anchor.diff:      // execute [run] below.  Without this, the 'dart help run' reports the
       // command pub with no commands or flags.
       final command = sdk.dart;
  -    final args = ['--help'];
  +    final args = [
  +      '--help',
  +      if (verbose) '--verbose',
  +    ];
   
       log.trace('$command ${args.first}');
   
  
positive.code: 
      // Starting in ProcessStartMode.inheritStdio mode means the child process
      // can detect support for ansi chars.
      var process = await Process.start(sdk.dart, args,
          mode: ProcessStartMode.inheritStdio);
      return process.exitCode;
    }
  
negative.code: 
  class RunCommand extends DartdevCommand<int> {
    final ArgParser argParser = ArgParser.allowAnything();
    final bool verbose;
    RunCommand({this.verbose = false}) : super('run', '''
  Run a Dart file.''');
  
    @override
  