| Index: tests/compiler/dart2js/mock_compiler.dart
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| diff --git a/tests/compiler/dart2js/mock_compiler.dart b/tests/compiler/dart2js/mock_compiler.dart
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| index 0f59366fa0c84aae863fc723d7562f8025b57d5e..6c759d4461c60c00b0933d09e6af85f395522b0b 100644
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| --- a/tests/compiler/dart2js/mock_compiler.dart
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| +++ b/tests/compiler/dart2js/mock_compiler.dart
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| @@ -52,6 +52,7 @@ typedef String LibrarySourceProvider(Uri uri);
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|  
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|  class MockCompiler extends Compiler {
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|    api.CompilerDiagnostics diagnosticHandler;
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| +  final api.CompilerInput provider = null;
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|  
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|    /// Expected number of warnings. If `null`, the number of warnings is
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|    /// not checked.
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| 
 |