Hi Bill.
Is there a particular reason why the Stat object one gets from a Filesystem.Base object is different than a Stdio.Stat object?
Not as far as I know.
In particular, isdir and friends are flags in the Stdio.Stat object, while they're functions in Filesystem.Stat.
Feel free to fix, but don't forget to add compat glue in lib/7.8/modules/.
/grubba