Handlify upper layers of KeyedStoreIC.

src/stub-cache.h

Index: src/stub-cache.h
diff --git a/src/stub-cache.h b/src/stub-cache.h
index 1ce4ef59843eb08998243e684e867173ae20d1fa..a6f40a789c8b76992054738ab6a7c383119aaf72 100644
--- a/src/stub-cache.h
+++ b/src/stub-cache.h
@@ -162,12 +162,11 @@ class StubCache {
 
   // ---
 
-  MUST_USE_RESULT MaybeObject* ComputeKeyedStoreField(
-      String* name,
-      JSObject* receiver,
-      int field_index,
-      Map* transition,
-      StrictModeFlag strict_mode);
+  Handle<Code> ComputeKeyedStoreField(Handle<String> name,
+                                      Handle<JSObject> receiver,
+                                      int field_index,
+                                      Handle<Map> transition,
+                                      StrictModeFlag strict_mode);
 
   MUST_USE_RESULT MaybeObject* ComputeKeyedLoadOrStoreElement(
       JSObject* receiver,
@@ -755,6 +754,11 @@ class KeyedStoreStubCompiler: public StubCompiler {
   KeyedStoreStubCompiler(Isolate* isolate, StrictModeFlag strict_mode)
     : StubCompiler(isolate), strict_mode_(strict_mode) { }
 
+  Handle<Code> CompileStoreField(Handle<JSObject> object,
+                                 int index,
+                                 Handle<Map> transition,
+                                 Handle<String> name);
+
   MUST_USE_RESULT MaybeObject* CompileStoreField(JSObject* object,
                                                  int index,
                                                  Map* transition,