anchor.diff:            'create',
             'TestFlutteriPhoneWithWatch',
             'com.apple.CoreSimulator.SimDeviceType.iPhone-11',
  -          'com.apple.CoreSimulator.SimRuntime.iOS-13-2',
  +          iOSSimRuntime,
           ],
           canFail: false,
           workingDirectory: flutterDirectory.path,
         );
   
  +      // Create watchOS simulator.
         watchDeviceID = await eval(
           'xcrun',
           <String>[
  
positive.code: 
        section('Create build for a simulator device');
  
        // Create iOS simulator devices.
        phoneDeviceID = await eval(
          'xcrun',
          <String>[
  
negative.code:           'create',
            'TestFlutterWatch',
            'com.apple.CoreSimulator.SimDeviceType.Apple-Watch-Series-5-44mm',
            watchSimRuntime,
          ],
          canFail: false,
          workingDirectory: flutterDirectory.path,
  