Skip `MRB_TT_FREE` and `MRB_TT_BREAK` in `each_object`.
@@ -129,8 +129,8 @@ os_each_object_cb(mrb_state *mrb, struct RBasic *obj, void *ud)
/* filter internal objects */
switch (obj->tt) {
- case MRB_TT_ENV:
- case MRB_TT_ICLASS:
+ case MRB_TT_FREE: case MRB_TT_ENV:
+ case MRB_TT_BREAK: case MRB_TT_ICLASS:
return MRB_EACH_OBJ_OK;
default:
break;
