Move io_tests to folly/io/async/test

[hiphop-php.git] / hphp / hack / test / typecheck / xor_bad3.php

<?hh
/**
 * Copyright (c) 2014, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the "hack" directory of this source tree.
 *
 *
 */

function foo(string $a, string $b): void {
  $a ^ $b;
}