dn_pdescs
for (pnp = cnp->dn_pdescs; pnp != NULL; pnp = pnp->dn_list)
dnp->dn_pdescs = pdescs;
for (arg = dnp->dn_pdescs; arg != NULL; arg = arg->dn_list) {
for (arg = dnp->dn_pdescs; arg != NULL; arg = arg->dn_list)
dt_node_list_free(&dnp->dn_pdescs);
for (arg = dnp->dn_pdescs; arg != NULL; arg = arg->dn_list)
dp.dtsp_pdescs = clause->dn_pdescs;
dt_sugar_append_clause(&dp, dt_node_clause(clause->dn_pdescs,