cconv
? cconv(unconst_tnode($2))->tn_type
tnode_t *cconv(tnode_t *);
tn = cconv(tn);
tn = cconv(tn);
rn = cconv(rn);
ln = cconv(ln);
rn = cconv(rn);
ln = cconv(ln);
tn = cconv(tn);
arg = cconv(arg);
func = cconv(func);
tn = cconv(tn);