Support all fast elements kinds in the major array operations.

src/elements.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 157 matching lines @@
   virtual uint32_t GetKeyForIndex(FixedArrayBase* backing_store,
                                   uint32_t index) = 0;
 
  private:
   static ElementsAccessor** elements_accessors_;
   const char* name_;
 
   DISALLOW_COPY_AND_ASSIGN(ElementsAccessor);
 };
 
-
-void CopyObjectToObjectElements(FixedArray* from_obj,
-                                ElementsKind from_kind,
-                                uint32_t from_start,
-                                FixedArray* to_obj,
-                                ElementsKind to_kind,
-                                uint32_t to_start,
-                                int copy_size);
-
-
 } }  // namespace v8::internal
 
 #endif  // V8_ELEMENTS_H_