Remove unnecessary lifetime from StorageConflictVisitor.

Author: nnethercote

compiler/rustc_mir_transform/src/coroutine.rs

@@ -872,9 +872,9 @@ fn compute_storage_conflicts<'mir, 'tcx>(
     storage_conflicts
 }
 
-struct StorageConflictVisitor<'mir, 'tcx, 's> {
+struct StorageConflictVisitor<'mir, 'tcx> {
     body: &'mir Body<'tcx>,
-    saved_locals: &'s CoroutineSavedLocals,
+    saved_locals: &'mir CoroutineSavedLocals,
     // FIXME(tmandry): Consider using sparse bitsets here once we have good
     // benchmarks for coroutines.
     local_conflicts: BitMatrix<Local, Local>,
@@ -883,7 +883,7 @@ struct StorageConflictVisitor<'mir, 'tcx, 's> {
 }
 
 impl<'mir, 'tcx, R> rustc_mir_dataflow::ResultsVisitor<'mir, 'tcx, R>
-    for StorageConflictVisitor<'mir, 'tcx, '_>
+    for StorageConflictVisitor<'mir, 'tcx>
 {
     type FlowState = BitSet<Local>;
 
@@ -908,7 +908,7 @@ impl<'mir, 'tcx, R> rustc_mir_dataflow::ResultsVisitor<'mir, 'tcx, R>
     }
 }
 
-impl StorageConflictVisitor<'_, '_, '_> {
+impl StorageConflictVisitor<'_, '_> {
     fn apply_state(&mut self, flow_state: &BitSet<Local>, loc: Location) {
         // Ignore unreachable blocks.
         if let TerminatorKind::Unreachable = self.body.basic_blocks[loc.block].terminator().kind {