isvectordef
if (isvectordef(type, REL_ALIAS))
def->def_kind != DEF_TYPEDEF || !isvectordef(def->def.ty.old_type,
if (isvectordef (cs->type, cs->rel)) {
if (isvectordef (dflt->type, dflt->rel)) {
if (isvectordef(type, rel))
!isvectordef(def->def.ty.old_type, def->def.ty.rel))
int isvectordef(const char *, relation);