| Index: sdk/lib/_internal/compiler/implementation/lib/js_array.dart
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| diff --git a/sdk/lib/_internal/compiler/implementation/lib/js_array.dart b/sdk/lib/_internal/compiler/implementation/lib/js_array.dart
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| index 1c1e4920dbf0511057e3a10a6c2f10b06d87cfc8..891e202b9caba4687ec91490d2caaf9a48b1f4e1 100644
 | 
| --- a/sdk/lib/_internal/compiler/implementation/lib/js_array.dart
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| +++ b/sdk/lib/_internal/compiler/implementation/lib/js_array.dart
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| @@ -254,7 +254,8 @@ class JSArray<E> implements List<E> {
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|  
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|    String toString() => Collections.collectionToString(this);
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|  
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| -  List<E> toList() => new List<E>.from(this);
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| +  List<E> toList({ bool growable: false }) =>
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| +      new List<E>.from(this, growable: growable);
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|  
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|    Set<E> toSet() => new Set<E>.from(this);
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|  
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| 
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