kill Liveness

Author: nikomatsakis

src/librustc/dep_graph/dep_node.rs

@@ -64,7 +64,6 @@ pub enum DepNode<D: Clone + Debug> {
     CollectItem(D),
     CollectItemSig(D),
     Coherence,
-    Liveness,
     Resolve,
     EntryPoint,
     CheckEntryFn,
@@ -218,7 +217,6 @@ impl<D: Clone + Debug> DepNode<D> {
             PluginRegistrar => Some(PluginRegistrar),
             StabilityIndex => Some(StabilityIndex),
             Coherence => Some(Coherence),
-            Liveness => Some(Liveness),
             Resolve => Some(Resolve),
             EntryPoint => Some(EntryPoint),
             CheckEntryFn => Some(CheckEntryFn),

src/librustc/middle/liveness.rs

@@ -109,7 +109,6 @@ use self::LoopKind::*;
 use self::LiveNodeKind::*;
 use self::VarKind::*;
 
-use dep_graph::DepNode;
 use hir::def::*;
 use ty::{self, TyCtxt, ParameterEnvironment};
 use traits::{self, Reveal};
@@ -196,7 +195,6 @@ impl<'a, 'tcx> Visitor<'tcx> for IrMaps<'a, 'tcx> {
 }
 
 pub fn check_crate<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>) {
-    let _task = tcx.dep_graph.in_task(DepNode::Liveness);
     tcx.hir.krate().visit_all_item_likes(&mut IrMaps::new(tcx).as_deep_visitor());
     tcx.sess.abort_if_errors();
 }