Enable assertions and debugging code in the release...

src/heap.cc

 // Copyright 2009 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 3922 matching lines @@
     object_stack.RemoveLast();
 }
 
 
 static void UnmarkObjectRecursively(Object** p);
 class UnmarkObjectVisitor : public ObjectVisitor {
  public:
   void VisitPointers(Object** start, Object** end) {
     // Copy all HeapObject pointers in [start, end)
     for (Object** p = start; p < end; p++) {
-      if ((*p)->IsHeapObject())
+      if ((*p)->IsHeapObject()) {
         UnmarkObjectRecursively(p);
+      }
     }
   }
 };
 
 static UnmarkObjectVisitor unmark_visitor;
 
 static void UnmarkObjectRecursively(Object** p) {
   if (!(*p)->IsHeapObject()) return;
 
   HeapObject* obj = HeapObject::cast(*p);
@@ skipping 240 matching lines @@
 void ExternalStringTable::TearDown() {
   new_space_strings_.Free();
   old_space_strings_.Free();
 }
 
 
 List<Object*> ExternalStringTable::new_space_strings_;
 List<Object*> ExternalStringTable::old_space_strings_;
 
 } }  // namespace v8::internal