Description:
------------
__autoload does not works in class destructor when path in autoload is relative

Test script:
---------------
function __autoload($class_name){
	$res=include_once('./'.$class_name.'.class.php');
}
class Test1{
	public function __destruct(){
		$obj = new Test2;
	}
}
$test= new Test1;

//other file
class Test2{}

Expected result:
----------------
class autoload

Actual result:
--------------
on windows

Warning: include_once(./Test2.class.php) [function.include-once]: failed to open stream: No such file or directory in C:\VertrigoServ\www\index.php on line 3

same on Fedora