listtreecopy      339 src/cmd/gc/dcl.c 	cl = listtreecopy(cl);
listtreecopy     1380 src/cmd/gc/go.h NodeList*	listtreecopy(NodeList *l);
listtreecopy      866 src/cmd/gc/subr.c 		m->list = listtreecopy(n->list);