Tag all prototypes as proto, except those set using __proto__

src/stub-cache.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/api.h"
 #include "src/arguments.h"
 #include "src/ast.h"
 #include "src/code-stubs.h"
@@ skipping 331 matching lines @@
 
   FillCache(isolate, code);
   return code;
 }
 
 
 Handle<Code> PropertyICCompiler::ComputeCompareNil(Handle<Map> receiver_map,
                                                    CompareNilICStub* stub) {
   Isolate* isolate = receiver_map->GetIsolate();
   Handle<String> name(isolate->heap()->empty_string());
-  if (!receiver_map->is_shared()) {
+  if (!receiver_map->is_dictionary_map()) {
     Handle<Code> cached_ic =
         Find(name, receiver_map, Code::COMPARE_NIL_IC, stub->GetExtraICState());
     if (!cached_ic.is_null()) return cached_ic;
   }
 
   Code::FindAndReplacePattern pattern;
   pattern.Add(isolate->factory()->meta_map(), receiver_map);
   Handle<Code> ic = stub->GetCodeCopy(pattern);
 
-  if (!receiver_map->is_shared()) {
+  if (!receiver_map->is_dictionary_map()) {
     Map::UpdateCodeCache(receiver_map, name, ic);
   }
 
   return ic;
 }
 
 
 // TODO(verwaest): Change this method so it takes in a TypeHandleList.
 Handle<Code> PropertyICCompiler::ComputeKeyedLoadPolymorphic(
     MapHandleList* receiver_maps) {
@@ skipping 911 matching lines @@
           Handle<FunctionTemplateInfo>(
               FunctionTemplateInfo::cast(signature->receiver()));
     }
   }
 
   is_simple_api_call_ = true;
 }
 
 
 } }  // namespace v8::internal