[Bro-Dev] switch/case type recognition

[Matthias Vallentin]

> A 'vector of any' also qualifies as an 'any', so while the error
> message of "duplicate case label" could possibly be improved, I think
> it's still correct in that it is meant to prevent an ambiguous case
> match.

Yeah, with that reasoning anything qualifies as "any", so adding "any"
should never show up in a "case type" statement. Probably a better way
to handle "any" is by just using the "default" case.

    Matthias