Miptree fixes
This fixes the miptree test so it executes on non-anv drivers properly, it also fixes most of the validation errors with 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.
This fixes the miptree test so it executes on non-anv drivers properly, it also fixes most of the validation errors with it.