Make incremental marking clear type feedback cells.

src/incremental-marking.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 178 matching lines @@
     Code* target = Code::GetCodeFromTargetAddress(rinfo->target_address());
     if (FLAG_cleanup_code_caches_at_gc && target->is_inline_cache_stub()
         && (target->ic_age() != heap->global_ic_age())) {
       IC::Clear(rinfo->pc());
       target = Code::GetCodeFromTargetAddress(rinfo->target_address());
     }
     heap->mark_compact_collector()->RecordRelocSlot(rinfo, Code::cast(target));
     MarkObject(heap, target);
   }
 
-  static void VisitCode(Map* map, HeapObject* object) {
-    Heap* heap = map->GetHeap();
-    Code* code = reinterpret_cast<Code*>(object);
-    code->CodeIterateBody<IncrementalMarkingMarkingVisitor>(heap);
-  }
-
   static void VisitJSWeakMap(Map* map, HeapObject* object) {
     Heap* heap = map->GetHeap();
     VisitPointers(heap,
                   HeapObject::RawField(object, JSWeakMap::kPropertiesOffset),
                   HeapObject::RawField(object, JSWeakMap::kSize));
   }
 
   static void VisitSharedFunctionInfo(Map* map, HeapObject* object) {
     Heap* heap = map->GetHeap();
     SharedFunctionInfo* shared = SharedFunctionInfo::cast(object);
@@ skipping 756 matching lines @@
   allocation_marking_factor_ = kInitialAllocationMarkingFactor;
   bytes_scanned_ = 0;
 }
 
 
 int64_t IncrementalMarking::SpaceLeftInOldSpace() {
   return heap_->MaxOldGenerationSize() - heap_->PromotedSpaceSizeOfObjects();
 }
 
 } }  // namespace v8::internal