| // Copyright (c) 2019, 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. | |
| extension TestExtension on int { | |
| bool get isPositive => this > 0; | |
| bool get isNegative => this < 0; | |
| } | |
| extension UnusedExtension on int { | |
| bool get isReallyZero => this == 0; | |
| } |