| Index: src/harmony-concat-spreadable.js
 | 
| diff --git a/src/harmony-concat-spreadable.js b/src/harmony-concat-spreadable.js
 | 
| index 362701c12304d8f66d7b9dc1515369e0bf868fc5..c5d906a64224b95f2d6fd16048c2c9076b685e1c 100644
 | 
| --- a/src/harmony-concat-spreadable.js
 | 
| +++ b/src/harmony-concat-spreadable.js
 | 
| @@ -8,9 +8,12 @@
 | 
|  
 | 
|  %CheckIsBootstrapping();
 | 
|  
 | 
| +var isConcatSpreadableSymbol =
 | 
| +    utils.ImportNow("is_concat_spreadable_symbol");
 | 
| +
 | 
|  utils.InstallConstants(global.Symbol, [
 | 
|    // TODO(littledan): Move to symbol.js when shipping
 | 
| -  "isConcatSpreadable", symbolIsConcatSpreadable
 | 
| +  "isConcatSpreadable", isConcatSpreadableSymbol
 | 
|  ]);
 | 
|  
 | 
|  })
 | 
| 
 |