Implement From LibAFL Error for Qemu Error

[rmalmain]

No description provided.

[domenukk]

So if you're lazy we can merge this, but it might be better to find more useful errors than unknown (in almost every case)

[domenukk]

Even if we just add a special qemu or instrumentation error type

[rmalmain]

i was thinking of adding an error like instrumentation.
i don't think anything else fits too well

[rmalmain]

does it look ok like this?

[domenukk]

Is it a frontend? :D

[rmalmain]

from libafl's point of view i'd say yes :)
instrumentation sounds ok though, but i thought having a general error for specific things calling into libafl would be convenient at some point.
suggestions welcome

[domenukk]

From LibAFL's point of view the frontend is the UI, the instrumentation is the backend?
Why not Instrumentation or Runtime or something?