mruby-os-memsize/memsize.c: add fall through comment.
@@ -148,6 +148,7 @@ os_memsize_of_object(mrb_state* mrb, mrb_value obj)
case MRB_TT_BIGINT:
#if defined(MRB_USE_BIGINT)
size += mrb_bint_memsize(obj);
+ /* fall through */
#endif
case MRB_TT_DATA:
case MRB_TT_ISTRUCT:
