Bugfix: make dependent code field in AllocationSite weak.

src/objects-visiting.h

 // 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 381 matching lines @@
 template<typename StaticVisitor>
 class StaticMarkingVisitor : public StaticVisitorBase {
  public:
   static void Initialize();
 
   INLINE(static void IterateBody(Map* map, HeapObject* obj)) {
     table_.GetVisitor(map)(map, obj);
   }
 
   INLINE(static void VisitPropertyCell(Map* map, HeapObject* object));
+  INLINE(static void VisitAllocationSite(Map* map, HeapObject* object));
   INLINE(static void VisitCodeEntry(Heap* heap, Address entry_address));
   INLINE(static void VisitEmbeddedPointer(Heap* heap, RelocInfo* rinfo));
   INLINE(static void VisitCell(Heap* heap, RelocInfo* rinfo));
   INLINE(static void VisitDebugTarget(Heap* heap, RelocInfo* rinfo));
   INLINE(static void VisitCodeTarget(Heap* heap, RelocInfo* rinfo));
   INLINE(static void VisitCodeAgeSequence(Heap* heap, RelocInfo* rinfo));
   INLINE(static void VisitExternalReference(RelocInfo* rinfo)) { }
   INLINE(static void VisitRuntimeEntry(RelocInfo* rinfo)) { }
 
   // TODO(mstarzinger): This should be made protected once refactoring is done.
@@ skipping 58 matching lines @@
 
 
 template<typename StaticVisitor>
 VisitorDispatchTable<typename StaticMarkingVisitor<StaticVisitor>::Callback>
     StaticMarkingVisitor<StaticVisitor>::table_;
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_VISITING_H_