268       gco2lcl(o)->gclist = g->gray;  in reallymarkobject()
269       g->gray = o;  in reallymarkobject()
273       gco2ccl(o)->gclist = g->gray;  in reallymarkobject()
274       g->gray = o;  in reallymarkobject()
278       linktable(gco2t(o), &g->gray);  in reallymarkobject()
282       gco2th(o)->gclist = g->gray;  in reallymarkobject()
283       g->gray = o;  in reallymarkobject()
287       gco2p(o)->gclist = g->gray;  in reallymarkobject()
288       g->gray = o;  in reallymarkobject()
338   g->gray = g->grayagain = NULL;  in restartcollection()
523   GCObject *o = g->gray;  in propagatemark()
529       g->gray = h->gclist;  /* remove from 'gray' list */  in propagatemark()
535       g->gray = cl->gclist;  /* remove from 'gray' list */  in propagatemark()
541       g->gray = cl->gclist;  /* remove from 'gray' list */  in propagatemark()
547       g->gray = th->gclist;  /* remove from 'gray' list */  in propagatemark()
556       g->gray = p->gclist;  /* remove from 'gray' list */  in propagatemark()
567   while (g->gray) propagatemark(g);  in propagateall()
572   lua_assert(g->gray == NULL);  /* no grays left */  in propagatelist()
573   g->gray = l;  in propagatelist()
1052       if (g->gray) {  in singlestep()