Fix ilist two-phase name lookup

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62724 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/ADT/ilist.h

@@ -422,7 +422,7 @@ public:
 
   // erase - remove a node from the controlled sequence... and delete it.
   iterator erase(iterator where) {
-    deleteNode(remove(where));
+    this->deleteNode(remove(where));
     return where;
   }