vtn: Handle SPV_INTEL_optnone
We don't advertise this in rusticl (and probably shouldn't, at least until we can honor the request) but DPC++ emits this regardless so we may as well ignore it.
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
We don't advertise this in rusticl (and probably shouldn't, at least until we can honor the request) but DPC++ emits this regardless so we may as well ignore it.