// 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.

/*@testedFeatures=inference*/
library test;

test() {
  for (var /*@ type=int* */ i = 0;
      i /*@target=num::<*/ < 10;
      i /*@ target=num::+ */ ++) {
    int j = i /*@target=num::+*/ + 1;
  }
}

main() {}
