super_ty on MutVisitor is empty so avoid the call

spastorino · spastorino · commit be71d2bc2b18 · 2019-10-09T11:43:57.000-03:00
diff --git a/src/librustc_mir/transform/erase_regions.rs b/src/librustc_mir/transform/erase_regions.rs
@@ -25,7 +25,6 @@ impl EraseRegionsVisitor<'tcx> {
 impl MutVisitor<'tcx> for EraseRegionsVisitor<'tcx> {
     fn visit_ty(&mut self, ty: &mut Ty<'tcx>, _: TyContext) {
         *ty = self.tcx.erase_regions(ty);
-        self.super_ty(ty);
     }
 
     fn visit_region(&mut self, region: &mut ty::Region<'tcx>, _: Location) {

Original file line number	Diff line number	Diff line change
`@@ -25,7 +25,6 @@ impl EraseRegionsVisitor<'tcx> {`
`25`	`25`	`impl MutVisitor<'tcx> for EraseRegionsVisitor<'tcx> {`
`26`	`26`	`fn visit_ty(&mut self, ty: &mut Ty<'tcx>, _: TyContext) {`
`27`	`27`	`*ty = self.tcx.erase_regions(ty);`
`28`		`- self.super_ty(ty);`
`29`	`28`	`}`
`30`	`29`
`31`	`30`	`fn visit_region(&mut self, region: &mut ty::Region<'tcx>, _: Location) {`