Fix unused variable warning in serialize.cc

src/serialize.cc

 // Copyright 2006-2008 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 1614 matching lines @@
     reader_.ExpectC(']');
   }
 #endif
 
   // Resolve the encoded pointers we just read in.
   // Same as obj->Iterate(this), but doesn't rely on the map pointer being set.
   VisitPointer(reinterpret_cast<Object**>(obj->address()));
   obj->IterateBody(type, size, this);
 
   if (type == CODE_TYPE) {
-    Code* code = Code::cast(obj);
-    LOG(CodeMoveEvent(a, code->address()));
+    LOG(CodeMoveEvent(a, obj->address()));
   }
   objects_++;
   return o;
 }
 
 
 static inline Object* ResolvePaged(int page_index,
                                    int page_offset,
                                    PagedSpace* space,
                                    List<Page*>* page_list) {
@@ skipping 61 matching lines @@
         ASSERT(index < large_objects_.length());
       }
       return large_objects_[index];  // s.page_offset() is ignored.
   }
   UNREACHABLE();
   return NULL;
 }
 
 
 } }  // namespace v8::internal