| // Copyright (c) 2017, 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 file. | |
| // @dart=2.9 | |
| /*@testedFeatures=inference*/ | |
| library test; | |
| String foo(obj) => obj is String | |
| ? /*@promotedType=String**/ obj | |
| . /*@target=String.toUpperCase*/ toUpperCase() | |
| : null; | |
| main() {} |