Serializer: serialize internal references via object visitor.

src/heap/objects-visiting.h

 // 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.
 
 #ifndef V8_OBJECTS_VISITING_H_
 #define V8_OBJECTS_VISITING_H_
 
 #include "src/allocation.h"
 #include "src/layout-descriptor.h"
 
@@ skipping 395 matching lines @@
 
   INLINE(static void VisitPropertyCell(Map* map, HeapObject* object));
   INLINE(static void VisitWeakCell(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 VisitInternalReference(RelocInfo* rinfo)) {}
   INLINE(static void VisitRuntimeEntry(RelocInfo* rinfo)) {}
   // Skip the weak next code link in a code object.
   INLINE(static void VisitNextCodeLink(Heap* heap, Object** slot)) {}
 
   // TODO(mstarzinger): This should be made protected once refactoring is done.
   // Mark non-optimize code for functions inlined into the given optimized
   // code. This will prevent it from being flushed.
   static void MarkInlinedFunctionsCode(Heap* heap, Code* code);
 
  protected:
@@ skipping 64 matching lines @@
 // access the next-element pointers.
 template <class T>
 Object* VisitWeakList(Heap* heap, Object* list, WeakObjectRetainer* retainer,
                       bool stop_after_young);
 Object* VisitNewArrayBufferViewsWeakList(Heap* heap, Object* list,
                                          WeakObjectRetainer* retainer);
 }
 }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_VISITING_H_