anchor.diff:  #import("testing/dart/test_suite.dart");
   
   #import("../compiler/tests/dartc/test_config.dart");
  -#import("../frog/tests/await/test_config.dart");
   #import("../runtime/tests/vm/test_config.dart");
   #import("../samples/tests/dartc/test_config.dart");
   #import("../tests/co19/test_config.dart");
  
positive.code:  * moved to here, if possible.
  */
  final TEST_SUITE_DIRECTORIES = const [
    'frog/tests/frog',
    'frog/tests/frog_native',
    'frog/tests/leg',
  
negative.code:       } else if (conf['compiler'] == 'dartc' && key == 'dartc') {
          queue.addTestSuite(new SamplesDartcTestSuite(conf));
          queue.addTestSuite(new JUnitDartcTestSuite(conf));
        }
      }
  
  