nilcast          1939 src/cmd/6c/cgen.c 	if(!nilcast(t1, t2))
nilcast           709 src/cmd/cc/cc.h int	nilcast(Type*, Type*);
nilcast           624 src/cmd/cc/scon.c 		if(nilcast(n->left->type, n->type))
nilcast          1106 src/cmd/cc/sub.c 	if(!nilcast(r->left->type, r->type))