Tests seem to be ok so far
opnum_start = get_next_op_number(CG(active_op_array));
-#ifdef ZTS
- zend_stack_apply_with_argument(&CG(loop_var_stack), ZEND_STACK_APPLY_TOPDOWN, (int (*)(void *element, void *)) generate_free_loop_var, NULL);
-#else
zend_stack_apply(&CG(loop_var_stack), ZEND_STACK_APPLY_TOPDOWN, (int (*)(void *element)) generate_free_loop_var);
-#endif
opnum_end = get_next_op_number(CG(active_op_array));