// Copyright 2009 the Sputnik authors.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
info: Multi line comment can contain SPACE (U+0020)
es5id: 7.2_A4.4_T2
description: Use real SPACE
---*/

/*CHECK#1*/
var x = 0;
/* multi line comment x = 1;*/
if (x !== 0) {
  $ERROR('#1: var x = 0; /* multi line comment x = 1;*/ x === 0. Actual: ' + (x));
}
