anchor.diff:    }
   
     void test_resolve_unknown_uri() {
  -    UriResolver resolver = new CustomUriResolver({
  -      'custom:library': '/path/to/library.dart',
  -    });
  +    UriResolver resolver =
  +        new CustomUriResolver({'custom:library': '/path/to/library.dart',});
       Source result =
           resolver.resolveAbsolute(parseUriWithException("custom:non_library"));
       expect(result, isNull);
  
positive.code:   runReflectiveTests(UriKindTest);
  }
  
  @reflectiveTest
  class ContentCacheTest {
    void test_setContents() {
  
negative.code:     Source result = resolver
          .resolveAbsolute(parseUriWithException("package:some/file.dart"));
      expect(result, isNull);
    }
  }
  
  