rules for (elem False) and (notElem True)

[jvoigtlaender]

Among other things, these would allow more fusion. For example, I had a student code:

False `elem` map (...) (...)

There is no rule about elem and map, but with one of the newly proposed rules the above becomes

any not (map (...) (...))

after which https://github.com/ndmitchell/hlint/blob/23d5d2211892935167862d72905b809cc0693dad/data/hlint.yaml#L192 can fire.

[ndmitchell]

Thanks!