| Index: runtime/vm/flow_graph_builder.cc | 
| =================================================================== | 
| --- runtime/vm/flow_graph_builder.cc	(revision 10885) | 
| +++ runtime/vm/flow_graph_builder.cc	(working copy) | 
| @@ -1969,7 +1969,8 @@ | 
| node->instance()->Visit(&for_instance); | 
| Append(for_instance); | 
| LoadInstanceFieldComp* load = new LoadInstanceFieldComp( | 
| -      node->field(), for_instance.value(), NULL); | 
| +      node->field(), for_instance.value(), NULL, | 
| +      false);  // Can not deoptimize. | 
| ReturnComputation(load); | 
| } | 
|  | 
|  |