| Index: src/hydrogen.cc | 
| diff --git a/src/hydrogen.cc b/src/hydrogen.cc | 
| index bfb6d1bdcef9c0655b10d81f0c9a45ba34bfc772..e8185451fbb4b018849323b8a107d31944ccd7d6 100644 | 
| --- a/src/hydrogen.cc | 
| +++ b/src/hydrogen.cc | 
| @@ -3257,7 +3257,7 @@ void HGraphBuilder::HandlePolymorphicStoreNamedField(Assignment* expr, | 
| } | 
|  | 
| HBasicBlock* new_exit_block = | 
| -        BuildTypeSwitch(&maps, &subgraphs, object, expr->id()); | 
| +        BuildTypeSwitch(&maps, &subgraphs, object, expr->AssignmentId()); | 
| subgraph()->set_exit_block(new_exit_block); | 
| } | 
|  | 
|  |