anchor.diff:  
     static void main() {
       init();
  -    PingPongGame pingPongGame = new PingPongGame.play();
  +    PingPongGame pingPongGame = new PingPongGame();
     }
   
     static var _run;
  
positive.code:       shutdown();
        Benchmark1.add_result((1.0 * _iterations * Benchmark1.MESSAGES) / time);
        if (Benchmark1.run() < Benchmark1.RUNS) {
          new PingPongGame.play();
        } else {
          print("PingPong: ", Benchmark1.get_result());
        }
  
negative.code: 
  class PingPongGame {
  
    PingPongGame()
        : _ping = new ReceivePort(),
          _pingPort = _ping.toSendPort(),
          _pong = null,
  