Differentate between code target pointers and heap pointers in constant pools.

src/mark-compact.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 674 matching lines @@
       page->SetFlag(Page::RESCAN_ON_EVACUATION);
     }
   }
 
   void RecordRelocSlot(RelocInfo* rinfo, Object* target);
   void RecordCodeEntrySlot(Address slot, Code* target);
   void RecordCodeTargetPatch(Address pc, Code* target);
 
   INLINE(void RecordSlot(Object** anchor_slot, Object** slot, Object* object));
 
-  void MigrateObject(Address dst,
-                     Address src,
+  void MigrateObject(HeapObject* dst,
+                     HeapObject* src,
                      int size,
                      AllocationSpace to_old_space);
 
   bool TryPromoteObject(HeapObject* object, int object_size);
 
   inline Object* encountered_weak_collections() {
     return encountered_weak_collections_;
   }
   inline void set_encountered_weak_collections(Object* weak_collection) {
     encountered_weak_collections_ = weak_collection;
@@ skipping 325 matching lines @@
  private:
   MarkCompactCollector* collector_;
 };
 
 
 const char* AllocationSpaceName(AllocationSpace space);
 
 } }  // namespace v8::internal
 
 #endif  // V8_MARK_COMPACT_H_