Description:
------------
While editing source, I findreplaced by mistake a tiny piece of my code in one of my files. I have then modified other files. When I tried to run my code, it crashed with Internal Server Error.

Reproduce code:
---------------
EXAMPLE CODE:
<?php
class foo {
	public function bar() {
		return $this->bar();	
	}
}

$f = new foo();
$f->bar();
?>

Expected result:
----------------
Internal Server Error

Actual result:
--------------
PHP Fatal Error or PHP Warning