anchor.diff:    }
   
     Future<Iterable<Iterable<String>>> addFileSystemEntity(String name) {
  -    FileSystemEntityType type = FileSystemEntity.typeSync(name);
  +    final type = FileSystemEntity.typeSync(name);
   
       if (type == FileSystemEntityType.directory) {
         return Directory(name)
  
positive.code: }
  
  void main([List<String> args]) {
    ArgParser parser = ArgParser();
    parser.addOption('output',
        abbr: 'o',
        help: 'Output file for tags (default: stdout)',
        valueHelp: 'FILE');
    parser.addFlag('follow-links',
        help: 'Follow symbolic links (default: false)', negatable: false);
    parser.addFlag('include-hidden',
  
negative.code:   parser.addFlag('skip-sort',
        help: 'Skip sorting the output (default: false)', negatable: false);
    parser.addFlag('help', abbr: 'h', help: 'Show this help', negatable: false);
    final options = parser.parse(args);
    if (options['help'] as bool) {
      print(
          'Usage:\n\tdart_ctags [OPTIONS] [FILES...]\n\tpub global run dart_ctags:tags [OPTIONS] [FILES...]\n');
  