ext/gmp: use zend_object_alloc instead to initialize GMP instances. (#17822)

Author: devnexen

ext/gmp/gmp.c

@@ -208,7 +208,7 @@ static void gmp_free_object_storage(zend_object *obj) /* {{{ */
 
 static inline zend_object *gmp_create_object_ex(zend_class_entry *ce, mpz_ptr *gmpnum_target) /* {{{ */
 {
-	gmp_object *intern = emalloc(sizeof(gmp_object) + zend_object_properties_size(ce));
+	gmp_object *intern = zend_object_alloc(sizeof(gmp_object), ce);
 
 	zend_object_std_init(&intern->std, ce);
 	object_properties_init(&intern->std, ce);