[swift-evolution] [Pitch] Refactor Metatypes

[Pyry Jahkola]

> Goffredo Marocchi wrote:
> 
> I think the names should be bikeshedded more still. From your examples they seem to make sense when I mentally add Of like TypeOf<> and SubTypeOf<>, but since you are not commenting on why that is wrong or right or misleading, or at least I have missed your reply on that, I am still a bit at loss. Maybe we need other words altogether?

OTOH, we don't have ArrayOf<Element> or DictionaryOfKeyAndValue<Key, Value>, while we still pronounce them that way. I don't think prepositions belong in the name of types but in exceptional cases, and this doesn't sound exceptional enough to me.

— Pyry