Remove functions such as filter_id() where reference counts and types are
identical to what's in opcache.
Remove null types from zend_func_info.c that aren't in Reflection
(php would throw now)
Fix the Reflection type information for assert_options()
php > assert_options(ASSERT_CALLBACK, static function() {});
php > var_export(assert_options(ASSERT_CALLBACK));
Closure::__set_state(array(
))
Closes GH-4958.
5624d2eb00