Support loads from primitive values.

src/accessors.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 71 matching lines @@
   static Handle<Object> FunctionGetPrototype(Handle<JSFunction> object);
   static Handle<Object> FunctionGetArguments(Handle<JSFunction> object);
 
   // Accessor infos.
   static Handle<AccessorInfo> MakeModuleExport(
       Handle<String> name, int index, PropertyAttributes attributes);
 
   // Returns true for properties that are accessors to object fields.
   // If true, *object_offset contains offset of object field.
   static bool IsJSObjectFieldAccessor(
-      Handle<Map> map, Handle<String> name,
-      int* object_offset);
+      Handle<HeapType> map, Handle<String> name, int* object_offset);
 
 
  private:
   // Accessor functions only used through the descriptor.
   static MaybeObject* FunctionSetPrototype(Isolate* isolate,
                                            JSObject* object,
                                            Object*,
                                            void*);
   static MaybeObject* FunctionGetPrototype(Isolate* isolate,
                                            Object* object,
@@ skipping 53 matching lines @@
   static Object* IllegalGetAccessor(Isolate* isolate, Object* object, void*);
   static MaybeObject* ReadOnlySetAccessor(Isolate* isolate,
                                           JSObject*,
                                           Object* value,
                                           void*);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_ACCESSORS_H_