anchor.diff:  }
   
   class TimelineMode {
  -  static const int SEQUENCE = 1, PARALLEL = 2;
  +  static const int sequence = 1, parallel = 2;
   }
  
positive.code:           "You can't push anything to a timeline once it is started");
      Timeline tl = _pool.get();
      tl._parent = _current;
      tl._mode = TimelineMode.PARALLEL;
      _current._children.add(tl);
      _current = tl;
    }
  
negative.code:           "You can't push anything to a timeline once it is started");
      Timeline tl = _pool.get();
      tl._parent = _current;
      tl._mode = TimelineMode.sequence;
      _current._children.add(tl);
      _current = tl;
    }
  