| // 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 file. | |
| // @dart = 2.7 | |
| @pragma('dart2js:noInline') | |
| String confuse(String x) => x; | |
| @pragma('dart2js:noInline') | |
| sink(x) {} | |
| main() { | |
| confuse('x'); | |
| var m = confuse(null); | |
| // JSString.isEmpty gets inlined to 'm.length==0' | |
| sink(m. /*0:main*/ isEmpty); | |
| } |