Description:
------------
create_function memleak

Reproduce code:
---------------
for($i = 0; $i < 1; $i ++ ){
	$s1 = memory_get_usage();
	$lambda = create_function('$hello', ' return "hello". ($hello); ');
	$lambda('Gordeev Yuri!');
	unset($lambda);
	$s2 = memory_get_usage();
}

print ($s2-$s1);


Expected result:
----------------
0

Actual result:
--------------
print ($s2-$s1); // 2232