Turn ElementsTransitionAndStore stub into a HydrogenCodeStub.

src/runtime.cc

Index: src/runtime.cc
diff --git a/src/runtime.cc b/src/runtime.cc
index 6e045608b9c10d19178a4ee1f5308e9e2e214123..3bb09f3e5c8ad0bc4a44661cd3915077619c0c52 100644
--- a/src/runtime.cc
+++ b/src/runtime.cc
@@ -5157,6 +5157,40 @@ RUNTIME_FUNCTION(MaybeObject*, Runtime_TransitionElementsKind) {
 }
 
 
+RUNTIME_FUNCTION(MaybeObject*, Runtime_ElementsTransitionAndStoreStrict) {
+  SealHandleScope scope(isolate);
+  RUNTIME_ASSERT(args.length() == 4);
+
+  Handle<Object> value = args.at<Object>(0);
+  Handle<Object> key = args.at<Object>(2);
+  Handle<Object> object = args.at<Object>(3);
+
+  return Runtime::SetObjectProperty(isolate,
+                                    object,
+                                    key,
+                                    value,
+                                    NONE,
+                                    kStrictMode);
+}
+
+
+RUNTIME_FUNCTION(MaybeObject*, Runtime_ElementsTransitionAndStoreNonStrict) {
+  SealHandleScope scope(isolate);
+  RUNTIME_ASSERT(args.length() == 4);
+
+  Handle<Object> value = args.at<Object>(0);
+  Handle<Object> key = args.at<Object>(2);
+  Handle<Object> object = args.at<Object>(3);
+
+  return Runtime::SetObjectProperty(isolate,
+                                    object,
+                                    key,
+                                    value,
+                                    NONE,
+                                    kNonStrictMode);
+}
+
+
 RUNTIME_FUNCTION(MaybeObject*, Runtime_TransitionElementsSmiToDouble) {
   SealHandleScope shs(isolate);
   RUNTIME_ASSERT(args.length() == 1);