pkg/front_end/testcases/spread_collection.dart

// 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.

main() {
  final list = <int>[1, ...[2], ...?[3]];
  print(list);
}