Limit the number of transitions allowed per hidden class.

src/objects-inl.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.
 //
 // Review notes:
 //
 // - The use of macros in these inline functions may seem superfluous
 // but it is absolutely needed to make sure gcc generates optimal
 // code. gcc is not happy when attempting to inline too deep.
 //
@@ skipping 5190 matching lines @@
 
 
 Map* Map::elements_transition_map() {
   int index = transitions()->Search(GetHeap()->elements_transition_symbol());
   return transitions()->GetTarget(index);
 }
 
 
 bool Map::CanHaveMoreTransitions() {
   if (!HasTransitionArray()) return true;
-  return FixedArray::SizeFor(transitions()->length() +
-                             TransitionArray::kTransitionSize)
-      <= Page::kMaxRegularHeapObjectSize;
+  return transitions()->number_of_transitions() <=
+         TransitionArray::kMaxNumberOfTransitions;
 }
 
 
 Map* Map::GetTransition(int transition_index) {
   return transitions()->GetTarget(transition_index);
 }
 
 
 int Map::SearchTransition(Name* name) {
   if (HasTransitionArray()) return transitions()->Search(name);
@@ skipping 2059 matching lines @@
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 #undef NOBARRIER_READ_BYTE_FIELD
 #undef NOBARRIER_WRITE_BYTE_FIELD
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_