Revert of [ic] Support data handlers that represent simple field stores.

src/type-feedback-vector.h

 // Copyright 2014 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.
 
 #ifndef V8_TYPE_FEEDBACK_VECTOR_H_
 #define V8_TYPE_FEEDBACK_VECTOR_H_
 
 #include <vector>
 
 #include "src/base/logging.h"
@@ skipping 591 matching lines @@
       : FeedbackNexus(
             TypeFeedbackVector::DummyVector(isolate),
             FeedbackVectorSlot(TypeFeedbackVector::kDummyStoreICSlot)) {}
   StoreICNexus(TypeFeedbackVector* vector, FeedbackVectorSlot slot)
       : FeedbackNexus(vector, slot) {
     DCHECK_EQ(FeedbackVectorSlotKind::STORE_IC, vector->GetKind(slot));
   }
 
   void Clear(Code* host);
 
-  void ConfigureMonomorphic(Handle<Map> receiver_map, Handle<Object> handler);
+  void ConfigureMonomorphic(Handle<Map> receiver_map, Handle<Code> handler);
 
   void ConfigurePolymorphic(MapHandleList* maps,
                             List<Handle<Object>>* handlers);
 
   InlineCacheState StateFromFeedback() const override;
 };
 
 
 class KeyedStoreICNexus : public FeedbackNexus {
  public:
   KeyedStoreICNexus(Handle<TypeFeedbackVector> vector, FeedbackVectorSlot slot)
       : FeedbackNexus(vector, slot) {
     DCHECK_EQ(FeedbackVectorSlotKind::KEYED_STORE_IC, vector->GetKind(slot));
   }
   explicit KeyedStoreICNexus(Isolate* isolate)
       : FeedbackNexus(
             TypeFeedbackVector::DummyVector(isolate),
             FeedbackVectorSlot(TypeFeedbackVector::kDummyKeyedStoreICSlot)) {}
   KeyedStoreICNexus(TypeFeedbackVector* vector, FeedbackVectorSlot slot)
       : FeedbackNexus(vector, slot) {
     DCHECK_EQ(FeedbackVectorSlotKind::KEYED_STORE_IC, vector->GetKind(slot));
   }
 
   void Clear(Code* host);
 
   // name can be a null handle for element loads.
   void ConfigureMonomorphic(Handle<Name> name, Handle<Map> receiver_map,
-                            Handle<Object> handler);
+                            Handle<Code> handler);
   // name can be null.
   void ConfigurePolymorphic(Handle<Name> name, MapHandleList* maps,
                             List<Handle<Object>>* handlers);
   void ConfigurePolymorphic(MapHandleList* maps,
                             MapHandleList* transitioned_maps,
                             CodeHandleList* handlers);
   void ConfigureMegamorphicKeyed(IcCheckType property_type);
 
   KeyedAccessStoreMode GetKeyedAccessStoreMode() const;
   IcCheckType GetKeyType() const;
@@ skipping 64 matching lines @@
   }
 };
 
 inline BinaryOperationHint BinaryOperationHintFromFeedback(int type_feedback);
 inline CompareOperationHint CompareOperationHintFromFeedback(int type_feedback);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TRANSITIONS_H_