Refactor TypeFeedbackOracle to accept Handle<Name> instead of Handle<String>.

src/type-info.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/ast.h"
 #include "src/code-stubs.h"
 #include "src/compiler.h"
 #include "src/ic/ic.h"
@@ skipping 295 matching lines @@
   Handle<Object> object = GetInfo(id);
   if (!object->IsCode()) return Type::None(zone());
   Handle<Code> code = Handle<Code>::cast(object);
   DCHECK_EQ(Code::BINARY_OP_IC, code->kind());
   BinaryOpICState state(isolate(), code->extra_ic_state());
   return state.GetLeftType(zone());
 }
 
 
 void TypeFeedbackOracle::PropertyReceiverTypes(TypeFeedbackId id,
-                                               Handle<String> name,
+                                               Handle<Name> name,
                                                SmallMapList* receiver_types) {
   receiver_types->Clear();
   Code::Flags flags = Code::ComputeHandlerFlags(Code::LOAD_IC);
   CollectReceiverTypes(id, name, flags, receiver_types);
 }
 
 
 bool TypeFeedbackOracle::HasOnlyStringMaps(SmallMapList* receiver_types) {
   bool all_strings = receiver_types->length() > 0;
   for (int i = 0; i < receiver_types->length(); i++) {
     all_strings &= receiver_types->at(i)->IsStringMap();
   }
   return all_strings;
 }
 
 
 void TypeFeedbackOracle::KeyedPropertyReceiverTypes(
     TypeFeedbackId id,
     SmallMapList* receiver_types,
     bool* is_string,
     IcCheckType* key_type) {
   receiver_types->Clear();
   CollectReceiverTypes(id, receiver_types);
   *is_string = HasOnlyStringMaps(receiver_types);
   GetLoadKeyType(id, key_type);
 }
 
 
 void TypeFeedbackOracle::PropertyReceiverTypes(FeedbackVectorICSlot slot,
-                                               Handle<String> name,
+                                               Handle<Name> name,
                                                SmallMapList* receiver_types) {
   receiver_types->Clear();
   LoadICNexus nexus(feedback_vector_, slot);
   Code::Flags flags = Code::ComputeHandlerFlags(Code::LOAD_IC);
   CollectReceiverTypes(&nexus, name, flags, receiver_types);
 }
 
 
 void TypeFeedbackOracle::KeyedPropertyReceiverTypes(
     FeedbackVectorICSlot slot, SmallMapList* receiver_types, bool* is_string,
     IcCheckType* key_type) {
   receiver_types->Clear();
   KeyedLoadICNexus nexus(feedback_vector_, slot);
   CollectReceiverTypes<FeedbackNexus>(&nexus, receiver_types);
   *is_string = HasOnlyStringMaps(receiver_types);
   *key_type = nexus.FindFirstName() != NULL ? PROPERTY : ELEMENT;
 }
 
 
-void TypeFeedbackOracle::AssignmentReceiverTypes(
-    TypeFeedbackId id, Handle<String> name, SmallMapList* receiver_types) {
+void TypeFeedbackOracle::AssignmentReceiverTypes(TypeFeedbackId id,
+                                                 Handle<Name> name,
+                                                 SmallMapList* receiver_types) {
   receiver_types->Clear();
   Code::Flags flags = Code::ComputeHandlerFlags(Code::STORE_IC);
   CollectReceiverTypes(id, name, flags, receiver_types);
 }
 
 
 void TypeFeedbackOracle::KeyedAssignmentReceiverTypes(
     TypeFeedbackId id, SmallMapList* receiver_types,
     KeyedAccessStoreMode* store_mode, IcCheckType* key_type) {
   receiver_types->Clear();
   CollectReceiverTypes(id, receiver_types);
   GetStoreModeAndKeyType(id, store_mode, key_type);
 }
 
 
 void TypeFeedbackOracle::CountReceiverTypes(TypeFeedbackId id,
                                             SmallMapList* receiver_types) {
   receiver_types->Clear();
   CollectReceiverTypes(id, receiver_types);
 }
 
 
 void TypeFeedbackOracle::CollectReceiverTypes(TypeFeedbackId ast_id,
-                                              Handle<String> name,
+                                              Handle<Name> name,
                                               Code::Flags flags,
                                               SmallMapList* types) {
   Handle<Object> object = GetInfo(ast_id);
   if (object->IsUndefined() || object->IsSmi()) return;
 
   DCHECK(object->IsCode());
   Handle<Code> code(Handle<Code>::cast(object));
   CollectReceiverTypes<Code>(*code, name, flags, types);
 }
 
 
 template <class T>
-void TypeFeedbackOracle::CollectReceiverTypes(T* obj, Handle<String> name,
+void TypeFeedbackOracle::CollectReceiverTypes(T* obj, Handle<Name> name,
                                               Code::Flags flags,
                                               SmallMapList* types) {
   if (FLAG_collect_megamorphic_maps_from_stub_cache &&
       obj->ic_state() == MEGAMORPHIC) {
     types->Reserve(4, zone());
     isolate()->stub_cache()->CollectMatchingMaps(
         types, name, flags, native_context_, zone());
   } else {
     CollectReceiverTypes<T>(obj, types);
   }
@@ skipping 147 matching lines @@
          UnseededNumberDictionary::kNotFound);
   // Dictionary has been allocated with sufficient size for all elements.
   DisallowHeapAllocation no_need_to_resize_dictionary;
   HandleScope scope(isolate());
   USE(UnseededNumberDictionary::AtNumberPut(
       dictionary_, IdToKey(ast_id), handle(target, isolate())));
 }
 
 
 } }  // namespace v8::internal