pkg/front_end/testcases/inference/type_promotion_stopped_by_mutation_in_a_closure.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.md file.

/*@testedFeatures=inference*/
library test;

main() {
  num n = null;
  if (n is int) {
    var /*@ type=num* */ i = n;
  }
  /*@ returnType=Null? */ () {
    n = null;
  };
}