Description:
------------
See below. It is just like the #52041, but on method calls.

Test script:
---------------
<?php

class foo {
	public $x;
	
	public function test() {
		return $this->x;
	}
}

$foo = new foo;
$foo->test()->a = 1;

Expected result:
----------------
No memory leak

Actual result:
--------------
[Sun Aug 15 14:09:42 2010]  Script:  '../bug.php'
/home/felipe/dev/phptrunk/Zend/zend_execute.c(693) :  Freeing 0xB7C09524 (20 bytes), script=../bug.php
=== Total 1 memory leaks detected ===