        "id": 48,
                         "kind": "ZeroSized",
-                        "ty": 86
+                        "ty": 89
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -14034,6 +14430,17 @@
         }
       },
       "symbol_name": "_ZN72_$LT$alloc..boxed..Box$LT$T$C$A$GT$$u20$as$u20$core..ops..drop..Drop$GT$4drop17h"
+    },
+    {
+      "details": null,
+      "mono_item_kind": {
+        "MonoItemFn": {
+          "body": [],
+          "id": 56,
+          "name": "alloc::alloc::__rust_no_alloc_shim_is_unstable"
+        }
+      },
+      "symbol_name": "__rust_no_alloc"
     }
   ]
 }
diff --git a/tests/integration/failing/defined-trait.smir.json.expected b/tests/integration/failing/defined-trait.smir.json.expected
index 239c476..e69de29 100644
--- a/tests/integration/failing/defined-trait.smir.json.expected
+++ b/tests/integration/failing/defined-trait.smir.json.expected
@@ -1,27669 +0,0 @@
-{
-  "allocs": [
-    [
-      {
-        "Memory": {
-          "align": 1,
-          "bytes": [
-            117,
-            110,
-            115,
-            97,
-            102,
-            101,
-            32,
-            112,
-            114,
-            101,
-            99,
-            111,
-            110,
-            100,
-            105,
-            116,
-            105,
-            111,
-            110,
-            40,
-            115,
-            41,
-            32,
-            118,
-            105,
-            111,
-            108,
-            97,
-            116,
-            101,
-            100,
-            58,
-            32,
-            112,
-            116,
-            114,
-            58,
-            58,
-            99,
-            111,
-            112,
-            121,
-            95,
-            110,
-            111,
-            110,
-            111,
-            118,
-            101,
-            114,
-            108,
-            97,
-            112,
-            112,
-            105,
-            110,
-            103,
-            32,
-            114,
-            101,
-            113,
-            117,
-            105,
-            114,
-            101,
-            115,
-            32,
-            116,
-            104,
-            97,
-            116,
-            32,
-            98,
-            111,
-            116,
-            104,
-            32,
-            112,
-            111,
-            105,
-            110,
-            116,
-            101,
-            114,
-            32,
-            97,
-            114,
-            103,
-            117,
-            109,
-            101,
-            110,
-            116,
-            115,
-            32,
-            97,
-            114,
-            101,
-            32,
-            97,
-            108,
-            105,
-            103,
-            110,
-            101,
-            100,
-            32,
-            97,
-            110,
-            100,
-            32,
-            110,
-            111,
-            110,
-            45,
-            110,
-            117,
-            108,
-            108,
-            32,
-            97,
-            110,
-            100,
-            32,
-            116,
-            104,
-            101,
-            32,
-            115,
-            112,
-            101,
-            99,
-            105,
-            102,
-            105,
-            101,
-            100,
-            32,
-            109,
-            101,
-            109,
-            111,
-            114,
-            121,
-            32,
-            114,
-            97,
-            110,
-            103,
-            101,
-            115,
-            32,
-            100,
-            111,
-            32,
-            110,
-            111,
-            116,
-            32,
-            111,
-            118,
-            101,
-            114,
-            108,
-            97,
-            112
-          ],
-          "mutability": "Not",
-          "provenance": {
-            "ptrs": []
-          }
-        }
-      }
-    ],
-    [
-      {
-        "Memory": {
-          "align": 8,
-          "bytes": [
-            0,
-            0,
-            0,
-            0,
-            0,
-            0,
-            0,
-            0,
-            42,
-            0,
-            0,
-            0,
-            0,
-            0,
-            0,
-            0
-          ],
-          "mutability": "Not",
-          "provenance": {
-            "ptrs": [
-              [
-                0,
-                23
-              ]
-            ]
-          }
-        }
-      }
-    ],
-    [
-      {
-        "Memory": {
-          "align": 8,
-          "bytes": [],
-          "mutability": "Not",
-          "provenance": {
-            "ptrs": []
-          }
-        }
-      }
-    ],
-    [
-      {
-        "Memory": {
-          "align": 8,
-          "bytes": [
-            0,
-            0,
-            0,
-            0,
-            0,
-            0,
-            0,
-            0,
-            42,
-            0,
-            0,
-            0,
-            0,
-            0,
-            0,
-            0
-          ],
-          "mutability": "Not",
-          "provenance": {
-            "ptrs": [
-              [
-                0,
-                24
-              ]
-            ]
-          }
-        }
-      }
-    ],
-    [
-      {
-        "Memory": {
-          "align": 1,
-          "bytes": [
-            117,
-            110,
-            115,
-            97,
-            102,
-            101,
-            32,
-            112,
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-            110,
-            110,
-            111,
-            116,
-            32,
-            111,
-            118,
-            101,
-            114,
-            102,
-            108,
-            111,
-            119
-          ],
-          "mutability": "Not",
-          "provenance": {
-            "ptrs": []
-          }
-        }
-      }
-    ],
-    [
-      {
-        "Memory": {
-          "align": 1,
-          "bytes": [
-            117,
-            110,
-            115,
-            97,
-            102,
-            101,
-            32,
-            112,
-            114,
-            101,
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-            111,
-            110,
-            100,
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-            110,
-            40,
-            115,
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-          ],
-          "id": 40,
-          "name": "<std::string::String as std::cmp::PartialEq<&str>>::eq"
-        }
-      },
-      "symbol_name": "_ZN77_$LT$alloc..string..String$u20$as$u20$core..cmp..PartialEq$LT$$RF$str$GT$$GT$2eq17h"
-    }
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-}
diff --git a/tests/integration/failing/derive-copy-struct.smir.json.expected b/tests/integration/failing/derive-copy-struct.smir.json.expected
index f1437af..479a4e4 100644
--- a/tests/integration/failing/derive-copy-struct.smir.json.expected
+++ b/tests/integration/failing/derive-copy-struct.smir.json.expected
@@ -139,7 +139,7 @@
                             "Use": {
                               "Constant": {
                                 "const_": {
-                                  "id": 12,
+                                  "id": 11,
                                   "kind": {
                                     "Allocated": {
                                       "align": 8,
@@ -159,16 +159,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 30
+                                  "ty": 29
                                 },
-                                "span": 73,
+                                "span": 69,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 73
+                      "span": 69
                     },
                     {
                       "kind": {
@@ -178,16 +178,19 @@
                             "projection": []
                           },
                           {
-                            "Len": {
-                              "local": 1,
-                              "projection": [
-                                "Deref"
-                              ]
-                            }
+                            "UnaryOp": [
+                              "PtrMetadata",
+                              {
+                                "Copy": {
+                                  "local": 1,
+                                  "projection": []
+                                }
+                              }
+                            ]
                           }
                         ]
                       },
-                      "span": 72
+                      "span": 68
                     },
                     {
                       "kind": {
@@ -215,7 +218,7 @@
                           }
                         ]
                       },
-                      "span": 72
+                      "span": 68
                     }
                   ],
                   "terminator": {
@@ -248,7 +251,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 72
+                    "span": 68
                   }
                 },
                 {
@@ -275,43 +278,43 @@
                           }
                         ]
                       },
-                      "span": 72
+                      "span": 68
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 74
+                    "span": 70
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 75,
-                  "ty": 31
+                  "span": 71,
+                  "ty": 30
                 },
                 {
                   "mutability": "Not",
-                  "span": 76,
-                  "ty": 26
+                  "span": 72,
+                  "ty": 25
                 },
                 {
                   "mutability": "Not",
-                  "span": 73,
-                  "ty": 30
+                  "span": 69,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 72,
-                  "ty": 30
+                  "span": 68,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 72,
-                  "ty": 32
+                  "span": 68,
+                  "ty": 31
                 }
               ],
-              "span": 77,
+              "span": 73,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -320,7 +323,7 @@
                   "name": "containers",
                   "source_info": {
                     "scope": 0,
-                    "span": 76
+                    "span": 72
                   },
                   "value": {
                     "Place": {
@@ -386,9 +389,9 @@
                                           }
                                         }
                                       },
-                                      "ty": 34
+                                      "ty": 33
                                     },
-                                    "span": 79,
+                                    "span": 75,
                                     "user_ty": null
                                   }
                                 }
@@ -397,7 +400,7 @@
                           }
                         ]
                       },
-                      "span": 80
+                      "span": 76
                     },
                     {
                       "kind": {
@@ -437,9 +440,9 @@
                                           }
                                         }
                                       },
-                                      "ty": 34
+                                      "ty": 33
                                     },
-                                    "span": 81,
+                                    "span": 77,
                                     "user_ty": null
                                   }
                                 }
@@ -448,7 +451,7 @@
                           }
                         ]
                       },
-                      "span": 82
+                      "span": 78
                     },
                     {
                       "kind": {
@@ -460,7 +463,7 @@
                           {
                             "Aggregate": [
                               {
-                                "Array": 31
+                                "Array": 30
                               },
                               [
                                 {
@@ -480,7 +483,7 @@
                           }
                         ]
                       },
-                      "span": 83
+                      "span": 79
                     },
                     {
                       "kind": {
@@ -503,7 +506,7 @@
                           }
                         ]
                       },
-                      "span": 84
+                      "span": 80
                     }
                   ],
                   "terminator": {
@@ -519,11 +522,11 @@
                           {
                             "Constant": {
                               "const_": {
-                                "id": 11,
+                                "id": 13,
                                 "kind": "ZeroSized",
-                                "ty": 28
+                                "ty": 27
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -535,11 +538,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 13,
+                              "id": 12,
                               "kind": "ZeroSized",
-                              "ty": 33
+                              "ty": 32
                             },
-                            "span": 78,
+                            "span": 74,
                             "user_ty": null
                           }
                         },
@@ -547,7 +550,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 78
+                    "span": 74
                   }
                 },
                 {
@@ -572,9 +575,9 @@
                             "const_": {
                               "id": 16,
                               "kind": "ZeroSized",
-                              "ty": 35
+                              "ty": 34
                             },
-                            "span": 85,
+                            "span": 81,
                             "user_ty": null
                           }
                         },
@@ -582,7 +585,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 86
+                    "span": 82
                   }
                 },
                 {
@@ -602,7 +605,7 @@
                                   {
                                     "Field": [
                                       0,
-                                      34
+                                      33
                                     ]
                                   }
                                 ]
@@ -611,7 +614,7 @@
                           }
                         ]
                       },
-                      "span": 88
+                      "span": 84
                     }
                   ],
                   "terminator": {
@@ -634,14 +637,14 @@
                         }
                       }
                     },
-                    "span": 87
+                    "span": 83
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 89
+                    "span": 85
                   }
                 },
                 {
@@ -686,9 +689,9 @@
                                     }
                                   }
                                 },
-                                "ty": 37
+                                "ty": 36
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -702,9 +705,9 @@
                             "const_": {
                               "id": 17,
                               "kind": "ZeroSized",
-                              "ty": 36
+                              "ty": 35
                             },
-                            "span": 90,
+                            "span": 86,
                             "user_ty": null
                           }
                         },
@@ -712,58 +715,58 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 90
+                    "span": 86
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 91,
+                  "span": 87,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 92,
-                  "ty": 31
+                  "span": 88,
+                  "ty": 30
                 },
                 {
                   "mutability": "Not",
-                  "span": 93,
-                  "ty": 31
+                  "span": 89,
+                  "ty": 30
                 },
                 {
                   "mutability": "Not",
-                  "span": 94,
-                  "ty": 38
+                  "span": 90,
+                  "ty": 37
                 },
                 {
                   "mutability": "Not",
-                  "span": 95,
-                  "ty": 31
+                  "span": 91,
+                  "ty": 30
                 },
                 {
                   "mutability": "Not",
-                  "span": 78,
-                  "ty": 26
+                  "span": 74,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 84,
-                  "ty": 27
+                  "span": 80,
+                  "ty": 26
                 },
                 {
                   "mutability": "Mut",
-                  "span": 88,
-                  "ty": 34
+                  "span": 84,
+                  "ty": 33
                 },
                 {
                   "mutability": "Mut",
-                  "span": 90,
-                  "ty": 39
+                  "span": 86,
+                  "ty": 38
                 }
               ],
-              "span": 96,
+              "span": 92,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -772,7 +775,7 @@
                   "name": "con1",
                   "source_info": {
                     "scope": 1,
-                    "span": 92
+                    "span": 88
                   },
                   "value": {
                     "Place": {
@@ -787,7 +790,7 @@
                   "name": "con2",
                   "source_info": {
                     "scope": 2,
-                    "span": 93
+                    "span": 89
                   },
                   "value": {
                     "Place": {
@@ -802,7 +805,7 @@
                   "name": "cons",
                   "source_info": {
                     "scope": 3,
-                    "span": 94
+                    "span": 90
                   },
                   "value": {
                     "Place": {
@@ -817,7 +820,7 @@
                   "name": "first",
                   "source_info": {
                     "scope": 4,
-                    "span": 95
+                    "span": 91
                   },
                   "value": {
                     "Place": {
@@ -857,12 +860,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -947,7 +944,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -958,12 +955,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -1023,7 +1014,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -1052,51 +1043,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -1110,7 +1101,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -1120,7 +1111,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1129,7 +1120,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -1144,7 +1135,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -1159,7 +1150,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -1174,7 +1165,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -1189,7 +1180,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -1221,19 +1212,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -1260,7 +1251,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -1285,7 +1276,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -1293,7 +1284,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -1302,7 +1293,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -1327,7 +1318,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -1335,7 +1326,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -1344,13 +1335,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1359,42 +1350,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -1418,7 +1373,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1432,7 +1387,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -1441,37 +1396,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -1481,27 +1430,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -1514,7 +1458,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -1537,7 +1481,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -1545,21 +1489,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 30
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 5,
-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -1597,7 +1526,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1611,9 +1540,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -1621,7 +1550,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -1637,7 +1566,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1651,9 +1580,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -1661,35 +1590,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 36
+                    "span": 33
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 37,
+                  "span": 34,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 38,
+                  "span": 35,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 39,
+                  "span": 36,
                   "ty": 1
                 }
               ],
-              "span": 42,
+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1698,7 +1627,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -1713,7 +1642,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -1728,7 +1657,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -1737,7 +1666,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1789,9 +1718,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1799,35 +1728,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 22
+                  "span": 40,
+                  "ty": 21
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1838,6 +1767,73 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
     },
+    {
+      "details": null,
+      "mono_item_kind": {
+        "MonoItemFn": {
+          "body": [
+            {
+              "arg_count": 2,
+              "blocks": [
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": {
+                      "Call": {
+                        "args": [],
+                        "destination": {
+                          "local": 0,
+                          "projection": []
+                        },
+                        "func": {
+                          "Move": {
+                            "local": 1,
+                            "projection": []
+                          }
+                        },
+                        "target": 1,
+                        "unwind": "Continue"
+                      }
+                    },
+                    "span": 40
+                  }
+                },
+                {
+                  "statements": [],
+                  "terminator": {
+                    "kind": "Return",
+                    "span": 40
+                  }
+                }
+              ],
+              "locals": [
+                {
+                  "mutability": "Mut",
+                  "span": 40,
+                  "ty": 1
+                },
+                {
+                  "mutability": "Not",
+                  "span": 40,
+                  "ty": 7
+                },
+                {
+                  "mutability": "Not",
+                  "span": 40,
+                  "ty": 1
+                }
+              ],
+              "span": 40,
+              "spread_arg": 2,
+              "var_debug_info": []
+            }
+          ],
+          "id": 3,
+          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
+        }
+      },
+      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
+    },
     {
       "details": null,
       "mono_item_kind": {
@@ -1873,7 +1869,7 @@
                           }
                         ]
                       },
-                      "span": 43
+                      "span": 40
                     }
                   ],
                   "terminator": {
@@ -1902,9 +1898,9 @@
                             "const_": {
                               "id": 7,
                               "kind": "ZeroSized",
-                              "ty": 23
+                              "ty": 22
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1914,7 +1910,7 @@
                         }
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1930,14 +1926,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
@@ -1953,40 +1949,40 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 43
+                    "span": 40
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 43,
+                  "span": 40,
                   "ty": 16
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 12
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
+                  "span": 40,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 43,
-                  "ty": 24
+                  "span": 40,
+                  "ty": 23
                 }
               ],
-              "span": 43,
+              "span": 40,
               "spread_arg": 2,
               "var_debug_info": []
             }
@@ -1997,73 +1993,6 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
     },
-    {
-      "details": null,
-      "mono_item_kind": {
-        "MonoItemFn": {
-          "body": [
-            {
-              "arg_count": 2,
-              "blocks": [
-                {
-                  "statements": [],
-                  "terminator": {
-                    "kind": {
-                      "Call": {
-                        "args": [],
-                        "destination": {
-                          "local": 0,
-                          "projection": []
-                        },
-                        "func": {
-                          "Move": {
-                            "local": 1,
-                            "projection": []
-                          }
-                        },
-                        "target": 1,
-                        "unwind": "Continue"
-                      }
-                    },
-                    "span": 43
-                  }
-                },
-                {
-                  "statements": [],
-                  "terminator": {
-                    "kind": "Return",
-                    "span": 43
-                  }
-                }
-              ],
-              "locals": [
-                {
-                  "mutability": "Mut",
-                  "span": 43,
-                  "ty": 1
-                },
-                {
-                  "mutability": "Not",
-                  "span": 43,
-                  "ty": 7
-                },
-                {
-                  "mutability": "Not",
-                  "span": 43,
-                  "ty": 1
-                }
-              ],
-              "span": 43,
-              "spread_arg": 2,
-              "var_debug_info": []
-            }
-          ],
-          "id": 3,
-          "name": "<fn() as std::ops::FnOnce<()>>::call_once"
-        }
-      },
-      "symbol_name": "_ZN4core3ops8function6FnOnce9call_once17h"
-    },
     {
       "details": null,
       "mono_item_kind": {
@@ -2076,23 +2005,23 @@
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 44
+                    "span": 41
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 44,
+                  "span": 41,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 44,
-                  "ty": 22
+                  "span": 41,
+                  "ty": 21
                 }
               ],
-              "span": 44,
+              "span": 41,
               "spread_arg": null,
               "var_debug_info": []
             }
@@ -2131,12 +2060,12 @@
                                   "projection": []
                                 }
                               },
-                              26
+                              25
                             ]
                           }
                         ]
                       },
-                      "span": 47
+                      "span": 44
                     }
                   ],
                   "terminator": {
@@ -2165,9 +2094,9 @@
                             "const_": {
                               "id": 8,
                               "kind": "ZeroSized",
-                              "ty": 25
+                              "ty": 24
                             },
-                            "span": 45,
+                            "span": 42,
                             "user_ty": null
                           }
                         },
@@ -2175,40 +2104,40 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 46
+                    "span": 43
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 48
+                    "span": 45
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 49,
-                  "ty": 26
+                  "span": 46,
+                  "ty": 25
                 },
                 {
                   "mutability": "Not",
-                  "span": 50,
-                  "ty": 27
+                  "span": 47,
+                  "ty": 26
                 },
                 {
                   "mutability": "Not",
-                  "span": 51,
-                  "ty": 28
+                  "span": 48,
+                  "ty": 27
                 },
                 {
                   "mutability": "Not",
-                  "span": 52,
-                  "ty": 26
+                  "span": 44,
+                  "ty": 25
                 }
               ],
-              "span": 53,
+              "span": 49,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -2217,7 +2146,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 0,
-                    "span": 50
+                    "span": 47
                   },
                   "value": {
                     "Place": {
@@ -2232,7 +2161,7 @@
                   "name": "index",
                   "source_info": {
                     "scope": 0,
-                    "span": 51
+                    "span": 48
                   },
                   "value": {
                     "Place": {
@@ -2286,9 +2215,9 @@
                             "const_": {
                               "id": 9,
                               "kind": "ZeroSized",
-                              "ty": 29
+                              "ty": 28
                             },
-                            "span": 54,
+                            "span": 50,
                             "user_ty": null
                           }
                         },
@@ -2296,35 +2225,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 55
+                    "span": 51
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 56
+                    "span": 52
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 57,
-                  "ty": 26
+                  "span": 53,
+                  "ty": 25
                 },
                 {
                   "mutability": "Not",
-                  "span": 58,
-                  "ty": 26
+                  "span": 54,
+                  "ty": 25
                 },
                 {
                   "mutability": "Not",
-                  "span": 59,
-                  "ty": 28
+                  "span": 55,
+                  "ty": 27
                 }
               ],
-              "span": 60,
+              "span": 56,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -2333,7 +2262,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 0,
-                    "span": 58
+                    "span": 54
                   },
                   "value": {
                     "Place": {
@@ -2348,7 +2277,7 @@
                   "name": "index",
                   "source_info": {
                     "scope": 0,
-                    "span": 59
+                    "span": 55
                   },
                   "value": {
                     "Place": {
@@ -2402,58 +2331,37 @@
                                   },
                                   "ty": 17
                                 },
-                                "span": 62,
+                                "span": 58,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 62
+                      "span": 58
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 61
+                    "span": 57
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 63,
+                  "span": 59,
                   "ty": 17
                 },
                 {
                   "mutability": "Not",
-                  "span": 64,
+                  "span": 60,
                   "ty": 1
                 }
               ],
-              "span": 65,
+              "span": 61,
               "spread_arg": null,
-              "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 64
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 4,
-                        "kind": "ZeroSized",
-                        "ty": 1
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
           "id": 7,
@@ -2489,62 +2397,42 @@
                           }
                         ]
                       },
-                      "span": 67
+                      "span": 63
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 66
+                    "span": 62
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 68,
-                  "ty": 26
+                  "span": 64,
+                  "ty": 25
                 },
                 {
                   "mutability": "Not",
-                  "span": 69,
-                  "ty": 28
+                  "span": 65,
+                  "ty": 27
                 },
                 {
                   "mutability": "Not",
-                  "span": 70,
-                  "ty": 26
+                  "span": 66,
+                  "ty": 25
                 }
               ],
-              "span": 71,
+              "span": 67,
               "spread_arg": null,
               "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 69
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 11,
-                        "kind": "ZeroSized",
-                        "ty": 28
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                },
                 {
                   "argument_index": 2,
                   "composite": null,
                   "name": "slice",
                   "source_info": {
                     "scope": 0,
-                    "span": 70
+                    "span": 66
                   },
                   "value": {
                     "Place": {
diff --git a/tests/integration/failing/generic.smir.json.expected b/tests/integration/failing/generic.smir.json.expected
index b294055..d186217 100644
--- a/tests/integration/failing/generic.smir.json.expected
+++ b/tests/integration/failing/generic.smir.json.expected
@@ -213,12 +213,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -303,7 +297,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -314,12 +308,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -379,7 +367,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -408,51 +396,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -466,7 +454,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -476,7 +464,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -485,7 +473,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -500,7 +488,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -515,7 +503,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -530,7 +518,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -545,7 +533,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -577,19 +565,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -616,7 +604,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -641,7 +629,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -649,7 +637,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -658,7 +646,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -683,7 +671,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -691,7 +679,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -700,13 +688,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -715,42 +703,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -774,7 +726,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -788,7 +740,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -797,37 +749,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -837,27 +783,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -870,7 +811,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -893,7 +834,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -901,21 +842,6 @@
                       "projection": []
                     }
                   }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 2,
-                    "span": 30
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 5,
-                      "projection": []
-                    }
-                  }
                 }
               ]
             }
@@ -953,7 +879,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -967,9 +893,9 @@
                             "const_": {
                               "id": 3,
                               "kind": "ZeroSized",
-                              "ty": 19
+                              "ty": 18
                             },
-                            "span": 31,
+                            "span": 28,
                             "user_ty": null
                           }
                         },
@@ -977,7 +903,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 33
+                    "span": 30
                   }
                 },
                 {
@@ -993,7 +919,7 @@
                                 "kind": "ZeroSized",
                                 "ty": 1
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -1007,9 +933,9 @@
                             "const_": {
                               "id": 5,
                               "kind": "ZeroSized",
-                              "ty": 20
+                              "ty": 19
                             },
-                            "span": 34,
+                            "span": 31,
                             "user_ty": null
                           }
                         },
@@ -1017,35 +943,35 @@
                         "unwind": "Unreachable"
                       }
                     },
-                    "span": 35
+                    "span": 32
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 36
+                    "span": 33
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 37,
+                  "span": 34,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 38,
+                  "span": 35,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 39,
+                  "span": 36,
                   "ty": 1
                 }
               ],
-              "span": 42,
+              "span": 39,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1054,7 +980,7 @@
                   "name": "f",
                   "source_info": {
                     "scope": 0,
-                    "span": 38
+                    "span": 35
                   },
                   "value": {
                     "Place": {
@@ -1069,7 +995,7 @@
                   "name": "result",
                   "source_info": {
                     "scope": 1,
-                    "span": 40
+                    "span": 37
                   },
                   "value": {
                     "Place": {
@@ -1084,7 +1010,7 @@
                   "name": "dummy",
                   "source_info": {
                     "scope": 2,
-                    "span": 41
+                    "span": 38
                   },
                   "value": {
                     "Const": {
@@ -1093,7 +1019,7 @@
                         "kind": "ZeroSized",
                         "ty": 1
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -1145,9 +1071,9 @@
                             "const_": {
                               "id": 6,
                               "kind": "ZeroSized",
-                              "ty": 21
+                              "ty": 20
                             },
-                            "span": 43,
+                            "span": 40,
                             "user_ty": null
                           }
                         },
@@ -1155,35 +1081,35 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 43
+                    "span": 40
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
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@@ -1194,6 +1120,73 @@
       },
       "symbol_name": "_ZN4core3ops8function6FnOnce40call_once$u7b$$u7b$vtable.shim$u7d$$u7d$17h"
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@@ -1258,9 +1251,9 @@
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                               "id": 7,
                               "kind": "ZeroSized",
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@@ -1270,7 +1263,7 @@
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@@ -1286,14 +1279,14 @@
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@@ -1309,40 +1302,40 @@
                         "unwind": "Terminate"
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@@ -1432,23 +1358,23 @@
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@@ -1487,12 +1413,12 @@
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@@ -1519,11 +1445,11 @@
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                             },
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@@ -1531,40 +1457,40 @@
                         "unwind": "Continue"
                       }
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@@ -1634,12 +1560,12 @@
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@@ -1666,11 +1592,11 @@
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@@ -1678,40 +1604,40 @@
                         "unwind": "Continue"
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@@ -1720,7 +1646,7 @@
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@@ -1735,7 +1661,7 @@
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@@ -1748,7 +1674,7 @@
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@@ -1787,11 +1713,11 @@
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@@ -1799,35 +1725,35 @@
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@@ -1851,7 +1777,7 @@
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@@ -1903,11 +1829,11 @@
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@@ -1915,35 +1841,35 @@
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@@ -1952,7 +1878,7 @@
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@@ -1967,7 +1893,7 @@
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@@ -2021,58 +1947,37 @@
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@@ -2099,16 +2004,19 @@
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-                              "projection": [
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-                              ]
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+                            "UnaryOp": [
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@@ -2136,7 +2044,7 @@
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@@ -2169,7 +2077,7 @@
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@@ -2200,43 +2108,43 @@
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@@ -2245,7 +2153,7 @@
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@@ -2260,7 +2168,7 @@
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@@ -2296,16 +2204,19 @@
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-                            "Len": {
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-                              "projection": [
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+                            "UnaryOp": [
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@@ -2333,7 +2244,7 @@
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@@ -2366,7 +2277,7 @@
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@@ -2397,43 +2308,43 @@
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@@ -2442,7 +2353,7 @@
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@@ -2457,7 +2368,7 @@
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@@ -2519,7 +2430,7 @@
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@@ -2544,7 +2455,7 @@
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@@ -2569,7 +2480,7 @@
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@@ -2594,7 +2505,7 @@
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@@ -2619,7 +2530,7 @@
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@@ -2628,7 +2539,7 @@
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@@ -2640,7 +2551,7 @@
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+                                "Array": 38
                               },
                               [
                                 {
@@ -2662,9 +2573,9 @@
                                           }
                                         }
                                       },
-                                      "ty": 39
+                                      "ty": 38
                                     },
-                                    "span": 86,
+                                    "span": 82,
                                     "user_ty": null
                                   }
                                 },
@@ -2687,9 +2598,9 @@
                                           }
                                         }
                                       },
-                                      "ty": 39
+                                      "ty": 38
                                     },
-                                    "span": 87,
+                                    "span": 83,
                                     "user_ty": null
                                   }
                                 },
@@ -2712,9 +2623,9 @@
                                           }
                                         }
                                       },
-                                      "ty": 39
+                                      "ty": 38
                                     },
-                                    "span": 88,
+                                    "span": 84,
                                     "user_ty": null
                                   }
                                 },
@@ -2737,9 +2648,9 @@
                                           }
                                         }
                                       },
-                                      "ty": 39
+                                      "ty": 38
                                     },
-                                    "span": 89,
+                                    "span": 85,
                                     "user_ty": null
                                   }
                                 },
@@ -2762,9 +2673,9 @@
                                           }
                                         }
                                       },
-                                      "ty": 39
+                                      "ty": 38
                                     },
-                                    "span": 90,
+                                    "span": 86,
                                     "user_ty": null
                                   }
                                 }
@@ -2773,7 +2684,7 @@
                           }
                         ]
                       },
-                      "span": 91
+                      "span": 87
                     },
                     {
                       "kind": {
@@ -2796,7 +2707,7 @@
                           }
                         ]
                       },
-                      "span": 92
+                      "span": 88
                     }
                   ],
                   "terminator": {
@@ -2812,11 +2723,11 @@
                           {
                             "Constant": {
                               "const_": {
-                                "id": 13,
+                                "id": 14,
                                 "kind": "ZeroSized",
-                                "ty": 28
+                                "ty": 27
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -2828,11 +2739,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 14,
+                              "id": 13,
                               "kind": "ZeroSized",
-                              "ty": 38
+                              "ty": 37
                             },
-                            "span": 79,
+                            "span": 75,
                             "user_ty": null
                           }
                         },
@@ -2840,7 +2751,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 79
+                    "span": 75
                   }
                 },
                 {
@@ -2878,9 +2789,9 @@
                                     }
                                   }
                                 },
-                                "ty": 35
+                                "ty": 34
                               },
-                              "span": 94,
+                              "span": 90,
                               "user_ty": null
                             }
                           }
@@ -2894,9 +2805,9 @@
                             "const_": {
                               "id": 25,
                               "kind": "ZeroSized",
-                              "ty": 40
+                              "ty": 39
                             },
-                            "span": 93,
+                            "span": 89,
                             "user_ty": null
                           }
                         },
@@ -2904,7 +2815,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 95
+                    "span": 91
                   }
                 },
                 {
@@ -2930,7 +2841,7 @@
                           }
                         ]
                       },
-                      "span": 97
+                      "span": 93
                     }
                   ],
                   "terminator": {
@@ -2946,11 +2857,11 @@
                           {
                             "Constant": {
                               "const_": {
-                                "id": 13,
+                                "id": 14,
                                 "kind": "ZeroSized",
-                                "ty": 28
+                                "ty": 27
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -2964,9 +2875,9 @@
                             "const_": {
                               "id": 27,
                               "kind": "ZeroSized",
-                              "ty": 41
+                              "ty": 40
                             },
-                            "span": 96,
+                            "span": 92,
                             "user_ty": null
                           }
                         },
@@ -2974,7 +2885,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 96
+                    "span": 92
                   }
                 },
                 {
@@ -3012,9 +2923,9 @@
                                     }
                                   }
                                 },
-                                "ty": 35
+                                "ty": 34
                               },
-                              "span": 99,
+                              "span": 95,
                               "user_ty": null
                             }
                           }
@@ -3028,9 +2939,9 @@
                             "const_": {
                               "id": 28,
                               "kind": "ZeroSized",
-                              "ty": 42
+                              "ty": 41
                             },
-                            "span": 98,
+                            "span": 94,
                             "user_ty": null
                           }
                         },
@@ -3038,7 +2949,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 100
+                    "span": 96
                   }
                 },
                 {
@@ -3062,7 +2973,7 @@
                           }
                         ]
                       },
-                      "span": 102
+                      "span": 98
                     }
                   ],
                   "terminator": {
@@ -3085,7 +2996,7 @@
                         }
                       }
                     },
-                    "span": 101
+                    "span": 97
                   }
                 },
                 {
@@ -3109,7 +3020,7 @@
                           }
                         ]
                       },
-                      "span": 104
+                      "span": 100
                     }
                   ],
                   "terminator": {
@@ -3132,7 +3043,7 @@
                         }
                       }
                     },
-                    "span": 103
+                    "span": 99
                   }
                 },
                 {
@@ -3177,9 +3088,9 @@
                                     }
                                   }
                                 },
-                                "ty": 44
+                                "ty": 43
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -3193,9 +3104,9 @@
                             "const_": {
                               "id": 29,
                               "kind": "ZeroSized",
-                              "ty": 43
+                              "ty": 42
                             },
-                            "span": 105,
+                            "span": 101,
                             "user_ty": null
                           }
                         },
@@ -3203,14 +3114,14 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 105
+                    "span": 101
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 106
+                    "span": 102
                   }
                 },
                 {
@@ -3255,9 +3166,9 @@
                                     }
                                   }
                                 },
-                                "ty": 44
+                                "ty": 43
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -3271,9 +3182,9 @@
                             "const_": {
                               "id": 29,
                               "kind": "ZeroSized",
-                              "ty": 43
+                              "ty": 42
                             },
-                            "span": 107,
+                            "span": 103,
                             "user_ty": null
                           }
                         },
@@ -3281,78 +3192,78 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 107
+                    "span": 103
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 108,
+                  "span": 104,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 109,
-                  "ty": 45
+                  "span": 105,
+                  "ty": 44
                 },
                 {
                   "mutability": "Not",
-                  "span": 110,
-                  "ty": 46
+                  "span": 106,
+                  "ty": 45
                 },
                 {
                   "mutability": "Not",
-                  "span": 95,
-                  "ty": 37
+                  "span": 91,
+                  "ty": 33
                 },
                 {
                   "mutability": "Not",
-                  "span": 79,
-                  "ty": 26
+                  "span": 75,
+                  "ty": 25
                 },
                 {
                   "mutability": "Mut",
-                  "span": 92,
-                  "ty": 27
+                  "span": 88,
+                  "ty": 26
                 },
                 {
                   "mutability": "Not",
-                  "span": 100,
-                  "ty": 34
+                  "span": 96,
+                  "ty": 36
                 },
                 {
                   "mutability": "Not",
-                  "span": 96,
-                  "ty": 30
+                  "span": 92,
+                  "ty": 29
                 },
                 {
                   "mutability": "Mut",
-                  "span": 97,
-                  "ty": 31
+                  "span": 93,
+                  "ty": 30
                 },
                 {
                   "mutability": "Mut",
-                  "span": 102,
+                  "span": 98,
                   "ty": 16
                 },
                 {
                   "mutability": "Mut",
-                  "span": 105,
-                  "ty": 47
+                  "span": 101,
+                  "ty": 46
                 },
                 {
                   "mutability": "Mut",
-                  "span": 104,
-                  "ty": 39
+                  "span": 100,
+                  "ty": 38
                 },
                 {
                   "mutability": "Mut",
-                  "span": 107,
-                  "ty": 47
+                  "span": 103,
+                  "ty": 46
                 }
               ],
-              "span": 113,
+              "span": 109,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -3361,7 +3272,7 @@
                   "name": "numbers",
                   "source_info": {
                     "scope": 1,
-                    "span": 109
+                    "span": 105
                   },
                   "value": {
                     "Place": {
@@ -3376,7 +3287,7 @@
                   "name": "letters",
                   "source_info": {
                     "scope": 2,
-                    "span": 110
+                    "span": 106
                   },
                   "value": {
                     "Place": {
@@ -3391,7 +3302,7 @@
                   "name": "middle_number",
                   "source_info": {
                     "scope": 3,
-                    "span": 111
+                    "span": 107
                   },
                   "value": {
                     "Place": {
@@ -3406,7 +3317,7 @@
                   "name": "middle_letter",
                   "source_info": {
                     "scope": 4,
-                    "span": 112
+                    "span": 108
                   },
                   "value": {
                     "Place": {
@@ -3451,62 +3362,42 @@
                           }
                         ]
                       },
-                      "span": 67
+                      "span": 63
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 66
+                    "span": 62
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 68,
-                  "ty": 26
+                  "span": 64,
+                  "ty": 29
                 },
                 {
                   "mutability": "Not",
-                  "span": 69,
-                  "ty": 28
+                  "span": 65,
+                  "ty": 27
                 },
                 {
                   "mutability": "Not",
-                  "span": 70,
-                  "ty": 26
+                  "span": 66,
+                  "ty": 29
                 }
               ],
-              "span": 71,
+              "span": 67,
               "spread_arg": null,
               "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 69
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 13,
-                        "kind": "ZeroSized",
-                        "ty": 28
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                },
                 {
                   "argument_index": 2,
                   "composite": null,
                   "name": "slice",
                   "source_info": {
                     "scope": 0,
-                    "span": 70
+                    "span": 66
                   },
                   "value": {
                     "Place": {
@@ -3519,7 +3410,7 @@
             }
           ],
           "id": 8,
-          "name": "<std::ops::RangeFull as std::slice::SliceIndex<[i32]>>::index"
+          "name": "<std::ops::RangeFull as std::slice::SliceIndex<[char]>>::index"
         }
       },
       "symbol_name": "_ZN97_$LT$core..ops..range..RangeFull$u20$as$u20$core..slice..index..SliceIndex$LT$$u5b$T$u5d$$GT$$GT$5index17h"
@@ -3551,62 +3442,42 @@
                           }
                         ]
                       },
-                      "span": 67
+                      "span": 63
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 66
+                    "span": 62
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 68,
-                  "ty": 30
+                  "span": 64,
+                  "ty": 25
                 },
                 {
                   "mutability": "Not",
-                  "span": 69,
-                  "ty": 28
+                  "span": 65,
+                  "ty": 27
                 },
                 {
                   "mutability": "Not",
-                  "span": 70,
-                  "ty": 30
+                  "span": 66,
+                  "ty": 25
                 }
               ],
-              "span": 71,
+              "span": 67,
               "spread_arg": null,
               "var_debug_info": [
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 0,
-                    "span": 69
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 13,
-                        "kind": "ZeroSized",
-                        "ty": 28
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                },
                 {
                   "argument_index": 2,
                   "composite": null,
                   "name": "slice",
                   "source_info": {
                     "scope": 0,
-                    "span": 70
+                    "span": 66
                   },
                   "value": {
                     "Place": {
@@ -3619,7 +3490,7 @@
             }
           ],
           "id": 8,
-          "name": "<std::ops::RangeFull as std::slice::SliceIndex<[char]>>::index"
+          "name": "<std::ops::RangeFull as std::slice::SliceIndex<[i32]>>::index"
         }
       },
       "symbol_name": "_ZN97_$LT$core..ops..range..RangeFull$u20$as$u20$core..slice..index..SliceIndex$LT$$u5b$T$u5d$$GT$$GT$5index17h"
diff --git a/tests/integration/failing/panic_example.smir.json.expected b/tests/integration/failing/panic_example.smir.json.expected
index b107652..6e1e773 100644
--- a/tests/integration/failing/panic_example.smir.json.expected
+++ b/tests/integration/failing/panic_example.smir.json.expected
@@ -5,116 +5,20 @@
         "Memory": {
           "align": 1,
           "bytes": [
-            117,
-            110,
-            115,
-            97,
-            102,
-            101,
-            32,
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-            116,
             101,
-            100,
-            58,
-            32,
+            120,
             112,
-            116,
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-            116,
             105,
-            108,
-            101,
-            32,
-            114,
-            101,
-            113,
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+            99,
             105,
-            114,
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           ],
           "mutability": "Not",
           "provenance": {
@@ -122,519 +26,52 @@
           }
         }
       }
-    ],
+    ]
+  ],
+  "functions": [
     [
       {
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-            "ptrs": [
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-                0,
-                12
-              ]
-            ]
-          }
-        }
+        "NormalSym": "_ZN3std2rt19lang_start_internal17h"
       }
     ],
     [
       {
-        "Memory": {
-          "align": 8,
-          "bytes": [],
-          "mutability": "Not",
-          "provenance": {
-            "ptrs": []
-          }
-        }
+        "NormalSym": "_ZN3std3sys9backtrace28__rust_begin_short_backtrace17h"
       }
     ],
     [
       {
-        "Memory": {
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-          "bytes": [
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-          "provenance": {
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-              [
-                0,
-                13
-              ]
-            ]
-          }
-        }
+        "NormalSym": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
       }
     ],
     [
       {
-        "Memory": {
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-            108
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-          "mutability": "Not",
-          "provenance": {
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-        }
+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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+        "IntrinsicSym": "black_box"
       }
     ],
     [
       {
-        "Memory": {
-          "align": 1,
-          "bytes": [],
-          "mutability": "Not",
-          "provenance": {
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+        "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
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     ],
     [
       {
-        "Static": 115
+        "NormalSym": "_ZN3std2rt10lang_start28_$u7b$$u7b$closure$u7d$$u7d$17h"
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-            105,
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-          ],
-          "mutability": "Not",
-          "provenance": {
-            "ptrs": []
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-        }
+        "NormalSym": "_ZN3std9panicking11begin_panic17h"
       }
     ],
     [
       {
-        "Memory": {
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@@ -656,7 +93,7 @@
                           {
                             "Constant": {
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-                                "id": 54,
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                                 "kind": {
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@@ -683,15 +120,15 @@
                                       "ptrs": [
                                         [
                                           0,
-                                          8
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-                                "ty": 32
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@@ -703,11 +140,11 @@
                         "func": {
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                               "kind": "ZeroSized",
-                              "ty": 112
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@@ -715,28 +152,28 @@
                         "unwind": "Continue"
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@@ -748,197 +185,177 @@
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-                                  "projection": []
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+                              "projection": []
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                       "kind": {
@@ -948,108 +365,103 @@
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@@ -1059,12 +471,12 @@
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@@ -1074,12 +486,12 @@
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@@ -1088,17 +500,32 @@
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@@ -1107,10 +534,10 @@
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           ],
           "id": 0,
-          "name": "<&str as std::any::Any>::type_id"
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         }
       },
-      "symbol_name": "_ZN36_$LT$T$u20$as$u20$core..any..Any$GT$7type_id17h"
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@@ -1118,162 +545,111 @@
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+                            "Move": {
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+                          "projection": []
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+                              "kind": "ZeroSized",
+                              "ty": 13
+                            },
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+                            "user_ty": null
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+                        "unwind": "Continue"
+                      }
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-                              "projection": []
-                            }
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                               "projection": []
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-                              "projection": []
-                            }
                           }
                         ],
                         "destination": {
-                          "local": 5,
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@@ -1281,46 +657,55 @@
                             "const_": {
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                               "kind": "ZeroSized",
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+                              "ty": 14
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                             "span": 18,
                             "user_ty": null
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-                        "target": 1,
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                         "unwind": "Continue"
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                   "statements": [
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                       "kind": {
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                           {
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                             "projection": []
                           },
                           {
                             "Use": {
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                                   {
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@@ -1864,18 +1038,15 @@
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-      "symbol_name": "_ZN91_$LT$std..panicking..begin_panic..Payload$LT$A$GT$$u20$as$u20$core..panic..PanicPayload$GT$8take_box17h"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
     }
   ]
 }
diff --git a/tests/integration/failing/std-string-empty.smir.json.expected b/tests/integration/failing/std-string-empty.smir.json.expected
index 37d1426..dd2d670 100644
--- a/tests/integration/failing/std-string-empty.smir.json.expected
+++ b/tests/integration/failing/std-string-empty.smir.json.expected
@@ -3,85 +3,83 @@
     [
       {
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+          "align": 8,
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+            0,
+            42,
+            0,
+            0,
+            0,
+            0,
+            0,
+            0,
+            0
           ],
           "mutability": "Not",
+          "provenance": {
+            "ptrs": [
+              [
+                0,
+                7
+              ]
+            ]
+          }
+        }
+      }
+    ],
+    [
+      {
+        "Memory": {
+          "align": 8,
+          "bytes": [],
+          "mutability": "Not",
           "provenance": {
             "ptrs": []
           }
         }
       }
     ],
+    [
+      {
+        "Memory": {
+          "align": 8,
+          "bytes": [
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+          "mutability": "Not",
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+              [
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+                10
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+        }
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     [
       {
         "Memory": {
@@ -260,33 +258,54 @@
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         "Memory": {
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+            32,
+            110,
+            111,
+            116,
+            32,
+            97,
+            32,
+            112,
+            111,
+            119,
+            101,
+            114,
+            45,
+            111,
+            102,
+            45,
+            116,
+            119,
+            111
           ],
           "mutability": "Not",
           "provenance": {
-            "ptrs": [
-              [
-                0,
-                13
-              ]
-            ]
+            "ptrs": []
           }
         }
       }
@@ -294,8 +313,34 @@
     [
       {
         "Memory": {
-          "align": 8,
-          "bytes": [],
+          "align": 1,
+          "bytes": [
+            97,
+            115,
+            115,
+            101,
+            114,
+            116,
+            105,
+            111,
+            110,
+            32,
+            102,
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+            105,
+            108,
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+            100,
+            58,
+            32,
+            97,
+            32,
+            61,
+            61,
+            32,
+            34,
+            34
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           "mutability": "Not",
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@@ -306,114 +351,8 @@
     [
       {
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-    [
-      {
-        "Memory": {
-          "align": 1,
-          "bytes": [],
+          "align": 1,
+          "bytes": [],
           "mutability": "Not",
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@@ -432,116 +371,6 @@
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@@ -570,11 +399,6 @@
         "IntrinsicSym": "black_box"
       }
     ],
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-      }
-    ],
     [
       {
         "NormalSym": "_ZN4core3ops8function6FnOnce9call_once17h"
@@ -602,47 +426,27 @@
     ],
     [
       {
-        "NormalSym": "_ZN4core9panicking9panic_fmt17h"
-      }
-    ],
-    [
-      {
-        "NormalSym": "_ZN4core3num23_$LT$impl$u20$usize$GT$13unchecked_mul18precondition_check17h"
-      }
-    ],
-    [
-      {
-        "NormalSym": ""
-      }
-    ],
-    [
-      {
-        "NoOpSym": ""
-      }
-    ],
-    [
-      {
-        "IntrinsicSym": "size_of_val"
+        "NormalSym": "_ZN4core9panicking14panic_nounwind17h"
       }
     ],
     [
       {
-        "IntrinsicSym": "compare_bytes"
+        "NormalSym": "_ZN4core9panicking9panic_fmt17h"
       }
     ],
     [
       {
-        "NormalSym": "_ZN5alloc7raw_vec19RawVec$LT$T$C$A$GT$14current_memory17h"
+        "NormalSym": "_ZN4core5slice3raw14from_raw_parts18precondition_check17h"
       }
     ],
     [
       {
-        "NormalSym": "_ZN63_$LT$alloc..alloc..Global$u20$as$u20$core..alloc..Allocator$GT$10deallocate17h"
+        "NormalSym": "_ZN4core3str6traits99_$LT$impl$u20$core..slice..index..SliceIndex$LT$str$GT$$u20$for$u20$core..ops..range..RangeFull$GT$5index17h"
       }
     ],
     [
       {
-        "NormalSym": "_ZN4core5slice3raw14from_raw_parts18precondition_check17h"
+        "NormalSym": "_ZN74_$LT$alloc..string..String$u20$as$u20$core..ops..index..Index$LT$I$GT$$GT$5index17h"
       }
     ],
     [
@@ -667,22 +471,22 @@
     ],
     [
       {
-        "NormalSym": "_ZN4core3ptr42drop_in_place$LT$alloc..string..String$GT$17h"
+        "NoOpSym": ""
       }
     ],
     [
       {
-        "NormalSym": "_ZN4core3ptr46drop_in_place$LT$alloc..vec..Vec$LT$u8$GT$$GT$17h"
+        "NormalSym": "_ZN4core3ptr53drop_in_place$LT$alloc..raw_vec..RawVec$LT$u8$GT$$GT$17h"
       }
     ],
     [
       {
-        "NoOpSym": ""
+        "NormalSym": "_ZN4core3ptr42drop_in_place$LT$alloc..string..String$GT$17h"
       }
     ],
     [
       {
-        "NormalSym": "_ZN4core3ptr53drop_in_place$LT$alloc..raw_vec..RawVec$LT$u8$GT$$GT$17h"
+        "NormalSym": "_ZN4core3ptr46drop_in_place$LT$alloc..vec..Vec$LT$u8$GT$$GT$17h"
       }
     ]
   ],
@@ -708,11 +512,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 40,
+                              "id": 29,
                               "kind": "ZeroSized",
-                              "ty": 86
+                              "ty": 68
                             },
-                            "span": 349,
+                            "span": 195,
                             "user_ty": null
                           }
                         },
@@ -720,7 +524,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 350
+                    "span": 196
                   }
                 },
                 {
@@ -746,7 +550,7 @@
                           }
                         ]
                       },
-                      "span": 352
+                      "span": 198
                     },
                     {
                       "kind": {
@@ -759,7 +563,7 @@
                             "Use": {
                               "Constant": {
                                 "const_": {
-                                  "id": 42,
+                                  "id": 31,
                                   "kind": {
                                     "Allocated": {
                                       "align": 8,
@@ -778,22 +582,22 @@
                                         "ptrs": [
                                           [
                                             0,
-                                            5
+                                            3
                                           ]
                                         ]
                                       }
                                     }
                                   },
-                                  "ty": 82
+                                  "ty": 66
                                 },
-                                "span": 353,
+                                "span": 199,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 353
+                      "span": 199
                     }
                   ],
                   "terminator": {
@@ -820,11 +624,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 41,
+                              "id": 30,
                               "kind": "ZeroSized",
-                              "ty": 87
+                              "ty": 69
                             },
-                            "span": 351,
+                            "span": 197,
                             "user_ty": null
                           }
                         },
@@ -834,7 +638,7 @@
                         }
                       }
                     },
-                    "span": 351
+                    "span": 197
                   }
                 },
                 {
@@ -859,7 +663,7 @@
                         }
                       }
                     },
-                    "span": 351
+                    "span": 197
                   }
                 },
                 {
@@ -875,7 +679,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 354
+                    "span": 200
                   }
                 },
                 {
@@ -887,7 +691,7 @@
                           {
                             "Constant": {
                               "const_": {
-                                "id": 44,
+                                "id": 33,
                                 "kind": {
                                   "Allocated": {
                                     "align": 8,
@@ -914,15 +718,15 @@
                                       "ptrs": [
                                         [
                                           0,
-                                          6
+                                          4
                                         ]
                                       ]
                                     }
                                   }
                                 },
-                                "ty": 24
+                                "ty": 33
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -934,11 +738,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 43,
+                              "id": 32,
                               "kind": "ZeroSized",
-                              "ty": 88
+                              "ty": 70
                             },
-                            "span": 355,
+                            "span": 201,
                             "user_ty": null
                           }
                         },
@@ -948,14 +752,14 @@
                         }
                       }
                     },
-                    "span": 355
+                    "span": 201
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 356
+                    "span": 202
                   }
                 },
                 {
@@ -971,50 +775,50 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 354
+                    "span": 200
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Resume",
-                    "span": 357
+                    "span": 203
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 358,
+                  "span": 204,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 359,
-                  "ty": 54
+                  "span": 205,
+                  "ty": 51
                 },
                 {
                   "mutability": "Mut",
-                  "span": 351,
-                  "ty": 22
+                  "span": 197,
+                  "ty": 46
                 },
                 {
                   "mutability": "Mut",
-                  "span": 352,
-                  "ty": 81
+                  "span": 198,
+                  "ty": 60
                 },
                 {
                   "mutability": "Mut",
-                  "span": 353,
-                  "ty": 82
+                  "span": 199,
+                  "ty": 66
                 },
                 {
                   "mutability": "Mut",
-                  "span": 355,
-                  "ty": 26
+                  "span": 201,
+                  "ty": 47
                 }
               ],
-              "span": 357,
+              "span": 203,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1023,7 +827,7 @@
                   "name": "a",
                   "source_info": {
                     "scope": 1,
-                    "span": 359
+                    "span": 205
                   },
                   "value": {
                     "Place": {
@@ -1050,7 +854,7 @@
                             "Use": {
                               "Constant": {
                                 "const_": {
-                                  "id": 45,
+                                  "id": 34,
                                   "kind": {
                                     "Allocated": {
                                       "align": 8,
@@ -1077,22 +881,22 @@
                                         "ptrs": [
                                           [
                                             0,
-                                            7
+                                            5
                                           ]
                                         ]
                                       }
                                     }
                                   },
-                                  "ty": 24
+                                  "ty": 33
                                 },
-                                "span": 353,
+                                "span": 199,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 353
+                      "span": 199
                     },
                     {
                       "kind": {
@@ -1115,33 +919,33 @@
                           }
                         ]
                       },
-                      "span": 353
+                      "span": 199
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 353
+                    "span": 199
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 353,
-                  "ty": 82
+                  "span": 199,
+                  "ty": 66
                 },
                 {
                   "mutability": "Mut",
-                  "span": 353,
-                  "ty": 24
+                  "span": 199,
+                  "ty": 33
                 }
               ],
-              "span": 353,
+              "span": 199,
               "spread_arg": null,
               "var_debug_info": []
             }
           ],
-          "id": 22,
+          "id": 15,
           "name": "main"
         }
       },
@@ -1169,12 +973,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -1259,7 +1057,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -1270,12 +1068,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -1335,7 +1127,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -1364,51 +1156,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -1422,7 +1214,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -1432,7 +1224,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -1441,7 +1233,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -1456,7 +1248,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -1471,7 +1263,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -1486,7 +1278,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -1501,7 +1293,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -1533,19 +1325,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -1572,7 +1364,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -1597,7 +1389,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -1605,7 +1397,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -1614,7 +1406,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -1639,7 +1431,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -1647,7 +1439,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -1656,13 +1448,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1671,42 +1463,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -1730,7 +1486,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -1744,7 +1500,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -1753,37 +1509,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -1793,27 +1543,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
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@@ -1826,7 +1571,7 @@
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@@ -2626,25 +2198,21 @@
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@@ -3683,9 +2938,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 25
+                                    "ty": 37
                                   },
-                                  "span": 85,
+                                  "span": 66,
                                   "user_ty": null
                                 }
                               }
@@ -3693,67 +2948,158 @@
                           }
                         ]
                       },
-                      "span": 84
+                      "span": 67
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 16,
+                            "local": 5,
                             "projection": []
                           },
                           {
-                            "BinaryOp": [
-                              "BitAnd",
+                            "UnaryOp": [
+                              "Not",
                               {
-                                "Copy": {
-                                  "local": 10,
+                                "Move": {
+                                  "local": 9,
                                   "projection": []
                                 }
-                              },
+                              }
+                            ]
+                          }
+                        ]
+                      },
+                      "span": 68
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 9
+                      },
+                      "span": 69
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 13
+                      },
+                      "span": 52
+                    }
+                  ],
+                  "terminator": {
+                    "kind": {
+                      "SwitchInt": {
+                        "discr": {
+                          "Move": {
+                            "local": 5,
+                            "projection": []
+                          }
+                        },
+                        "targets": {
+                          "branches": [
+                            [
+                              0,
+                              4
+                            ]
+                          ],
+                          "otherwise": 1
+                        }
+                      }
+                    },
+                    "span": 50
+                  }
+                },
+                {
+                  "statements": [
+                    {
+                      "kind": {
+                        "StorageDead": 12
+                      },
+                      "span": 64
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 13
+                      },
+                      "span": 52
+                    }
+                  ],
+                  "terminator": {
+                    "kind": {
+                      "Goto": {
+                        "target": 4
+                      }
+                    },
+                    "span": 50
+                  }
+                },
+                {
+                  "statements": [
+                    {
+                      "kind": {
+                        "StorageDead": 15
+                      },
+                      "span": 70
+                    },
+                    {
+                      "kind": {
+                        "StorageLive": 12
+                      },
+                      "span": 71
+                    },
+                    {
+                      "kind": {
+                        "Assign": [
+                          {
+                            "local": 13,
+                            "projection": []
+                          },
+                          {
+                            "Cast": [
+                              "Transmute",
                               {
-                                "Move": {
-                                  "local": 17,
+                                "Copy": {
+                                  "local": 1,
                                   "projection": []
                                 }
-                              }
+                              },
+                              37
                             ]
                           }
                         ]
                       },
-                      "span": 83
+                      "span": 72
                     },
                     {
                       "kind": {
-                        "StorageDead": 17
+                        "StorageLive": 14
                       },
-                      "span": 86
+                      "span": 73
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 5,
+                            "local": 14,
                             "projection": []
                           },
                           {
                             "BinaryOp": [
-                              "Eq",
+                              "Sub",
                               {
-                                "Move": {
-                                  "local": 16,
+                                "Copy": {
+                                  "local": 3,
                                   "projection": []
                                 }
                               },
                               {
                                 "Constant": {
                                   "const_": {
-                                    "id": 12,
+                                    "id": 14,
                                     "kind": {
                                       "Allocated": {
                                         "align": 8,
                                         "bytes": [
-                                          0,
+                                          1,
                                           0,
                                           0,
                                           0,
@@ -3768,9 +3114,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 25
+                                    "ty": 37
                                   },
-                                  "span": 87,
+                                  "span": 74,
                                   "user_ty": null
                                 }
                               }
@@ -3778,19 +3124,41 @@
                           }
                         ]
                       },
-                      "span": 88
+                      "span": 73
                     },
                     {
                       "kind": {
-                        "StorageDead": 16
+                        "Assign": [
+                          {
+                            "local": 12,
+                            "projection": []
+                          },
+                          {
+                            "BinaryOp": [
+                              "BitAnd",
+                              {
+                                "Copy": {
+                                  "local": 13,
+                                  "projection": []
+                                }
+                              },
+                              {
+                                "Move": {
+                                  "local": 14,
+                                  "projection": []
+                                }
+                              }
+                            ]
+                          }
+                        ]
                       },
-                      "span": 87
+                      "span": 71
                     },
                     {
                       "kind": {
-                        "StorageDead": 10
+                        "StorageDead": 14
                       },
-                      "span": 64
+                      "span": 75
                     }
                   ],
                   "terminator": {
@@ -3798,7 +3166,7 @@
                       "SwitchInt": {
                         "discr": {
                           "Move": {
-                            "local": 5,
+                            "local": 12,
                             "projection": []
                           }
                         },
@@ -3806,10 +3174,10 @@
                           "branches": [
                             [
                               0,
-                              4
+                              6
                             ]
                           ],
-                          "otherwise": 1
+                          "otherwise": 7
                         }
                       }
                     },
@@ -3820,27 +3188,27 @@
                   "statements": [
                     {
                       "kind": {
-                        "StorageDead": 13
+                        "StorageDead": 15
                       },
-                      "span": 82
+                      "span": 70
                     },
                     {
                       "kind": {
-                        "StorageLive": 12
+                        "StorageLive": 11
                       },
-                      "span": 91
+                      "span": 78
                     },
                     {
                       "kind": {
-                        "StorageLive": 14
+                        "StorageLive": 16
                       },
-                      "span": 92
+                      "span": 79
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 14,
+                            "local": 16,
                             "projection": []
                           },
                           {
@@ -3851,7 +3219,7 @@
                               {
                                 "Constant": {
                                   "const_": {
-                                    "id": 17,
+                                    "id": 16,
                                     "kind": {
                                       "Allocated": {
                                         "align": 8,
@@ -3870,36 +3238,36 @@
                                           "ptrs": [
                                             [
                                               0,
-                                              2
+                                              1
                                             ]
                                           ]
                                         }
                                       }
                                     },
-                                    "ty": 45
+                                    "ty": 40
                                   },
-                                  "span": 32,
+                                  "span": 80,
                                   "user_ty": null
                                 }
                               },
-                              46
+                              41
                             ]
                           }
                         ]
                       },
-                      "span": 92
+                      "span": 79
                     },
                     {
                       "kind": {
-                        "StorageLive": 15
+                        "StorageLive": 17
                       },
-                      "span": 93
+                      "span": 81
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 15,
+                            "local": 17,
                             "projection": []
                           },
                           {
@@ -3910,7 +3278,7 @@
                               {
                                 "Constant": {
                                   "const_": {
-                                    "id": 18,
+                                    "id": 17,
                                     "kind": {
                                       "Allocated": {
                                         "align": 8,
@@ -3929,37 +3297,37 @@
                                           "ptrs": [
                                             [
                                               0,
-                                              3
+                                              2
                                             ]
                                           ]
                                         }
                                       }
                                     },
-                                    "ty": 47
+                                    "ty": 42
                                   },
-                                  "span": 32,
+                                  "span": 81,
                                   "user_ty": null
                                 }
                               },
-                              48
+                              43
                             ]
                           }
                         ]
                       },
-                      "span": 93
+                      "span": 81
                     },
                     {
                       "kind": {
                         "Assign": [
                           {
-                            "local": 12,
+                            "local": 11,
                             "projection": []
                           },
                           {
                             "Aggregate": [
                               {
                                 "Adt": [
-                                  8,
+                                  7,
                                   0,
                                   [
                                     {
@@ -3975,14 +3343,14 @@
                               [
                                 {
                                   "Move": {
-                                    "local": 14,
+                                    "local": 16,
                                     "projection": []
                                   }
                                 },
                                 {
                                   "Constant": {
                                     "const_": {
-                                      "id": 19,
+                                      "id": 18,
                                       "kind": {
                                         "Allocated": {
                                           "align": 8,
@@ -4010,15 +3378,15 @@
                                           }
                                         }
                                       },
-                                      "ty": 49
+                                      "ty": 44
                                     },
-                                    "span": 32,
+                                    "span": 29,
                                     "user_ty": null
                                   }
                                 },
                                 {
                                   "Move": {
-                                    "local": 15,
+                                    "local": 17,
                                     "projection": []
                                   }
                                 }
@@ -4027,19 +3395,19 @@
                           }
                         ]
                       },
-                      "span": 94
+                      "span": 82
                     },
                     {
                       "kind": {
-                        "StorageDead": 15
+                        "StorageDead": 17
                       },
-                      "span": 95
+                      "span": 83
                     },
                     {
                       "kind": {
-                        "StorageDead": 14
+                        "StorageDead": 16
                       },
-                      "span": 95
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                     }
                   ],
                   "terminator": {
@@ -4048,23 +3416,23 @@
                         "args": [
                           {
                             "Move": {
-                              "local": 12,
+                              "local": 11,
                               "projection": []
                             }
                           }
                         ],
                         "destination": {
-                          "local": 11,
+                          "local": 10,
                           "projection": []
                         },
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 16,
+                              "id": 15,
                               "kind": "ZeroSized",
-                              "ty": 44
+                              "ty": 39
                             },
-                            "span": 89,
+                            "span": 76,
                             "user_ty": null
                           }
                         },
@@ -4072,7 +3440,7 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 90
+                    "span": 77
                   }
                 },
                 {
@@ -4082,7 +3450,7 @@
                       "SwitchInt": {
                         "discr": {
                           "Move": {
-                            "local": 13,
+                            "local": 15,
                             "projection": []
                           }
                         },
@@ -4097,7 +3465,7 @@
                         }
                       }
                     },
-                    "span": 82
+                    "span": 70
                   }
                 },
                 {
@@ -4113,7 +3481,7 @@
                             "Use": {
                               "Constant": {
                                 "const_": {
-                                  "id": 20,
+                                  "id": 19,
                                   "kind": {
                                     "Allocated": {
                                       "align": 8,
@@ -4133,16 +3501,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 25
+                                  "ty": 37
                                 },
-                                "span": 97,
+                                "span": 85,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 97
+                      "span": 85
                     }
                   ],
                   "terminator": {
@@ -4151,7 +3519,7 @@
                         "target": 14
                       }
                     },
-                    "span": 96
+                    "span": 84
                   }
                 },
                 {
@@ -4170,7 +3538,7 @@
                           "DivisionByZero": {
                             "Constant": {
                               "const_": {
-                                "id": 21,
+                                "id": 20,
                                 "kind": {
                                   "Allocated": {
                                     "align": 8,
@@ -4190,9 +3558,9 @@
                                     }
                                   }
                                 },
-                                "ty": 25
+                                "ty": 37
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -4201,7 +3569,7 @@
                         "unwind": "Terminate"
                       }
                     },
-                    "span": 98
+                    "span": 86
                   }
                 },
                 {
@@ -4219,7 +3587,7 @@
                               {
                                 "Constant": {
                                   "const_": {
-                                    "id": 21,
+                                    "id": 20,
                                     "kind": {
                                       "Allocated": {
                                         "align": 8,
@@ -4239,9 +3607,9 @@
                                         }
                                       }
                                     },
-                                    "ty": 25
+                                    "ty": 37
                                   },
-                                  "span": 32,
+                                  "span": 29,
                                   "user_ty": null
                                 }
                               },
@@ -4255,7 +3623,7 @@
                           }
                         ]
                       },
-                      "span": 98
+                      "span": 86
                     }
                   ],
                   "terminator": {
@@ -4264,7 +3632,7 @@
                         "target": 14
                       }
                     },
-                    "span": 96
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                   }
                 },
                 {
@@ -4273,7 +3641,7 @@
                       "kind": {
                         "StorageLive": 20
                       },
-                      "span": 99
+                      "span": 87
                     },
                     {
                       "kind": {
@@ -4292,7 +3660,7 @@
                           }
                         ]
                       },
-                      "span": 99
+                      "span": 87
                     },
                     {
                       "kind": {
@@ -4320,25 +3688,25 @@
                           }
                         ]
                       },
-                      "span": 100
+                      "span": 88
                     },
                     {
                       "kind": {
                         "StorageDead": 20
                       },
-                      "span": 101
+                      "span": 89
                     },
                     {
                       "kind": {
                         "StorageDead": 18
                       },
-                      "span": 102
+                      "span": 90
                     },
                     {
                       "kind": {
                         "StorageDead": 19
                       },
-                      "span": 71
+                      "span": 56
                     }
                   ],
                   "terminator": {
@@ -4361,118 +3729,118 @@
                         }
                       }
                     },
-                    "span": 71
+                    "span": 56
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 103,
+                  "span": 91,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 104,
-                  "ty": 50
+                  "span": 92,
+                  "ty": 45
                 },
                 {
                   "mutability": "Not",
-                  "span": 104,
-                  "ty": 25
+                  "span": 92,
+                  "ty": 37
                 },
                 {
                   "mutability": "Not",
-                  "span": 104,
-                  "ty": 25
+                  "span": 92,
+                  "ty": 37
                 },
                 {
                   "mutability": "Not",
-                  "span": 104,
-                  "ty": 25
+                  "span": 92,
+                  "ty": 37
                 },
                 {
                   "mutability": "Mut",
-                  "span": 64,
-                  "ty": 22
+                  "span": 50,
+                  "ty": 46
                 },
                 {
                   "mutability": "Mut",
-                  "span": 65,
-                  "ty": 41
+                  "span": 51,
+                  "ty": 36
                 },
                 {
                   "mutability": "Mut",
-                  "span": 71,
-                  "ty": 22
+                  "span": 56,
+                  "ty": 46
                 },
                 {
                   "mutability": "Not",
-                  "span": 78,
-                  "ty": 26
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 67,
-                  "ty": 42
+                  "span": 63,
+                  "ty": 47
                 },
                 {
                   "mutability": "Mut",
-                  "span": 105,
-                  "ty": 25
+                  "span": 65,
+                  "ty": 46
                 },
                 {
                   "mutability": "Not",
-                  "span": 90,
-                  "ty": 26
+                  "span": 77,
+                  "ty": 47
                 },
                 {
                   "mutability": "Mut",
-                  "span": 91,
-                  "ty": 51
+                  "span": 78,
+                  "ty": 48
                 },
                 {
                   "mutability": "Mut",
-                  "span": 81,
-                  "ty": 52
+                  "span": 71,
+                  "ty": 37
                 },
                 {
                   "mutability": "Mut",
-                  "span": 92,
-                  "ty": 46
+                  "span": 93,
+                  "ty": 37
                 },
                 {
                   "mutability": "Mut",
-                  "span": 93,
-                  "ty": 48
+                  "span": 73,
+                  "ty": 37
                 },
                 {
                   "mutability": "Mut",
-                  "span": 83,
-                  "ty": 25
+                  "span": 53,
+                  "ty": 49
                 },
                 {
                   "mutability": "Mut",
-                  "span": 84,
-                  "ty": 25
+                  "span": 79,
+                  "ty": 41
+                },
+                {
+                  "mutability": "Mut",
+                  "span": 81,
+                  "ty": 43
                 },
                 {
                   "mutability": "Not",
-                  "span": 72,
-                  "ty": 25
+                  "span": 57,
+                  "ty": 37
                 },
                 {
                   "mutability": "Mut",
-                  "span": 69,
-                  "ty": 22
+                  "span": 54,
+                  "ty": 46
                 },
                 {
                   "mutability": "Mut",
-                  "span": 99,
-                  "ty": 25
+                  "span": 87,
+                  "ty": 37
                 }
               ],
-              "span": 122,
+              "span": 109,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -4481,7 +3849,7 @@
                   "name": "data",
                   "source_info": {
                     "scope": 0,
-                    "span": 104
+                    "span": 92
                   },
                   "value": {
                     "Place": {
@@ -4496,7 +3864,7 @@
                   "name": "size",
                   "source_info": {
                     "scope": 0,
-                    "span": 104
+                    "span": 92
                   },
                   "value": {
                     "Place": {
@@ -4511,7 +3879,7 @@
                   "name": "align",
                   "source_info": {
                     "scope": 0,
-                    "span": 104
+                    "span": 92
                   },
                   "value": {
                     "Place": {
@@ -4526,7 +3894,7 @@
                   "name": "len",
                   "source_info": {
                     "scope": 0,
-                    "span": 104
+                    "span": 92
                   },
                   "value": {
                     "Place": {
@@ -4541,7 +3909,7 @@
                   "name": "ptr",
                   "source_info": {
                     "scope": 1,
-                    "span": 106
+                    "span": 94
                   },
                   "value": {
                     "Place": {
@@ -4556,7 +3924,7 @@
                   "name": "align",
                   "source_info": {
                     "scope": 1,
-                    "span": 107
+                    "span": 95
                   },
                   "value": {
                     "Place": {
@@ -4566,17 +3934,33 @@
                   }
                 },
                 {
-                  "argument_index": 1,
+                  "argument_index": 3,
                   "composite": null,
-                  "name": "self",
+                  "name": "is_zst",
                   "source_info": {
-                    "scope": 2,
-                    "span": 108
+                    "scope": 1,
+                    "span": 96
                   },
                   "value": {
-                    "Place": {
-                      "local": 6,
-                      "projection": []
+                    "Const": {
+                      "const_": {
+                        "id": 21,
+                        "kind": {
+                          "Allocated": {
+                            "align": 1,
+                            "bytes": [
+                              0
+                            ],
+                            "mutability": "Mut",
+                            "provenance": {
+                              "ptrs": []
+                            }
+                          }
+                        },
+                        "ty": 46
+                      },
+                      "span": 97,
+                      "user_ty": null
                     }
                   }
                 },
@@ -4585,43 +3969,59 @@
                   "composite": null,
                   "name": "ptr",
                   "source_info": {
-                    "scope": 4,
-                    "span": 109
+                    "scope": 2,
+                    "span": 98
                   },
                   "value": {
                     "Place": {
-                      "local": 9,
+                      "local": 6,
                       "projection": []
                     }
                   }
                 },
                 {
-                  "argument_index": 1,
+                  "argument_index": 2,
                   "composite": null,
-                  "name": "self",
+                  "name": "align",
                   "source_info": {
-                    "scope": 5,
-                    "span": 110
+                    "scope": 2,
+                    "span": 98
                   },
                   "value": {
                     "Place": {
-                      "local": 9,
+                      "local": 3,
                       "projection": []
                     }
                   }
                 },
                 {
-                  "argument_index": 1,
+                  "argument_index": 3,
                   "composite": null,
-                  "name": "self",
+                  "name": "is_zst",
                   "source_info": {
-                    "scope": 6,
-                    "span": 111
+                    "scope": 2,
+                    "span": 98
                   },
                   "value": {
-                    "Place": {
-                      "local": 9,
-                      "projection": []
+                    "Const": {
+                      "const_": {
+                        "id": 21,
+                        "kind": {
+                          "Allocated": {
+                            "align": 1,
+                            "bytes": [
+                              0
+                            ],
+                            "mutability": "Mut",
+                            "provenance": {
+                              "ptrs": []
+                            }
+                          }
+                        },
+                        "ty": 46
+                      },
+                      "span": 97,
+                      "user_ty": null
                     }
                   }
                 },
@@ -4630,8 +4030,8 @@
                   "composite": null,
                   "name": "self",
                   "source_info": {
-                    "scope": 7,
-                    "span": 112
+                    "scope": 3,
+                    "span": 99
                   },
                   "value": {
                     "Place": {
@@ -4645,8 +4045,8 @@
                   "composite": null,
                   "name": "align",
                   "source_info": {
-                    "scope": 7,
-                    "span": 113
+                    "scope": 3,
+                    "span": 100
                   },
                   "value": {
                     "Place": {
@@ -4660,8 +4060,8 @@
                   "composite": null,
                   "name": "self",
                   "source_info": {
-                    "scope": 8,
-                    "span": 114
+                    "scope": 4,
+                    "span": 101
                   },
                   "value": {
                     "Place": {
@@ -4675,8 +4075,8 @@
                   "composite": null,
                   "name": "self",
                   "source_info": {
-                    "scope": 9,
-                    "span": 115
+                    "scope": 5,
+                    "span": 102
                   },
                   "value": {
                     "Place": {
@@ -4690,8 +4090,23 @@
                   "composite": null,
                   "name": "self",
                   "source_info": {
-                    "scope": 10,
-                    "span": 111
+                    "scope": 6,
+                    "span": 103
+                  },
+                  "value": {
+                    "Place": {
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+                      "projection": []
+                    }
+                  }
+                },
+                {
+                  "argument_index": 1,
+                  "composite": null,
+                  "name": "self",
+                  "source_info": {
+                    "scope": 7,
+                    "span": 104
                   },
                   "value": {
                     "Place": {
@@ -4705,13 +4120,13 @@
                   "composite": null,
                   "name": "pieces",
                   "source_info": {
-                    "scope": 11,
-                    "span": 116
+                    "scope": 8,
+                    "span": 105
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                     {
                       "kind": {
@@ -9137,6 +4732,64 @@
                             "local": 8,
                             "projection": []
                           },
+                          {
+                            "Cast": [
+                              "Transmute",
+                              {
+                                "Copy": {
+                                  "local": 9,
+                                  "projection": []
+                                }
+                              },
+                              55
+                            ]
+                          }
+                        ]
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+                    },
+                    {
+                      "kind": {
+                        "Assign": [
+                          {
+                            "local": 6,
+                            "projection": []
+                          },
+                          {
+                            "Cast": [
+                              "PtrToPtr",
+                              {
+                                "Copy": {
+                                  "local": 8,
+                                  "projection": []
+                                }
+                              },
+                              56
+                            ]
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+                        ]
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+                    {
+                      "kind": {
+                        "Assign": [
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+                            "local": 7,
+                            "projection": []
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                           {
                             "Use": {
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@@ -9146,13 +4799,13 @@
                                   {
                                     "Field": [
                                       0,
-                                      32
+                                      24
                                     ]
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                                   {
                                     "Field": [
                                       1,
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+                                      37
                                     ]
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@@ -9161,30 +4814,30 @@
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                       "kind": {
                         "Assign": [
                           {
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                           {
                             "NullaryOp": [
                               "UbChecks",
-                              22
+                              46
                             ]
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@@ -9192,7 +4845,7 @@
                       "SwitchInt": {
                         "discr": {
                           "Move": {
-                            "local": 11,
+                            "local": 13,
                             "projection": []
                           }
                         },
@@ -9200,29 +4853,36 @@
                           "branches": [
                             [
                               0,
-                              3
+                              4
                             ]
                           ],
-                          "otherwise": 1
+                          "otherwise": 2
                         }
                       }
                     },
-                    "span": 291
+                    "span": 123
+                  }
+                },
+                {
+                  "statements": [],
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                   }
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                 {
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                       "kind": {
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                           {
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+                            "local": 15,
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                           },
                           {
@@ -9230,16 +4890,16 @@
                               "PtrToPtr",
                               {
                                 "Copy": {
-                                  "local": 7,
+                                  "local": 8,
                                   "projection": []
                                 }
                               },
-                              50
+                              45
                             ]
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                         ]
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@@ -9248,14 +4908,14 @@
                         "args": [
                           {
                             "Move": {
-                              "local": 13,
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                           {
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@@ -9275,16 +4935,16 @@
                                     }
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                               },
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                           {
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@@ -9304,92 +4964,98 @@
                                     }
                                   }
                                 },
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                               },
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                           },
                           {
                             "Copy": {
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                           }
                         ],
                         "destination": {
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                           "projection": []
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                               "kind": "ZeroSized",
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                             },
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                         "unwind": "Unreachable"
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                     },
                     {
                       "kind": {
                         "Assign": [
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                           {
                             "Aggregate": [
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                                   "Not"
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                               [
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                                   "Copy": {
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@@ -9398,25 +5064,13 @@
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@@ -9426,7 +5080,7 @@
                               },
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                               {
-                                "local": 14,
+                                "local": 16,
                                 "projection": [
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@@ -9435,93 +5089,43 @@
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@@ -9533,87 +5137,18 @@
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@@ -9621,14 +5156,14 @@
                       "Call": {
                         "args": [
                           {
-                            "Copy": {
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+                            "Move": {
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                               "projection": []
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                           },
                           {
-                            "Copy": {
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+                            "Move": {
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@@ -9640,152 +5175,110 @@
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@@ -9794,7 +5287,7 @@
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@@ -9806,14 +5299,44 @@
                 {
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                   "composite": null,
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@@ -9823,47 +5346,42 @@
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                 {
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@@ -9871,29 +5389,29 @@
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@@ -9901,10 +5419,10 @@
                 {
                   "argument_index": 1,
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@@ -9916,224 +5434,369 @@
                 {
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                       "projection": []
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                   }
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+          "name": "<std::string::String as std::ops::Index<std::ops::RangeFull>>::index"
+        }
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+      "symbol_name": "_ZN74_$LT$alloc..string..String$u20$as$u20$core..ops..index..Index$LT$I$GT$$GT$5index17h"
+    },
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+                      "span": 176
+                    },
+                    {
+                      "kind": {
+                        "StorageLive": 8
+                      },
+                      "span": 176
+                    },
+                    {
+                      "kind": {
+                        "StorageLive": 5
+                      },
+                      "span": 177
+                    },
+                    {
+                      "kind": {
+                        "Assign": [
+                          {
+                            "local": 6,
+                            "projection": []
+                          },
+                          {
+                            "Cast": [
+                              "Transmute",
+                              {
+                                "Copy": {
+                                  "local": 3,
+                                  "projection": []
+                                }
+                              },
+                              61
+                            ]
+                          }
+                        ]
+                      },
+                      "span": 178
+                    },
+                    {
+                      "kind": {
+                        "Assign": [
+                          {
+                            "local": 5,
+                            "projection": []
+                          },
+                          {
+                            "Ref": [
+                              {
+                                "kind": "ReErased"
+                              },
+                              "Shared",
+                              {
+                                "local": 6,
+                                "projection": []
+                              }
+                            ]
+                          }
+                        ]
+                      },
+                      "span": 177
+                    },
+                    {
+                      "kind": {
+                        "StorageLive": 7
+                      },
+                      "span": 179
+                    },
+                    {
+                      "kind": {
+                        "Assign": [
+                          {
+                            "local": 8,
+                            "projection": []
+                          },
+                          {
+                            "Cast": [
+                              "Transmute",
+                              {
+                                "Copy": {
+                                  "local": 4,
+                                  "projection": []
+                                }
+                              },
+                              61
+                            ]
+                          }
+                        ]
+                      },
+                      "span": 178
+                    },
+                    {
+                      "kind": {
+                        "Assign": [
+                          {
+                            "local": 7,
+                            "projection": []
+                          },
+                          {
+                            "Ref": [
+                              {
+                                "kind": "ReErased"
+                              },
+                              "Shared",
+                              {
+                                "local": 8,
+                                "projection": []
+                              }
+                            ]
+                          }
                         ]
+                      },
+                      "span": 179
+                    }
+                  ],
+                  "terminator": {
+                    "kind": {
+                      "Call": {
+                        "args": [
+                          {
+                            "Copy": {
+                              "local": 6,
+                              "projection": []
+                            }
+                          },
+                          {
+                            "Copy": {
+                              "local": 8,
+                              "projection": []
+                            }
+                          }
+                        ],
+                        "destination": {
+                          "local": 0,
+                          "projection": []
+                        },
+                        "func": {
+                          "Constant": {
+                            "const_": {
+                              "id": 28,
+                              "kind": "ZeroSized",
+                              "ty": 65
+                            },
+                            "span": 173,
+                            "user_ty": null
+                          }
+                        },
+                        "target": 2,
+                        "unwind": "Continue"
                       }
-                    ],
-                    "ty": 59
-                  },
-                  "name": "self",
-                  "source_info": {
-                    "scope": 7,
-                    "span": 241
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 10,
-                      "projection": []
-                    }
+                    },
+                    "span": 174
                   }
                 },
                 {
-                  "argument_index": 1,
-                  "composite": {
-                    "projection": [
-                      {
-                        "Field": [
-                          1,
-                          61
-                        ]
-                      }
-                    ],
-                    "ty": 59
-                  },
-                  "name": "self",
-                  "source_info": {
-                    "scope": 7,
-                    "span": 241
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 27,
-                        "kind": "ZeroSized",
-                        "ty": 61
+                  "statements": [
+                    {
+                      "kind": {
+                        "StorageDead": 7
                       },
-                      "span": 32,
-                      "user_ty": null
+                      "span": 181
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 5
+                      },
+                      "span": 181
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 8
+                      },
+                      "span": 176
+                    },
+                    {
+                      "kind": {
+                        "StorageDead": 6
+                      },
+                      "span": 176
                     }
+                  ],
+                  "terminator": {
+                    "kind": "Return",
+                    "span": 180
                   }
-                },
+                }
+              ],
+              "locals": [
                 {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 8,
-                    "span": 183
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 10,
-                      "projection": []
-                    }
-                  }
+                  "mutability": "Mut",
+                  "span": 182,
+                  "ty": 46
                 },
                 {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "data",
-                  "source_info": {
-                    "scope": 9,
-                    "span": 330
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 7,
-                      "projection": []
-                    }
-                  }
+                  "mutability": "Not",
+                  "span": 183,
+                  "ty": 60
                 },
                 {
-                  "argument_index": 2,
-                  "composite": null,
-                  "name": "len",
-                  "source_info": {
-                    "scope": 9,
-                    "span": 331
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 8,
-                      "projection": []
-                    }
-                  }
+                  "mutability": "Not",
+                  "span": 184,
+                  "ty": 66
                 },
                 {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "data",
-                  "source_info": {
-                    "scope": 14,
-                    "span": 332
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 7,
-                      "projection": []
-                    }
-                  }
+                  "mutability": "Not",
+                  "span": 172,
+                  "ty": 33
                 },
                 {
-                  "argument_index": 2,
-                  "composite": null,
-                  "name": "len",
-                  "source_info": {
-                    "scope": 14,
-                    "span": 333
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 8,
-                      "projection": []
-                    }
-                  }
+                  "mutability": "Mut",
+                  "span": 184,
+                  "ty": 33
                 },
                 {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "data_pointer",
-                  "source_info": {
-                    "scope": 15,
-                    "span": 334
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 7,
-                      "projection": []
-                    }
-                  }
+                  "mutability": "Mut",
+                  "span": 177,
+                  "ty": 67
                 },
                 {
-                  "argument_index": 2,
-                  "composite": null,
-                  "name": "metadata",
-                  "source_info": {
-                    "scope": 15,
-                    "span": 335
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 8,
-                      "projection": []
-                    }
-                  }
+                  "mutability": "Not",
+                  "span": 177,
+                  "ty": 61
                 },
                 {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "v",
-                  "source_info": {
-                    "scope": 16,
-                    "span": 336
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 14,
-                      "projection": []
-                    }
-                  }
+                  "mutability": "Mut",
+                  "span": 179,
+                  "ty": 67
                 },
+                {
+                  "mutability": "Not",
+                  "span": 179,
+                  "ty": 61
+                }
+              ],
+              "span": 194,
+              "spread_arg": null,
+              "var_debug_info": [
                 {
                   "argument_index": 1,
                   "composite": null,
                   "name": "self",
                   "source_info": {
-                    "scope": 17,
-                    "span": 337
+                    "scope": 0,
+                    "span": 183
                   },
                   "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 39,
-                        "kind": "ZeroSized",
-                        "ty": 85
-                      },
-                      "span": 32,
-                      "user_ty": null
+                    "Place": {
+                      "local": 1,
+                      "projection": []
                     }
                   }
                 },
                 {
                   "argument_index": 2,
                   "composite": null,
-                  "name": "slice",
+                  "name": "other",
                   "source_info": {
-                    "scope": 17,
-                    "span": 338
+                    "scope": 0,
+                    "span": 184
                   },
                   "value": {
                     "Place": {
-                      "local": 4,
+                      "local": 2,
                       "projection": []
                     }
                   }
@@ -10143,12 +5806,12 @@
                   "composite": null,
                   "name": "self",
                   "source_info": {
-                    "scope": 18,
-                    "span": 339
+                    "scope": 1,
+                    "span": 185
                   },
                   "value": {
                     "Place": {
-                      "local": 3,
+                      "local": 4,
                       "projection": []
                     }
                   }
@@ -10158,37 +5821,17 @@
                   "composite": null,
                   "name": "index",
                   "source_info": {
-                    "scope": 18,
-                    "span": 340
-                  },
-                  "value": {
-                    "Const": {
-                      "const_": {
-                        "id": 39,
-                        "kind": "ZeroSized",
-                        "ty": 85
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
-                  }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 19,
-                    "span": 337
+                    "scope": 1,
+                    "span": 186
                   },
                   "value": {
                     "Const": {
                       "const_": {
-                        "id": 39,
+                        "id": 27,
                         "kind": "ZeroSized",
-                        "ty": 85
+                        "ty": 34
                       },
-                      "span": 32,
+                      "span": 29,
                       "user_ty": null
                     }
                   }
@@ -10198,12 +5841,12 @@
                   "composite": null,
                   "name": "slice",
                   "source_info": {
-                    "scope": 19,
-                    "span": 338
+                    "scope": 2,
+                    "span": 46
                   },
                   "value": {
                     "Place": {
-                      "local": 3,
+                      "local": 4,
                       "projection": []
                     }
                   }
@@ -10213,12 +5856,12 @@
                   "composite": null,
                   "name": "self",
                   "source_info": {
-                    "scope": 20,
-                    "span": 341
+                    "scope": 3,
+                    "span": 187
                   },
                   "value": {
                     "Place": {
-                      "local": 4,
+                      "local": 3,
                       "projection": []
                     }
                   }
@@ -10228,12 +5871,12 @@
                   "composite": null,
                   "name": "other",
                   "source_info": {
-                    "scope": 20,
-                    "span": 342
+                    "scope": 3,
+                    "span": 188
                   },
                   "value": {
                     "Place": {
-                      "local": 3,
+                      "local": 4,
                       "projection": []
                     }
                   }
@@ -10243,12 +5886,12 @@
                   "composite": null,
                   "name": "self",
                   "source_info": {
-                    "scope": 21,
-                    "span": 343
+                    "scope": 4,
+                    "span": 189
                   },
                   "value": {
                     "Place": {
-                      "local": 4,
+                      "local": 3,
                       "projection": []
                     }
                   }
@@ -10258,12 +5901,12 @@
                   "composite": null,
                   "name": "self",
                   "source_info": {
-                    "scope": 22,
-                    "span": 343
+                    "scope": 5,
+                    "span": 189
                   },
                   "value": {
                     "Place": {
-                      "local": 3,
+                      "local": 4,
                       "projection": []
                     }
                   }
@@ -10273,12 +5916,12 @@
                   "composite": null,
                   "name": "self",
                   "source_info": {
-                    "scope": 23,
-                    "span": 344
+                    "scope": 6,
+                    "span": 190
                   },
                   "value": {
                     "Place": {
-                      "local": 15,
+                      "local": 5,
                       "projection": []
                     }
                   }
@@ -10288,12 +5931,12 @@
                   "composite": null,
                   "name": "other",
                   "source_info": {
-                    "scope": 23,
-                    "span": 345
+                    "scope": 6,
+                    "span": 191
                   },
                   "value": {
                     "Place": {
-                      "local": 17,
+                      "local": 7,
                       "projection": []
                     }
                   }
@@ -10303,12 +5946,12 @@
                   "composite": null,
                   "name": "self",
                   "source_info": {
-                    "scope": 24,
-                    "span": 346
+                    "scope": 7,
+                    "span": 192
                   },
                   "value": {
                     "Place": {
-                      "local": 16,
+                      "local": 6,
                       "projection": []
                     }
                   }
@@ -10318,12 +5961,12 @@
                   "composite": null,
                   "name": "other",
                   "source_info": {
-                    "scope": 24,
-                    "span": 347
+                    "scope": 7,
+                    "span": 193
                   },
                   "value": {
                     "Place": {
-                      "local": 18,
+                      "local": 8,
                       "projection": []
                     }
                   }
@@ -10331,7 +5974,7 @@
               ]
             }
           ],
-          "id": 21,
+          "id": 14,
           "name": "<std::string::String as std::cmp::PartialEq<&str>>::eq"
         }
       },
diff --git a/tests/integration/failing/std-to-string.smir.json.expected b/tests/integration/failing/std-to-string.smir.json.expected
index f7253a3..e69de29 100644
--- a/tests/integration/failing/std-to-string.smir.json.expected
+++ b/tests/integration/failing/std-to-string.smir.json.expected
@@ -1,27369 +0,0 @@
-{
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-                  "name": "index",
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-                        "ty": 115
-                      },
-                      "span": 32,
-                      "user_ty": null
-                    }
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-                },
-                {
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-                    "span": 747
-                  },
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-                  "name": "self",
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-                  },
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-                  }
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-                        "Field": [
-                          0,
-                          72
-                        ]
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-                  },
-                  "name": "self",
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-                          77
-                        ]
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-                  },
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-                    "span": 345
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-                  "name": "data_pointer",
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-                    "span": 755
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-                    "span": 756
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-                  "composite": null,
-                  "name": "v",
-                  "source_info": {
-                    "scope": 16,
-                    "span": 757
-                  },
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-                      "projection": []
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-                    "span": 758
-                  },
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-                        "ty": 115
-                      },
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-                  "name": "slice",
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-                    "span": 759
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-                      "projection": []
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-                  "name": "self",
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-                    "span": 760
-                  },
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-                {
-                  "argument_index": 2,
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-                  "name": "index",
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-                    "scope": 18,
-                    "span": 761
-                  },
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-                      "const_": {
-                        "id": 73,
-                        "kind": "ZeroSized",
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-                      },
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-                      "user_ty": null
-                    }
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-                        "ty": 115
-                      },
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-                    "span": 763
-                  },
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-                      "projection": []
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-                  }
-                },
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-                  "name": "self",
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-                    "scope": 21,
-                    "span": 56
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-                      "projection": []
-                    }
-                  }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
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-                    "span": 56
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-                      "projection": []
-                    }
-                  }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 23,
-                    "span": 764
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 15,
-                      "projection": []
-                    }
-                  }
-                },
-                {
-                  "argument_index": 2,
-                  "composite": null,
-                  "name": "other",
-                  "source_info": {
-                    "scope": 23,
-                    "span": 765
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 17,
-                      "projection": []
-                    }
-                  }
-                },
-                {
-                  "argument_index": 1,
-                  "composite": null,
-                  "name": "self",
-                  "source_info": {
-                    "scope": 24,
-                    "span": 766
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 16,
-                      "projection": []
-                    }
-                  }
-                },
-                {
-                  "argument_index": 2,
-                  "composite": null,
-                  "name": "other",
-                  "source_info": {
-                    "scope": 24,
-                    "span": 767
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 18,
-                      "projection": []
-                    }
-                  }
-                }
-              ]
-            }
-          ],
-          "id": 40,
-          "name": "<std::string::String as std::cmp::PartialEq<&str>>::eq"
-        }
-      },
-      "symbol_name": "_ZN77_$LT$alloc..string..String$u20$as$u20$core..cmp..PartialEq$LT$$RF$str$GT$$GT$2eq17h"
-    }
-  ]
-}
diff --git a/tests/integration/failing/str-empty.smir.json.expected b/tests/integration/failing/str-empty.smir.json.expected
index ee57346..4bba89e 100644
--- a/tests/integration/failing/str-empty.smir.json.expected
+++ b/tests/integration/failing/str-empty.smir.json.expected
@@ -1,17 +1,5 @@
 {
   "allocs": [
-    [
-      {
-        "Memory": {
-          "align": 1,
-          "bytes": [],
-          "mutability": "Not",
-          "provenance": {
-            "ptrs": []
-          }
-        }
-      }
-    ],
     [
       {
         "Memory": {
@@ -46,6 +34,18 @@
         }
       }
     ],
+    [
+      {
+        "Memory": {
+          "align": 1,
+          "bytes": [],
+          "mutability": "Not",
+          "provenance": {
+            "ptrs": []
+          }
+        }
+      }
+    ],
     [
       {
         "Memory": {
@@ -155,16 +155,6 @@
         "NormalSym": "_ZN73_$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$5equal17h"
       }
     ],
-    [
-      {
-        "IntrinsicSym": "size_of_val"
-      }
-    ],
-    [
-      {
-        "IntrinsicSym": "compare_bytes"
-      }
-    ],
     [
       {
         "NormalSym": "_ZN4core3cmp5impls69_$LT$impl$u20$core..cmp..PartialEq$LT$$RF$B$GT$$u20$for$u20$$RF$A$GT$2eq17h"
@@ -204,12 +194,6 @@
                       },
                       "span": 2
                     },
-                    {
-                      "kind": {
-                        "StorageLive": 7
-                      },
-                      "span": 2
-                    },
                     {
                       "kind": {
                         "StorageLive": 8
@@ -294,7 +278,7 @@
                                 "PointerCoercion": "Unsize"
                               },
                               {
-                                "Move": {
+                                "Copy": {
                                   "local": 7,
                                   "projection": []
                                 }
@@ -305,12 +289,6 @@
                         ]
                       },
                       "span": 2
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 7
-                      },
-                      "span": 4
                     }
                   ],
                   "terminator": {
@@ -370,7 +348,7 @@
                       "kind": {
                         "StorageDead": 6
                       },
-                      "span": 6
+                      "span": 5
                     },
                     {
                       "kind": {
@@ -399,51 +377,51 @@
                           }
                         ]
                       },
-                      "span": 7
+                      "span": 6
                     },
                     {
                       "kind": {
                         "StorageDead": 8
                       },
-                      "span": 8
+                      "span": 7
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 8
+                      "span": 7
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 5
+                    "span": 4
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 9,
+                  "span": 8,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 10,
+                  "span": 9,
                   "ty": 7
                 },
                 {
                   "mutability": "Not",
-                  "span": 11,
+                  "span": 10,
                   "ty": 6
                 },
                 {
                   "mutability": "Not",
-                  "span": 12,
+                  "span": 11,
                   "ty": 8
                 },
                 {
                   "mutability": "Not",
-                  "span": 13,
+                  "span": 12,
                   "ty": 9
                 },
                 {
@@ -457,7 +435,7 @@
                   "ty": 5
                 },
                 {
-                  "mutability": "Mut",
+                  "mutability": "Not",
                   "span": 2,
                   "ty": 11
                 },
@@ -467,7 +445,7 @@
                   "ty": 12
                 }
               ],
-              "span": 14,
+              "span": 13,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -476,7 +454,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -491,7 +469,7 @@
                   "name": "argc",
                   "source_info": {
                     "scope": 0,
-                    "span": 11
+                    "span": 10
                   },
                   "value": {
                     "Place": {
@@ -506,7 +484,7 @@
                   "name": "argv",
                   "source_info": {
                     "scope": 0,
-                    "span": 12
+                    "span": 11
                   },
                   "value": {
                     "Place": {
@@ -521,7 +499,7 @@
                   "name": "sigpipe",
                   "source_info": {
                     "scope": 0,
-                    "span": 13
+                    "span": 12
                   },
                   "value": {
                     "Place": {
@@ -536,7 +514,7 @@
                   "name": "v",
                   "source_info": {
                     "scope": 1,
-                    "span": 7
+                    "span": 6
                   },
                   "value": {
                     "Place": {
@@ -568,19 +546,19 @@
                       "kind": {
                         "StorageLive": 2
                       },
-                      "span": 17
+                      "span": 16
                     },
                     {
                       "kind": {
                         "StorageLive": 3
                       },
-                      "span": 16
+                      "span": 15
                     },
                     {
                       "kind": {
                         "StorageLive": 4
                       },
-                      "span": 18
+                      "span": 17
                     },
                     {
                       "kind": {
@@ -607,7 +585,7 @@
                           }
                         ]
                       },
-                      "span": 18
+                      "span": 17
                     }
                   ],
                   "terminator": {
@@ -632,7 +610,7 @@
                               "kind": "ZeroSized",
                               "ty": 13
                             },
-                            "span": 15,
+                            "span": 14,
                             "user_ty": null
                           }
                         },
@@ -640,7 +618,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 16
+                    "span": 15
                   }
                 },
                 {
@@ -649,7 +627,7 @@
                       "kind": {
                         "StorageDead": 4
                       },
-                      "span": 20
+                      "span": 19
                     }
                   ],
                   "terminator": {
@@ -674,7 +652,7 @@
                               "kind": "ZeroSized",
                               "ty": 14
                             },
-                            "span": 19,
+                            "span": 18,
                             "user_ty": null
                           }
                         },
@@ -682,7 +660,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 17
+                    "span": 16
                   }
                 },
                 {
@@ -691,13 +669,13 @@
                       "kind": {
                         "StorageDead": 3
                       },
-                      "span": 22
+                      "span": 21
                     },
                     {
                       "kind": {
                         "StorageLive": 5
                       },
-                      "span": 23
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -706,42 +684,6 @@
                             "local": 5,
                             "projection": []
                           },
-                          {
-                            "Ref": [
-                              {
-                                "kind": "ReErased"
-                              },
-                              "Shared",
-                              {
-                                "local": 2,
-                                "projection": [
-                                  {
-                                    "Field": [
-                                      0,
-                                      15
-                                    ]
-                                  }
-                                ]
-                              }
-                            ]
-                          }
-                        ]
-                      },
-                      "span": 23
-                    },
-                    {
-                      "kind": {
-                        "StorageLive": 6
-                      },
-                      "span": 24
-                    },
-                    {
-                      "kind": {
-                        "Assign": [
-                          {
-                            "local": 6,
-                            "projection": []
-                          },
                           {
                             "Use": {
                               "Copy": {
@@ -765,7 +707,7 @@
                           }
                         ]
                       },
-                      "span": 24
+                      "span": 22
                     },
                     {
                       "kind": {
@@ -779,7 +721,7 @@
                               "IntToInt",
                               {
                                 "Move": {
-                                  "local": 6,
+                                  "local": 5,
                                   "projection": []
                                 }
                               },
@@ -788,37 +730,31 @@
                           }
                         ]
                       },
-                      "span": 25
-                    },
-                    {
-                      "kind": {
-                        "StorageDead": 6
-                      },
-                      "span": 26
+                      "span": 23
                     },
                     {
                       "kind": {
                         "StorageDead": 5
                       },
-                      "span": 27
+                      "span": 24
                     },
                     {
                       "kind": {
                         "StorageDead": 2
                       },
-                      "span": 4
+                      "span": 25
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 21
+                    "span": 20
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 28,
+                  "span": 26,
                   "ty": 16
                 },
                 {
@@ -828,27 +764,22 @@
                 },
                 {
                   "mutability": "Mut",
-                  "span": 17,
+                  "span": 16,
                   "ty": 17
                 },
                 {
                   "mutability": "Mut",
-                  "span": 16,
+                  "span": 15,
                   "ty": 1
                 },
                 {
                   "mutability": "Mut",
-                  "span": 18,
+                  "span": 17,
                   "ty": 7
                 },
                 {
                   "mutability": "Mut",
-                  "span": 23,
-                  "ty": 18
-                },
-                {
-                  "mutability": "Mut",
-                  "span": 24,
+                  "span": 22,
                   "ty": 9
                 }
               ],
@@ -861,7 +792,7 @@
                   "name": "main",
                   "source_info": {
                     "scope": 0,
-                    "span": 10
+                    "span": 9
                   },
                   "value": {
                     "Place": {
@@ -884,7 +815,7 @@
                   "name": "self",
                   "source_info": {
                     "scope": 1,
-                    "span": 29
+                    "span": 27
                   },
                   "value": {
                     "Place": {
@@ -892,21 +823,6 @@
                       "projection": []
                     }
                   }
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-                              34
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+          "id": 6,
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+        }
+      },
+      "symbol_name": "_ZN4core3str6traits54_$LT$impl$u20$core..cmp..PartialEq$u20$for$u20$str$GT$2eq17h"
+    },
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                     {
                       "kind": {
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                             "projection": []
                           },
                           {
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-                              {
-                                "local": 2,
-                                "projection": [
-                                  "Deref"
-                                ]
+                            "Use": {
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+                                "const_": {
+                                  "id": 10,
+                                  "kind": {
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+                                      "align": 1,
+                                      "bytes": [
+                                        0
+                                      ],
+                                      "mutability": "Mut",
+                                      "provenance": {
+                                        "ptrs": []
+                                      }
+                                    }
+                                  },
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+                                },
+                                "span": 66,
+                                "user_ty": null
                               }
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-                    },
-                    {
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-                              {
-                                "Copy": {
-                                  "local": 12,
-                                  "projection": []
-                                }
-                              },
-                              34
-                            ]
+                            }
                           }
                         ]
                       },
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                     }
                   ],
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-                      "Call": {
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-                            "user_ty": null
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-                        },
-                        "target": 3,
-                        "unwind": "Unreachable"
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-                    },
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                   }
                 }
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-                {
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                 }
               ],
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               "spread_arg": null,
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-                  "composite": null,
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-                    "span": 95
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-                },
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-                  "argument_index": 1,
-                  "composite": null,
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-                  "name": "self",
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-                    "span": 98
-                  },
-                  "value": {
-                    "Place": {
-                      "local": 2,
-                      "projection": []
-                    }
-                  }
-                }
-              ]
+              "var_debug_info": []
             }
           ],
-          "id": 9,
-          "name": "<[u8] as core::slice::cmp::SlicePartialEq<u8>>::equal"
+          "id": 7,
+          "name": "<() as std::process::Termination>::report"
         }
       },
-      "symbol_name": "_ZN73_$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$5equal17h"
+      "symbol_name": "_ZN54_$LT$$LP$$RP$$u20$as$u20$std..process..Termination$GT$6report17h"
     },
     {
       "details": null,
@@ -2778,7 +1975,7 @@
                             "Use": {
                               "Constant": {
                                 "const_": {
-                                  "id": 16,
+                                  "id": 12,
                                   "kind": {
                                     "Allocated": {
                                       "align": 8,
@@ -2811,16 +2008,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 24
+                                  "ty": 23
                                 },
-                                "span": 101,
+                                "span": 71,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
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+                      "span": 71
                     },
                     {
                       "kind": {
@@ -2843,7 +2040,7 @@
                           }
                         ]
                       },
-                      "span": 102
+                      "span": 72
                     },
                     {
                       "kind": {
@@ -2856,7 +2053,7 @@
                             "Use": {
                               "Constant": {
                                 "const_": {
-                                  "id": 17,
+                                  "id": 13,
                                   "kind": {
                                     "Allocated": {
                                       "align": 8,
@@ -2881,16 +2078,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 23
+                                  "ty": 22
                                 },
-                                "span": 103,
+                                "span": 73,
                                 "user_ty": null
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                             }
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                         ]
                       },
-                      "span": 103
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                   ],
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@@ -2917,11 +2114,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 15,
+                              "id": 11,
                               "kind": "ZeroSized",
-                              "ty": 37
+                              "ty": 31
                             },
-                            "span": 100,
+                            "span": 70,
                             "user_ty": null
                           }
                         },
@@ -2929,7 +2126,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 100
+                    "span": 70
                   }
                 },
                 {
@@ -2954,14 +2151,14 @@
                         }
                       }
                     },
-                    "span": 100
+                    "span": 70
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 104
+                    "span": 74
                   }
                 },
                 {
@@ -2973,7 +2170,7 @@
                           {
                             "Constant": {
                               "const_": {
-                                "id": 19,
+                                "id": 15,
                                 "kind": {
                                   "Allocated": {
                                     "align": 8,
@@ -3006,9 +2203,9 @@
                                     }
                                   }
                                 },
-                                "ty": 24
+                                "ty": 23
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -3020,11 +2217,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 18,
+                              "id": 14,
                               "kind": "ZeroSized",
-                              "ty": 38
+                              "ty": 32
                             },
-                            "span": 105,
+                            "span": 75,
                             "user_ty": null
                           }
                         },
@@ -3032,43 +2229,43 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 105
+                    "span": 75
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 106,
+                  "span": 76,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 107,
-                  "ty": 24
+                  "span": 77,
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                 },
                 {
                   "mutability": "Mut",
-                  "span": 100,
-                  "ty": 22
+                  "span": 70,
+                  "ty": 21
                 },
                 {
                   "mutability": "Mut",
-                  "span": 102,
-                  "ty": 23
+                  "span": 72,
+                  "ty": 22
                 },
                 {
                   "mutability": "Mut",
-                  "span": 103,
-                  "ty": 23
+                  "span": 73,
+                  "ty": 22
                 },
                 {
                   "mutability": "Mut",
-                  "span": 105,
-                  "ty": 39
+                  "span": 75,
+                  "ty": 33
                 }
               ],
-              "span": 108,
+              "span": 78,
               "spread_arg": null,
               "var_debug_info": [
                 {
@@ -3077,7 +2274,7 @@
                   "name": "a",
                   "source_info": {
                     "scope": 1,
-                    "span": 107
+                    "span": 77
                   },
                   "value": {
                     "Place": {
@@ -3104,7 +2301,7 @@
                             "Use": {
                               "Constant": {
                                 "const_": {
-                                  "id": 16,
+                                  "id": 12,
                                   "kind": {
                                     "Allocated": {
                                       "align": 8,
@@ -3137,16 +2334,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 24
+                                  "ty": 23
                                 },
-                                "span": 103,
+                                "span": 73,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 103
+                      "span": 73
                     },
                     {
                       "kind": {
@@ -3169,33 +2366,33 @@
                           }
                         ]
                       },
-                      "span": 103
+                      "span": 73
                     }
                   ],
                   "terminator": {
                     "kind": "Return",
-                    "span": 103
+                    "span": 73
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 103,
-                  "ty": 23
+                  "span": 73,
+                  "ty": 22
                 },
                 {
                   "mutability": "Mut",
-                  "span": 103,
-                  "ty": 24
+                  "span": 73,
+                  "ty": 23
                 }
               ],
-              "span": 103,
+              "span": 73,
               "spread_arg": null,
               "var_debug_info": []
             }
           ],
-          "id": 10,
+          "id": 8,
           "name": "main"
         }
       },
diff --git a/tests/integration/failing/str-trivial.smir.json.expected b/tests/integration/failing/str-trivial.smir.json.expected
index 58dd252..896b985 100644
--- a/tests/integration/failing/str-trivial.smir.json.expected
+++ b/tests/integration/failing/str-trivial.smir.json.expected
@@ -1,19 +1,5 @@
 {
   "allocs": [
-    [
-      {
-        "Memory": {
-          "align": 1,
-          "bytes": [
-            97
-          ],
-          "mutability": "Not",
-          "provenance": {
-            "ptrs": []
-          }
-        }
-      }
-    ],
     [
       {
         "Memory": {
@@ -48,6 +34,20 @@
         }
       }
     ],
+    [
+      {
+        "Memory": {
+          "align": 1,
+          "bytes": [
+            97
+          ],
+          "mutability": "Not",
+          "provenance": {
+            "ptrs": []
+          }
+        }
+      }
+    ],
     [
       {
         "Memory": {
@@ -162,16 +162,6 @@
         "NormalSym": "_ZN73_$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$5equal17h"
       }
     ],
-    [
-      {
-        "IntrinsicSym": "size_of_val"
-      }
-    ],
-    [
-      {
-        "IntrinsicSym": "compare_bytes"
-      }
-    ],
     [
       {
         "NormalSym": "_ZN4core3cmp5impls69_$LT$impl$u20$core..cmp..PartialEq$LT$$RF$B$GT$$u20$for$u20$$RF$A$GT$2eq17h"
@@ -210,7 +200,7 @@
                             "Use": {
                               "Constant": {
                                 "const_": {
-                                  "id": 16,
+                                  "id": 12,
                                   "kind": {
                                     "Allocated": {
                                       "align": 8,
@@ -243,16 +233,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 24
+                                  "ty": 23
                                 },
-                                "span": 101,
+                                "span": 71,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 101
+                      "span": 71
                     },
                     {
                       "kind": {
@@ -275,7 +265,7 @@
                           }
                         ]
                       },
-                      "span": 102
+                      "span": 72
                     },
                     {
                       "kind": {
@@ -288,7 +278,7 @@
                             "Use": {
                               "Constant": {
                                 "const_": {
-                                  "id": 17,
+                                  "id": 13,
                                   "kind": {
                                     "Allocated": {
                                       "align": 8,
@@ -313,16 +303,16 @@
                                       }
                                     }
                                   },
-                                  "ty": 23
+                                  "ty": 22
                                 },
-                                "span": 103,
+                                "span": 73,
                                 "user_ty": null
                               }
                             }
                           }
                         ]
                       },
-                      "span": 103
+                      "span": 73
                     }
                   ],
                   "terminator": {
@@ -349,11 +339,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 15,
+                              "id": 11,
                               "kind": "ZeroSized",
-                              "ty": 37
+                              "ty": 31
                             },
-                            "span": 100,
+                            "span": 70,
                             "user_ty": null
                           }
                         },
@@ -361,7 +351,7 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 100
+                    "span": 70
                   }
                 },
                 {
@@ -386,14 +376,14 @@
                         }
                       }
                     },
-                    "span": 100
+                    "span": 70
                   }
                 },
                 {
                   "statements": [],
                   "terminator": {
                     "kind": "Return",
-                    "span": 104
+                    "span": 74
                   }
                 },
                 {
@@ -405,7 +395,7 @@
                           {
                             "Constant": {
                               "const_": {
-                                "id": 19,
+                                "id": 15,
                                 "kind": {
                                   "Allocated": {
                                     "align": 8,
@@ -438,9 +428,9 @@
                                     }
                                   }
                                 },
-                                "ty": 24
+                                "ty": 23
                               },
-                              "span": 32,
+                              "span": 29,
                               "user_ty": null
                             }
                           }
@@ -452,11 +442,11 @@
                         "func": {
                           "Constant": {
                             "const_": {
-                              "id": 18,
+                              "id": 14,
                               "kind": "ZeroSized",
-                              "ty": 38
+                              "ty": 32
                             },
-                            "span": 105,
+                            "span": 75,
                             "user_ty": null
                           }
                         },
@@ -464,43 +454,43 @@
                         "unwind": "Continue"
                       }
                     },
-                    "span": 105
+                    "span": 75
                   }
                 }
               ],
               "locals": [
                 {
                   "mutability": "Mut",
-                  "span": 106,
+                  "span": 76,
                   "ty": 1
                 },
                 {
                   "mutability": "Not",
-                  "span": 107,
-                  "ty": 24
+                  "span": 77,
+                  "ty": 23
                 },
                 {
                   "mutability": "Mut",
-                  "span": 100,
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+                  "span": 70,
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                 {
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                 },
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@@ -509,7 +499,7 @@
                   "name": "a",
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                     "Place": {
@@ -536,7 +526,7 @@
                             "Use": {
                               "Constant": {
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@@ -569,16 +559,16 @@
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                                     }
                                   },
-                                  "ty": 24
+                                  "ty": 23
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@@ -601,33 +591,33 @@
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@@ -655,12 +645,6 @@
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@@ -745,7 +729,7 @@
                                 "PointerCoercion": "Unsize"
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                               {
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@@ -756,12 +740,6 @@
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@@ -821,7 +799,7 @@
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@@ -850,51 +828,51 @@
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@@ -908,7 +886,7 @@
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@@ -918,7 +896,7 @@
                   "ty": 12
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@@ -927,7 +905,7 @@
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@@ -942,7 +920,7 @@
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@@ -957,7 +935,7 @@
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@@ -972,7 +950,7 @@
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@@ -987,7 +965,7 @@
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@@ -1083,7 +1061,7 @@
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@@ -1091,7 +1069,7 @@
                         "unwind": "Continue"
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@@ -1100,7 +1078,7 @@
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@@ -1125,7 +1103,7 @@
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@@ -1230,7 +1172,7 @@
                               "IntToInt",
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@@ -1409,9 +1325,9 @@
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@@ -1419,7 +1335,7 @@
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@@ -1449,9 +1365,9 @@
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@@ -1459,35 +1375,35 @@
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@@ -1649,45 +1554,45 @@
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@@ -1767,9 +1672,9 @@
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+                          },
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+                                "kind": "ReErased"
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@@ -1880,9 +1852,9 @@
                             "const_": {
                               "id": 8,
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@@ -1892,7 +1864,7 @@
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@@ -1908,14 +1880,14 @@
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@@ -1931,117 +1903,50 @@
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