CIST_YPCALL
ci->callstatus |= CIST_YPCALL;
ci->callstatus &= ~CIST_YPCALL;
if (ci->callstatus & CIST_YPCALL) { /* was inside a pcall? */
ci->callstatus &= ~CIST_YPCALL; /* finish 'lua_pcall' */
ci->callstatus = (ci->callstatus & ~(CIST_YPCALL | CIST_STAT)) | CIST_YIELDED;
if (ci->callstatus & CIST_YPCALL)