| Index: lib/compiler/implementation/ssa/nodes.dart | 
| diff --git a/lib/compiler/implementation/ssa/nodes.dart b/lib/compiler/implementation/ssa/nodes.dart | 
| index e67084dd79de649bd9eecbbf8eff615a501691f7..6d87506ade448d6bc7ad098c6f06c742f27c2785 100644 | 
| --- a/lib/compiler/implementation/ssa/nodes.dart | 
| +++ b/lib/compiler/implementation/ssa/nodes.dart | 
| @@ -2235,7 +2235,8 @@ class HTypeConversion extends HCheck { | 
| } | 
|  | 
| class HStringConcat extends HInstruction { | 
| -  HStringConcat(HInstruction left, HInstrunction right) | 
| +  final Node node; | 
| +  HStringConcat(HInstruction left, HInstruction right, this.node) | 
| : super(<HInstruction>[left, right]); | 
| HType get guaranteedType() => HType.STRING; | 
|  | 
|  |