Enum constructor from "extends" values

[halloleo]

@BalmungSan

IMHO, the language should have two constructs, enum and adt, and enum should be very close to what Enumeratum provides. But that boat already sailed.

I understand this now (see Scala 3 Enum vs Enumerations - #3 by philipschwarz) and I totally agree: To use enum to create Haskell-like ADTs in a concise manneris slightly weird.