Fix func info for get_class_methods()

Author: nikic

ext/opcache/Optimizer/zend_func_info.c

@@ -98,7 +98,7 @@ static const func_info_t func_infos[] = {
 	F1("get_class_vars",          MAY_BE_FALSE | MAY_BE_ARRAY | MAY_BE_ARRAY_KEY_STRING | MAY_BE_ARRAY_OF_ANY | MAY_BE_ARRAY_OF_REF),
 	FN("get_object_vars",         MAY_BE_ARRAY | MAY_BE_ARRAY_KEY_ANY | MAY_BE_ARRAY_OF_ANY | MAY_BE_ARRAY_OF_REF),
 	FN("get_mangled_object_vars", MAY_BE_ARRAY | MAY_BE_ARRAY_KEY_ANY | MAY_BE_ARRAY_OF_ANY | MAY_BE_ARRAY_OF_REF),
-	F1("get_class_methods",       MAY_BE_NULL | MAY_BE_ARRAY | MAY_BE_ARRAY_KEY_LONG | MAY_BE_ARRAY_OF_STRING),
+	F1("get_class_methods",       MAY_BE_ARRAY | MAY_BE_ARRAY_KEY_LONG | MAY_BE_ARRAY_OF_STRING),
 	F1("get_included_files",      MAY_BE_ARRAY | MAY_BE_ARRAY_KEY_LONG | MAY_BE_ARRAY_OF_STRING),
 	FN("set_error_handler",       MAY_BE_NULL | MAY_BE_STRING | MAY_BE_ARRAY | MAY_BE_ARRAY_KEY_LONG | MAY_BE_ARRAY_OF_STRING | MAY_BE_ARRAY_OF_OBJECT | MAY_BE_OBJECT),
 	F0("restore_error_handler",   MAY_BE_TRUE),