is duplicated by:

• SR-3510 Allow Enum case to conform to a protocol static function and static variable
• SR-9099 Enum case does not satisfy protocol static var

Issue Description:

Outside of pattern-matching, enum cases are used the same way static let properties are. To that end, they should be able to satisfy protocol requirements for static var { get } properties.

For example:

protocol Foo {
    static var bar: Self { get }
}

enum Baz: Foo {
    case bar
}

Right now this gives the following error:

unnamed.swift:5:6: error: type 'Baz' does not conform to protocol 'Foo'
enum Baz: Foo {
     ^
unnamed.swift:2:16: note: protocol requires property 'bar' with type 'Baz'; do you want to add a stub?
    static var bar: Self { get }
               ^
unnamed.swift:6:10: note: candidate is not a variable
    case bar
         ^