Description:
------------
I can't delete directory after use DirectoryIterator. I read http://bugs.php.net/bug.php?id=35997

Reproduce code:
---------------
<?php

$root_dir_pathname = '/tmp/' . mt_rand();
mkdir($root_dir_pathname);
$DirectoryIterator = new DirectoryIterator($root_dir_pathname);
foreach ($DirectoryIterator as $SplFileInfo)
{

}

unset($DirectoryIterator);

rmdir($root_dir_pathname);

?>

Expected result:
----------------
no error

Actual result:
--------------
Warning: rmdir(/tmp/49058378) [function.rmdir]: Permission denied in C:\home\test\www\test.php on line 11