Fire 'stack' getter of error objects after GC.

src/heap-inl.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 626 matching lines @@
 void ExternalStringTable::ShrinkNewStrings(int position) {
   new_space_strings_.Rewind(position);
 #ifdef VERIFY_HEAP
   if (FLAG_verify_heap) {
     Verify();
   }
 #endif
 }
 
 
+void ErrorObjectList::Add(JSObject* object) {
+  list_.Add(object);
+}
+
+
+void ErrorObjectList::Iterate(ObjectVisitor* v) {
+  if (!list_.is_empty()) {
+    Object** start = &list_[0];
+    v->VisitPointers(start, start + list_.length());
+  }
+}
+
+
 void Heap::ClearInstanceofCache() {
   set_instanceof_cache_function(the_hole_value());
 }
 
 
 Object* Heap::ToBoolean(bool condition) {
   return condition ? true_value() : false_value();
 }
 
 
@@ skipping 147 matching lines @@
 AssertNoAllocation::~AssertNoAllocation() { }
 DisableAssertNoAllocation::DisableAssertNoAllocation() { }
 DisableAssertNoAllocation::~DisableAssertNoAllocation() { }
 
 #endif
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_INL_H_