| Index: lib/src/compiler/compiler.dart
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| diff --git a/lib/src/compiler/compiler.dart b/lib/src/compiler/compiler.dart
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| index cac85b1b1f94b194ed47e383f641407f06ca7110..3abd937e406c29c2f50a40bbbccf531cc931f39b 100644
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| --- a/lib/src/compiler/compiler.dart
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| +++ b/lib/src/compiler/compiler.dart
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| @@ -362,5 +362,5 @@ final missingPartErrorCode = const CompileTimeErrorCode(
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|      'MISSING_PART', 'The part was not supplied as an input to the compiler.');
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|  
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|  /// (Public for tests) the error code used when a part is unused.
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| -final unusedPartWarningCode = const StaticWarningCode(
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| -    'UNUSED_PART', 'The part was not used by any libraries being compiled.');
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| +final unusedPartWarningCode = const StaticWarningCode('UNUSED_PART',
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| +    'The part was not used by any libraries being compiled.', null, false);
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| 
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