anchor.diff:    }
   
     Future<bool> _runClangTidy(String flutterRoot, bool verbose) async {
  +    io.stdout.writeln('Starting clang-tidy checks.');
  +    final Stopwatch sw = Stopwatch()..start();
       // First ensure that out/host_debug/compile_commands.json exists by running
       // //flutter/tools/gn.
       final io.File compileCommands = io.File(path.join(
  
positive.code:     return true;
    }
  
    Future<bool> _runFormatter(String flutterRoot, bool verbose) {
      final String ext = io.Platform.isWindows ? '.bat' : '.sh';
      return _runCheck(
        flutterRoot,
        path.join(flutterRoot, 'ci', 'format$ext'),
        <String>[],
        'Formatting check',
        verbose: verbose,
      );
    }
  
    Future<bool> _runCheck(
  
negative.code:       errSink: errBuffer,
      );
      final int clangTidyResult = await clangTidy.run();
      sw.stop();
      io.stdout.writeln('clang-tidy checks finished in ${sw.elapsed}');
      if (clangTidyResult != 0) {
        io.stderr.write(errBuffer);
        return false;
  