anchor.diff:  }
   
   void _printResult(String label, double time) {
  -  print('$label: ${_padLeft(time.toStringAsFixed(2), 4)}ms '
  -      "${'=' * ((time * 20).toInt())}");
  +  print(
  +    '$label: ${time.toStringAsFixed(2).padLeft(4)}ms '
  +    "${'=' * ((time * 20).toInt())}",
  +  );
   }
  -
  -String _padLeft(String input, int length) {
  -  var result = input.toString();
  -  if (result.length < length) {
  -    result = ' ' * (length - result.length) + result;
  -  }
  -
  -  return result;
  -}
  
positive.code:     // Don't print the first run. It's always terrible since the VM hasn't
      // warmed up yet.
      if (i == 0) continue;
      _printResult("Run ${_padLeft('#$i', 3)}", elapsed);
    }
  
    _printResult('Best   ', best);
  
negative.code:       result = markdownToHtml(source);
      }
  
      stopwatch.stop();
      final elapsed = stopwatch.elapsedMilliseconds / runsPerTrial;
  
      // Keep track of the best run so far.
      if (elapsed >= best) continue;
  