Don't visit the impl Trait item twice

oli-obk · oli-obk · commit 0e775a3b8656 · 2018-06-27T11:17:55.000+02:00
diff --git a/src/librustc/hir/intravisit.rs b/src/librustc/hir/intravisit.rs
@@ -607,9 +607,8 @@ pub fn walk_ty<'v, V: Visitor<'v>>(visitor: &mut V, typ: &'v Ty) {
             }
             visitor.visit_lifetime(lifetime);
         }
-        TyImplTraitExistential(item_id, def_id, ref lifetimes) => {
+        TyImplTraitExistential(_, def_id, ref lifetimes) => {
             visitor.visit_def_mention(Def::Existential(def_id));
-            visitor.visit_nested_item(item_id);
             walk_list!(visitor, visit_lifetime, lifetimes);
         }
         TyTypeof(ref expression) => {

Original file line number	Diff line number	Diff line change
`@@ -607,9 +607,8 @@ pub fn walk_ty<'v, V: Visitor<'v>>(visitor: &mut V, typ: &'v Ty) {`
`607`	`607`	`}`
`608`	`608`	`visitor.visit_lifetime(lifetime);`
`609`	`609`	`}`
`610`		`- TyImplTraitExistential(item_id, def_id, ref lifetimes) => {`
	`610`	`+ TyImplTraitExistential(_, def_id, ref lifetimes) => {`
`611`	`611`	`visitor.visit_def_mention(Def::Existential(def_id));`
`612`		`- visitor.visit_nested_item(item_id);`
`613`	`612`	`walk_list!(visitor, visit_lifetime, lifetimes);`
`614`	`613`	`}`
`615`	`614`	`TyTypeof(ref expression) => {`