| Index: sdk/lib/coreimpl/regexp.dart
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| diff --git a/sdk/lib/coreimpl/regexp.dart b/sdk/lib/coreimpl/regexp.dart
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| index 845a26e38b83aa34dfdd35398e79003c3c727bb4..b7076311f31afeffbca66a6570cf538bb68d9552 100644
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| --- a/sdk/lib/coreimpl/regexp.dart
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| +++ b/sdk/lib/coreimpl/regexp.dart
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| @@ -3,9 +3,9 @@
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|  // BSD-style license that can be found in the LICENSE file.
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|  
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|  class JSSyntaxRegExp implements RegExp {
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| -  external JSSyntaxRegExp(String pattern,
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| -                          {bool multiLine: false,
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| -                           bool ignoreCase: false});
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| +  external const JSSyntaxRegExp(String pattern,
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| +                                {bool multiLine: false,
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| +                                 bool ignoreCase: false});
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|    external Match firstMatch(String str);
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|    external Iterable<Match> allMatches(String str);
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|    external bool hasMatch(String str);
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| 
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