Introduce HTransitionElementsKind instruction.

src/handles.cc

 // Copyright 2011 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 486 matching lines @@
                              uint32_t index,
                              Handle<Object> value,
                              StrictModeFlag strict_mode) {
   ASSERT(!object->HasExternalArrayElements());
   CALL_HEAP_FUNCTION(object->GetIsolate(),
                      object->SetElement(index, *value, strict_mode, false),
                      Object);
 }
 
 
+Handle<Object> TransitionElementsKind(Handle<JSObject> object,
+                                      ElementsKind to_kind) {
+  CALL_HEAP_FUNCTION(object->GetIsolate(),
+                     object->TransitionElementsKind(to_kind),
+                     Object);
+}
+
+
 Handle<JSObject> Copy(Handle<JSObject> obj) {
   Isolate* isolate = obj->GetIsolate();
   CALL_HEAP_FUNCTION(isolate,
                      isolate->heap()->CopyJSObject(*obj), JSObject);
 }
 
 
 Handle<Object> SetAccessor(Handle<JSObject> obj, Handle<AccessorInfo> info) {
   CALL_HEAP_FUNCTION(obj->GetIsolate(), obj->DefineAccessor(*info), Object);
 }
@@ skipping 425 matching lines @@
 
 bool CompileOptimized(Handle<JSFunction> function,
                       int osr_ast_id,
                       ClearExceptionFlag flag) {
   CompilationInfo info(function);
   info.SetOptimizing(osr_ast_id);
   return CompileLazyHelper(&info, flag);
 }
 
 } }  // namespace v8::internal