Replace OBJ_PROP_PTR_TO_NUM() with zend_get_property_info_for_slot()

I wasn't aware such a function already existed.

Author: iluuu1994

Zend/zend_compile.h

@@ -438,8 +438,6 @@ typedef struct _zend_property_info {
 	((uint32_t)(XtOffsetOf(zend_object, properties_table) + sizeof(zval) * (num)))
 #define OBJ_PROP_TO_NUM(offset) \
 	((offset - OBJ_PROP_TO_OFFSET(0)) / sizeof(zval))
-#define OBJ_PROP_PTR_TO_NUM(obj, prop) \
-	(((char*)prop - (char*)obj->properties_table) / sizeof(zval))
 
 typedef struct _zend_class_constant {
 	zval value; /* flags are stored in u2 */

Zend/zend_property_hooks.c

@@ -141,8 +141,7 @@ static void zho_declared_it_fetch_current(zend_object_iterator *iter)
 		} else if (Z_TYPE_P(property) != IS_REFERENCE) {
 			ZVAL_MAKE_REF(property);
 
-			zend_class_entry *ce = zobj->ce;
-			zend_property_info *prop_info = ce->properties_info_table[OBJ_PROP_PTR_TO_NUM(zobj, property)];
+			zend_property_info *prop_info = zend_get_property_info_for_slot(zobj, property);
 			if (ZEND_TYPE_IS_SET(prop_info->type)) {
 				ZEND_REF_ADD_TYPE_SOURCE(Z_REF_P(property), prop_info);
 			}