anchor.diff:                ['--test_server_port'],
                 [],
                 0,
  -              'int'),
  +              type: 'int'),
             new _TestOptionSpecification(
                 'test_server_cross_origin_port',
                 'Port for test http server cross origin.',
                 ['--test_server_cross_origin_port'],
                 [],
                 0,
  -              'int'),
  +              type: 'int'),
             new _TestOptionSpecification(
                 'test_driver_port',
                 'Port for http test driver server.',
                 ['--test_driver_port'],
                 [],
                 0,
  -              'int'),
  +              type: 'int'),
             new _TestOptionSpecification(
                 'test_driver_error_port',
                 'Port for http test driver server errors.',
                 ['--test_driver_error_port'],
                 [],
                 0,
  -              'int'),
  +              type: 'int'),
             new _TestOptionSpecification(
                 'record_to_file',
                 'Records all the commands that need to be executed and writes it '
  
positive.code:               ['--write-test-outcome-log'],
                [],
                false,
                'bool'
            ),
            new _TestOptionSpecification(
                'clear_safari_cache',
                'Clear the safari cache (i.e., delete it).',
                ['--clear_safari_cache'],
                [],
                false,
                'bool'
                ),
            new _TestOptionSpecification(
                'copy_coredumps',
                'If we see a crash that we did not expect, copy the core dumps. '
  
negative.code:               ['--use-public-packages'],
                [],
                false,
                type: 'bool'),
            new _TestOptionSpecification(
                'use_repository_packages',
                'For tests using packages: Use pub.dartlang.org packages '
                'but use overrides for the packages available in the '
                'repository.',
                ['--use-repository-packages'],
                [],
                false,
                type: 'bool'),
            new _TestOptionSpecification(
                'build_directory',
                'The name of the build directory, where products are placed.',
  