azu/power-doctest — pull request #5 by azu (2013-12-11 15:04:08+00:00)
Title: mutable method; // => is not correct.

When use mutable method like `Array.prototype.pop()`, may have unexpected fail.

Test case

``` js
var ary = [1,2];
ary.pop(); // => 2
```

Above code doesn't work...