CUT_TAIL         707 ext/racc/cparse/cparse.c         CUT_TAIL(v->vstack, len);
CUT_TAIL         710 ext/racc/cparse/cparse.c             CUT_TAIL(v->tstack, len);
CUT_TAIL         712 ext/racc/cparse/cparse.c         CUT_TAIL(v->state, len);