Fix a couple of mistakes that are only relevant if
sizeof(zend_long) > sizeof(size_t).
* Fix cast order in string offset check: Negation should happen
after the (zend_long) cast, otherwise sign extension does not
occur.
* Use Z_UL in zend_inference.
* Use aligned size for HT_USED_SIZE in zend_persist: The issue is
that on x86-32 uint64_t is considered to be 4-aligned, so the
alignment assumption does not hold.
Nikita Popov
daa2b75c76