Merge from rustc

1 files changed, 17 insertions, 2 deletions

diff --git a/compiler/rustc_ast/src/visit.rs b/compiler/rustc_ast/src/visit.rs
index 714b074f930..1cb32b56875 100644
--- a/compiler/rustc_ast/src/visit.rs
+++ b/compiler/rustc_ast/src/visit.rs
@@ -179,6 +179,9 @@ pub trait Visitor<'ast>: Sized {
     fn visit_ty(&mut self, t: &'ast Ty) -> Self::Result {
         walk_ty(self, t)
     }
+    fn visit_ty_pat(&mut self, t: &'ast TyPat) -> Self::Result {
+        walk_ty_pat(self, t)
+    }
     fn visit_generic_param(&mut self, param: &'ast GenericParam) -> Self::Result {
         walk_generic_param(self, param)
     }
@@ -534,7 +537,7 @@ pub fn walk_ty<'a, V: Visitor<'a>>(visitor: &mut V, typ: &'a Ty) -> V::Result {
         }
         TyKind::Pat(ty, pat) => {
             try_visit!(visitor.visit_ty(ty));
-            try_visit!(visitor.visit_pat(pat));
+            try_visit!(visitor.visit_ty_pat(pat));
         }
         TyKind::Array(ty, length) => {
             try_visit!(visitor.visit_ty(ty));
@@ -555,6 +558,18 @@ pub fn walk_ty<'a, V: Visitor<'a>>(visitor: &mut V, typ: &'a Ty) -> V::Result {
     V::Result::output()
 }
 
+pub fn walk_ty_pat<'a, V: Visitor<'a>>(visitor: &mut V, tp: &'a TyPat) -> V::Result {
+    let TyPat { id: _, kind, span: _, tokens: _ } = tp;
+    match kind {
+        TyPatKind::Range(start, end, _include_end) => {
+            visit_opt!(visitor, visit_anon_const, start);
+            visit_opt!(visitor, visit_anon_const, end);
+        }
+        TyPatKind::Err(_) => {}
+    }
+    V::Result::output()
+}
+
 fn walk_qself<'a, V: Visitor<'a>>(visitor: &mut V, qself: &'a Option<P<QSelf>>) -> V::Result {
     if let Some(qself) = qself {
         let QSelf { ty, path_span: _, position: _ } = &**qself;
@@ -582,7 +597,7 @@ pub fn walk_use_tree<'a, V: Visitor<'a>>(
             visit_opt!(visitor, visit_ident, rename);
         }
         UseTreeKind::Glob => {}
-        UseTreeKind::Nested { ref items, span: _ } => {
+        UseTreeKind::Nested { items, span: _ } => {
             for &(ref nested_tree, nested_id) in items {
                 try_visit!(visitor.visit_use_tree(nested_tree, nested_id, true));
             }