Description:
------------
if there is exact number of opcodes before multi-catch, php freezes. adding or removing just one opcode fixes the issue.

relevant oplines:
 L64   #58    ECHO       ""
 L67   #59    NEW        "RuntimeException"       @0
 L67   #60    DO_FCALL
 L67   #61    THROW      @0
 L67   #62    JMP        J67
 L68   #63    CATCH      "FooEx"              $e  0
 L68   #64    JMP        J66
 L68   #65    CATCH      "RuntimeException"   $e  1
 L69   #66    ECHO       1
 L71   #67    RETURN     null                                 

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


function doSth()
{
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';
	echo '';

	try {
		throw new \RuntimeException();
	} catch (\FooEx | \RuntimeException $e) {
		echo 1;
	}
}

doSth();


Expected result:
----------------
1

Actual result:
--------------
php freezes