anchor.diff:      return list;
     }
   
  +  get isConnected => _connected;
  +
  +  get parameters => _parameters;
  +
  +  toString() {
  +    return "PostgresClient(connected: ${_connected}, "
  +        "parameters: ${inspect(_parameters)})";
  +  }
  +
   }
   
   
  
positive.code: 
  class PostgresClient {
  
    var _socket, _connected = false, _stage, _list, _foreign;
  
    PostgresClient() {
      _list = new Uint8List(4);
  
negative.code:     var b = _socket.readNext();
      if (b != null) {
        p(["xxx", b.asUint8List()]);
        parseServerResponse(b.asUint8List());
      }
      p("end.");
  