# 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.md file.

main.dart.patch: |
  <<<< []
  ==== {"messages":[],"hasCompileTimeError":1}
  test({b}) {
    if (?b) return b;
  }
  >>>>
  main() {
  <<<<
  ====
    test(b: 2);
  >>>>
  }
