`ghcup run --ghc 8.10` fails
$ ghcup run --ghc 8.10
[ Error ] The version 8.10 of the tool ghc is not installed.
Because we try too hard not to run fromVersion
: https://gitlab.haskell.org/haskell/ghcup-hs/-/blob/a34d9b7b89814ba3acf73ea4904778d727409310/app/ghcup/GHCup/OptParse/Run.hs#L222
Edited by Julian Ospald