pkg/front_end/testcases/inference/null_coalescing_operator_2.dart

// 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 file.
// @dart=2.9
/*@testedFeatures=inference*/
library test;

main() {
  List<int> x;
  List<num> y = x ?? /*@ typeArgs=num* */ [];
}