| Index: dart/lib/compiler/implementation/scanner/keyword.dart | 
| diff --git a/dart/lib/compiler/implementation/scanner/keyword.dart b/dart/lib/compiler/implementation/scanner/keyword.dart | 
| index 87aeaf6fd520e97dde87a0cd95fe2be4a793b833..37bed21d1bd53882e76c22759467ab5e45bad7f6 100644 | 
| --- a/dart/lib/compiler/implementation/scanner/keyword.dart | 
| +++ b/dart/lib/compiler/implementation/scanner/keyword.dart | 
| @@ -48,6 +48,7 @@ class Keyword implements SourceString { | 
| static const Keyword INTERFACE = const Keyword("interface", isPseudo: true); | 
| static const Keyword LIBRARY = const Keyword("library", isPseudo: true); | 
| static const Keyword NATIVE = const Keyword("native", isPseudo: true); | 
| +  static const Keyword NEGATE = const Keyword("negate", isPseudo: true); | 
| static const Keyword OPERATOR = const Keyword("operator", isPseudo: true); | 
| static const Keyword ON = const Keyword("on", isPseudo: true); | 
| static const Keyword SET = const Keyword("set", isPseudo: true); | 
| @@ -96,6 +97,7 @@ class Keyword implements SourceString { | 
| INTERFACE, | 
| LIBRARY, | 
| NATIVE, | 
| +      NEGATE, | 
| OPERATOR, | 
| ON, | 
| SET, | 
|  |