anchor.diff:  
     void update() {
       end();
  +
     }
   }
positive.code:   }
  
    void begin() {
      if (_running == false) {
        _running = true;
        _timer.start();
      }
    }
  
    int end() {
  
negative.code: class Stats {
  
    Stopwatch _timer = new Stopwatch();
  
    int _ms = 0,
        _msMin = 1000,
  