# 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: |
  <<<< "v1"
  ==== ["null","value"]
  var field;
  >>>>
  main() {
  <<<<
    print("v1");
  ====
    print(field);
    field = "value";
    print(field);
  >>>>
  }
