Description:
------------
php8 reports a memleak after two set_exception_handler calls combined with an __call

Test script:
---------------
class x {
	public function __construct(){
		$h = set_exception_handler([$this, 'dummyExceptionHandler']);
		$h = set_exception_handler([$this, 'dummyExceptionHandler']);
	}

	public function __call($m, $p) {}
}

new x;

Actual result:
--------------
php-8.0.0beta2/Zend/zend_object_handlers.c(1120) :  Freeing 0x00007fd2ab25d780 (232 bytes), script=/tmp/memleak.php
=== Total 1 memory leaks detected ===