anchor.diff:        });
   
         test('100_ms', () async {
  -        var isNewTiming = await isDart2AsyncTiming();
  +        // var isNewTiming = await isDart2AsyncTiming();
           // hoping timint is ok...
           Lock lock = newLock();
   
  
positive.code:         try {
            lock.synchronized(() {
              ran4 = true;
            }, timeout: new Duration(milliseconds: 500));
          } on TimeoutException catch (_) {}
  
          // waiting long enough
          await lock.synchronized(() {
            ran3 = true;
          }, timeout: new Duration(milliseconds: 500));
  
          expect(ran1, isFalse, reason: "ran1 should be false");
          expect(ran2, isNewTiming ? isTrue : isFalse,
              reason: "ran2 should be false");
          expect(ran3, isTrue, reason: "ran3 should be true");
          expect(ran4, isTrue, reason: "ran4 should be true");
  
negative.code:         bool ran4 = false;
          // hold for 5ms
          lock.synchronized(() async {
            await sleep(500);
          });
  
          try {
  