| // Copyright (c) 2020, the Dart project authors. Please see the AUTHORS file | |
| // for details. All rights reserved. Use of this source code is governed by a | |
| // BSD-style license that can be found in the LICENSE.md file. | |
| // @dart=2.9 | |
| x.y = 42; | |
| x.z = true; | |
| void foo() { | |
| if (x != null) {} | |
| if (null != x) {} | |
| } | |
| main() {} |