Fix clang template weirdness.

src/hashmap.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 313 matching lines @@
     friend class TemplateHashMap;
   };
 
   TemplateHashMap(
       typename TemplateHashMapImpl<AllocationPolicy>::MatchFun match)
     : TemplateHashMapImpl<AllocationPolicy>(match) { }
 
   Iterator begin() const { return Iterator(this, this->Start()); }
   Iterator end() const { return Iterator(this, NULL); }
   Iterator find(Key* key, bool insert = false) {
-    return Iterator(this, Lookup(key, key->Hash(), insert));
+    return Iterator(this, this->Lookup(key, key->Hash(), insert));
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_HASHMAP_H_