Don't record elements transition slots since it will contain a map.

src/transitions-inl.h

Index: src/transitions-inl.h
diff --git a/src/transitions-inl.h b/src/transitions-inl.h
index 09284cbddbf50b7728e917953c0cfbcaf1f66be6..24ff8c2af09e9ff23a8bb95f1234616d1aec0f3a 100644
--- a/src/transitions-inl.h
+++ b/src/transitions-inl.h
@@ -167,12 +167,6 @@ PropertyDetails TransitionArray::GetTargetDetails(int transition_number) {
 }
 
 
-Object** TransitionArray::GetElementsTransitionSlot() {
-  return HeapObject::RawField(reinterpret_cast<HeapObject*>(this),
-                              kElementsTransitionOffset);
-}
-
-
 int TransitionArray::Search(String* name) {
   return internal::Search(this, name);
 }