Description:
------------
Run the test script below with:
php -n -d zend_extension=opcache.so -d opcache.enable_cli=1 test.php

and see php (opcache) enter an infinite loop that only kill -9 can break

(note that the script is meaningless but it triggers the behavior I also had with a real longer script)

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

class foo
{
    function bar()
    {
        $b = array();

        foreach ($a as $a) {
            foreach ($b as $k => $v) {
            }
            $b[$k] = $v;
        }
    }
}


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

Actual result:
--------------
php enters an infinite loop that only kill -9 can break