Use consistent type for h on call zend_hash_index_*

[marc-mabe]

zend_hash_index_* expects zend_ulong for the h argument but often this argument got casted to zend_long (instead of zend_ulong.

Additionally, most of the time, a pointer first got casted to (uintptr_t) before (zend_ulong) but sometimes a pointer got casted directly. I noticed this during my work of #19079 as it fails if the pointer size and zend_ulong differs.

[devnexen]

changes look correct to me cc @nielsdos

[nielsdos]

The changes are right, although also kinda not necessary at this point.