| Index: tests/compiler/dart2js/mock_libraries.dart
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| diff --git a/tests/compiler/dart2js/mock_libraries.dart b/tests/compiler/dart2js/mock_libraries.dart
 | 
| index 97ad29f90faec8eaf181c95d1f915c562822e3c1..14cb27809c2ad6682c65dacb7c8ec20519c10882 100644
 | 
| --- a/tests/compiler/dart2js/mock_libraries.dart
 | 
| +++ b/tests/compiler/dart2js/mock_libraries.dart
 | 
| @@ -183,6 +183,9 @@ const Map<String, String> DEFAULT_JS_HELPER_LIBRARY = const <String, String>{
 | 
|          buildNamedFunctionType(null, null, null);
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|          buildInterfaceType(null, null);
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|        }''',
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| +  'functionTypeTest': r'functionTypeTest(f, t) {}',
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| +  'functionTypeCast': r'functionTypeCast(f, t) { return f; }',
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| +  'functionTypeCheck': r'functionTypeCheck(f, t) { return f; }',
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|    'getFallThroughError': 'getFallThroughError() {}',
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|    'getIsolateAffinityTag': 'getIsolateAffinityTag(_) {}',
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|    'getRuntimeTypeArgument':
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| 
 |