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27
28// Test optimized implementation of postfix ++ on undefined input.
29// See http://code.google.com/p/v8/issues/detail?id=1389
30
31for (var i=0; i<4; i++) {
32  (function () {
33    (function () {
34      (function () {
35        var x;
36        y = x++;
37      })();
38    })();
39  })();
40}
41
42assertEquals(NaN, y);
43