Reland r20932: "*NumberDictionary::AtNumberPut() handlified."

src/code-stubs.cc

Index: src/code-stubs.cc
diff --git a/src/code-stubs.cc b/src/code-stubs.cc
index 0c9f3af41f325114e9bd23d22b18b17e61a4a7ee..b9722d18719d3d0884dcbaac5ba56f135527a894 100644
--- a/src/code-stubs.cc
+++ b/src/code-stubs.cc
@@ -135,7 +135,6 @@ void CodeStub::VerifyPlatformFeatures(Isolate* isolate) {
 
 
 Handle<Code> CodeStub::GetCode(Isolate* isolate) {
-  Factory* factory = isolate->factory();
   Heap* heap = isolate->heap();
   Code* code;
   if (UseSpecialCache()
@@ -170,7 +169,7 @@ Handle<Code> CodeStub::GetCode(Isolate* isolate) {
     } else {
       // Update the dictionary and the root in Heap.
       Handle<UnseededNumberDictionary> dict =
-          factory->DictionaryAtNumberPut(
+          UnseededNumberDictionary::AtNumberPut(
               Handle<UnseededNumberDictionary>(heap->code_stubs()),
               GetKey(),
               new_object);