[swift-evolution] Proposal: Enum 'count' functionality

[Pierre Monod-Broca]

+1 for an ordered collection of all cases, it could be an ordered set to please proponents of a set.

I have no strong opinions about the name
`cases` is good, but I agree it begs to do ''for case in SomeEnum.cases''
`values` is good, and IMO it's consistent with `rawValue` when there is one, not confusing

-- 
Pierre

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