pkg/front_end/testcases/inference/type_promotion_not_and_not.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;

void f(Object x) {
  if (x is! int && x is! String) {
    print(x);
  }
}

main() {}