Always use the StoreFieldStub to do the actual storing.

src/code-stubs.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/bootstrapper.h"
 #include "src/code-stubs.h"
 #include "src/cpu-profiler.h"
 #include "src/factory.h"
@@ skipping 919 matching lines @@
 }
 
 
 // static
 void KeyedLoadGenericStub::InstallDescriptors(Isolate* isolate) {
   KeyedLoadGenericStub stub(isolate);
   InstallDescriptor(isolate, &stub);
 }
 
 
+// static
+void StoreFieldStub::InstallDescriptors(Isolate* isolate) {
+  StoreFieldStub stub(isolate, FieldIndex::ForInObjectOffset(0),
+                      Representation::None());
+  InstallDescriptor(isolate, &stub);
+}
+
+
 ArrayConstructorStub::ArrayConstructorStub(Isolate* isolate)
     : PlatformCodeStub(isolate), argument_count_(ANY) {
   ArrayConstructorStubBase::GenerateStubsAheadOfTime(isolate);
 }
 
 
 ArrayConstructorStub::ArrayConstructorStub(Isolate* isolate,
                                            int argument_count)
     : PlatformCodeStub(isolate) {
   if (argument_count == 0) {
@@ skipping 18 matching lines @@
   InstallDescriptor(isolate, &stub3);
 }
 
 InternalArrayConstructorStub::InternalArrayConstructorStub(
     Isolate* isolate) : PlatformCodeStub(isolate) {
   InternalArrayConstructorStubBase::GenerateStubsAheadOfTime(isolate);
 }
 
 
 } }  // namespace v8::internal