Grouping all map creation code.

src/factory.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 209 matching lines @@
       int instance_size,
       ElementsKind elements_kind = TERMINAL_FAST_ELEMENTS_KIND);
 
   Handle<JSObject> NewFunctionPrototype(Handle<JSFunction> function);
 
   Handle<Map> CopyWithPreallocatedFieldDescriptors(Handle<Map> map);
 
   // Copy the map adding more inobject properties if possible without
   // overflowing the instance size.
   Handle<Map> CopyMap(Handle<Map> map, int extra_inobject_props);
-
-  Handle<Map> CopyMapDropTransitions(Handle<Map> map);
+  Handle<Map> CopyMap(Handle<Map> map);
 
   Handle<Map> GetElementsTransitionMap(Handle<JSObject> object,
                                        ElementsKind elements_kind);
 
   Handle<FixedArray> CopyFixedArray(Handle<FixedArray> array);
 
   Handle<FixedDoubleArray> CopyFixedDoubleArray(
       Handle<FixedDoubleArray> array);
 
   // Numbers (e.g. literals) are pretenured by the parser.
@@ skipping 271 matching lines @@
   // Update the map cache in the global context with (keys, map)
   Handle<MapCache> AddToMapCache(Handle<Context> context,
                                  Handle<FixedArray> keys,
                                  Handle<Map> map);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_FACTORY_H_