Auto merge of #124910 - matthiaskrgr:rollup-lo1uvdn, r=matthiaskrgr

Rollup of 8 pull requests

Successful merges:

 - #123344 (Remove braces when fixing a nested use tree into a single item)
 - #124587 (Generic `NonZero` post-stabilization changes.)
 - #124775 (crashes: add lastest batch of crash tests)
 - #124869 (Make sure we don't deny macro vars w keyword names)
 - #124876 (Simplify `use crate::rustc_foo::bar` occurrences.)
 - #124892 (Update cc crate to v1.0.97)
 - #124903 (Ignore empty RUSTC_WRAPPER in bootstrap)
 - #124909 (Reapply the part of #124548 that bors forgot)

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors

Cargo.lock

@@ -479,9 +479,9 @@ version = "0.1.0"
 
 [[package]]
 name = "cc"
-version = "1.0.92"
+version = "1.0.97"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2678b2e3449475e95b0aa6f9b506a28e61b3dc8996592b983695e8ebb58a8b41"
+checksum = "099a5357d84c4c61eb35fc8eafa9a79a902c2f76911e5747ced4e032edd8d9b4"
 
 [[package]]
 name = "cfg-if"
@@ -2219,7 +2219,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0c2a198fb6b0eada2a8df47933734e6d35d350665a33a3593d7164fa52c75c19"
 dependencies = [
  "cfg-if",
- "windows-targets 0.48.5",
+ "windows-targets 0.52.4",
 ]
 
 [[package]]

compiler/rustc_abi/src/layout.rs

@@ -2,6 +2,7 @@ use std::borrow::{Borrow, Cow};
 use std::cmp;
 use std::fmt::{self, Write};
 use std::iter;
+use std::num::NonZero;
 use std::ops::Bound;
 use std::ops::Deref;
 
@@ -10,8 +11,8 @@ use tracing::debug;
 
 use crate::{
     Abi, AbiAndPrefAlign, Align, FieldsShape, IndexSlice, IndexVec, Integer, LayoutS, Niche,
-    NonZeroUsize, Primitive, ReprOptions, Scalar, Size, StructKind, TagEncoding, TargetDataLayout,
-    Variants, WrappingRange,
+    Primitive, ReprOptions, Scalar, Size, StructKind, TagEncoding, TargetDataLayout, Variants,
+    WrappingRange,
 };
 
 // A variant is absent if it's uninhabited and only has ZST fields.
@@ -327,7 +328,7 @@ pub trait LayoutCalculator {
 
         Some(LayoutS {
             variants: Variants::Single { index: VariantIdx::new(0) },
-            fields: FieldsShape::Union(NonZeroUsize::new(only_variant.len())?),
+            fields: FieldsShape::Union(NonZero::new(only_variant.len())?),
             abi,
             largest_niche: None,
             align,

compiler/rustc_abi/src/lib.rs

@@ -4,7 +4,7 @@
 #![cfg_attr(feature = "nightly", feature(rustdoc_internals))]
 
 use std::fmt;
-use std::num::{NonZeroUsize, ParseIntError};
+use std::num::{NonZero, ParseIntError};
 use std::ops::{Add, AddAssign, Mul, RangeInclusive, Sub};
 use std::str::FromStr;
 
@@ -1149,7 +1149,7 @@ pub enum FieldsShape<FieldIdx: Idx> {
     Primitive,
 
     /// All fields start at no offset. The `usize` is the field count.
-    Union(NonZeroUsize),
+    Union(NonZero<usize>),
 
     /// Array/vector-like placement, with all fields of identical types.
     Array { stride: Size, count: u64 },

compiler/rustc_ast/src/ast.rs

@@ -2164,7 +2164,7 @@ pub enum TyKind {
     MacCall(P<MacCall>),
     /// Placeholder for a `va_list`.
     CVarArgs,
-    /// Pattern types like `pattern_type!(u32 is 1..=)`, which is the same as `NonZeroU32`,
+    /// Pattern types like `pattern_type!(u32 is 1..=)`, which is the same as `NonZero<u32>`,
     /// just as part of the type system.
     Pat(P<Ty>, P<Pat>),
     /// Sometimes we need a dummy value when no error has occurred.
@@ -2729,7 +2729,7 @@ pub enum UseTreeKind {
     /// `use prefix` or `use prefix as rename`
     Simple(Option<Ident>),
     /// `use prefix::{...}`
-    Nested(ThinVec<(UseTree, NodeId)>),
+    Nested { items: ThinVec<(UseTree, NodeId)>, span: Span },
     /// `use prefix::*`
     Glob,
 }

compiler/rustc_ast/src/mut_visit.rs

@@ -441,7 +441,7 @@ fn noop_visit_use_tree<T: MutVisitor>(use_tree: &mut UseTree, vis: &mut T) {
     vis.visit_path(prefix);
     match kind {
         UseTreeKind::Simple(rename) => visit_opt(rename, |rename| vis.visit_ident(rename)),
-        UseTreeKind::Nested(items) => {
+        UseTreeKind::Nested { items, .. } => {
             for (tree, id) in items {
                 vis.visit_use_tree(tree);
                 vis.visit_id(id);

compiler/rustc_ast/src/visit.rs

@@ -517,8 +517,8 @@ pub fn walk_use_tree<'a, V: Visitor<'a>>(
             visit_opt!(visitor, visit_ident, rename);
         }
         UseTreeKind::Glob => {}
-        UseTreeKind::Nested(ref use_trees) => {
-            for &(ref nested_tree, nested_id) in use_trees {
+        UseTreeKind::Nested { ref items, .. } => {
+            for &(ref nested_tree, nested_id) in items {
                 try_visit!(visitor.visit_use_tree(nested_tree, nested_id, true));
             }
         }

compiler/rustc_ast_lowering/src/item.rs

@@ -135,8 +135,8 @@ impl<'hir> LoweringContext<'_, 'hir> {
 
     fn lower_item_id_use_tree(&mut self, tree: &UseTree, vec: &mut SmallVec<[hir::ItemId; 1]>) {
         match &tree.kind {
-            UseTreeKind::Nested(nested_vec) => {
-                for &(ref nested, id) in nested_vec {
+            UseTreeKind::Nested { items, .. } => {
+                for &(ref nested, id) in items {
                     vec.push(hir::ItemId {
                         owner_id: hir::OwnerId { def_id: self.local_def_id(id) },
                     });
@@ -518,7 +518,7 @@ impl<'hir> LoweringContext<'_, 'hir> {
                 let path = self.lower_use_path(res, &path, ParamMode::Explicit);
                 hir::ItemKind::Use(path, hir::UseKind::Glob)
             }
-            UseTreeKind::Nested(ref trees) => {
+            UseTreeKind::Nested { items: ref trees, .. } => {
                 // Nested imports are desugared into simple imports.
                 // So, if we start with
                 //

compiler/rustc_ast_pretty/src/pprust/state/item.rs

@@ -715,7 +715,7 @@ impl<'a> State<'a> {
                 }
                 self.word("*");
             }
-            ast::UseTreeKind::Nested(items) => {
+            ast::UseTreeKind::Nested { items, .. } => {
                 if !tree.prefix.segments.is_empty() {
                     self.print_path(&tree.prefix, false, 0);
                     self.word("::");
@@ -734,7 +734,7 @@ impl<'a> State<'a> {
                         self.print_use_tree(&use_tree.0);
                         if !is_last {
                             self.word(",");
-                            if let ast::UseTreeKind::Nested(_) = use_tree.0.kind {
+                            if let ast::UseTreeKind::Nested { .. } = use_tree.0.kind {
                                 self.hardbreak();
                             } else {
                                 self.space();

compiler/rustc_builtin_macros/src/assert/context.rs

@@ -120,10 +120,13 @@ impl<'cx, 'a> Context<'cx, 'a> {
                 thin_vec![self.cx.attr_nested_word(sym::allow, sym::unused_imports, self.span)],
                 ItemKind::Use(UseTree {
                     prefix: self.cx.path(self.span, self.cx.std_path(&[sym::asserting])),
-                    kind: UseTreeKind::Nested(thin_vec![
-                        nested_tree(self, sym::TryCaptureGeneric),
-                        nested_tree(self, sym::TryCapturePrintable),
-                    ]),
+                    kind: UseTreeKind::Nested {
+                        items: thin_vec![
+                            nested_tree(self, sym::TryCaptureGeneric),
+                            nested_tree(self, sym::TryCapturePrintable),
+                        ],
+                        span: self.span,
+                    },
                     span: self.span,
                 }),
             ),

compiler/rustc_codegen_gcc/src/debuginfo.rs

@@ -1,10 +1,9 @@
-use crate::rustc_index::Idx;
 use gccjit::{Location, RValue};
 use rustc_codegen_ssa::mir::debuginfo::{DebugScope, FunctionDebugContext, VariableKind};
 use rustc_codegen_ssa::traits::{DebugInfoBuilderMethods, DebugInfoMethods};
 use rustc_data_structures::sync::Lrc;
 use rustc_index::bit_set::BitSet;
-use rustc_index::IndexVec;
+use rustc_index::{Idx, IndexVec};
 use rustc_middle::mir::{self, Body, SourceScope};
 use rustc_middle::ty::{Instance, PolyExistentialTraitRef, Ty};
 use rustc_session::config::DebugInfo;