* zend_ini: Make `ZEND_INI_GET_ADDR()` return a `void*` pointer
Since the actual type of the storage location is not known, a `void*` is more
appropriate and avoids explicit casts that are no more safe than the implicit
cast from `void*`.
* tree-wide: Remove explicit casts of `ZEND_INI_GET_ADDR()`
* UPGRADING.INTERNALS