Attachment: Download

Issue Description:

I have a 3rd party objc framework with an anonymous enum typedef.

typedef enum {
  AnonymousEnumA = 1,
  AnonymousEnumB
} AnonymousEnum;

Using an apinotes file the goal is to import this as a closed enum in swift. Something like:

enum AnonymousEnum: Int32 {
    case a
    case b
}

The below apinotes works for a non-anonymous enum, but not for the anonymous typedef enum.

Tags:
- Name: AnonymousEnum
  EnumKind: NSEnum

Enumerators:
- Name: AnonymousEnumA
  SwiftName: AnonymousEnum.a
- Name: AnonymousEnumB
  SwiftName: AnonymousEnum.b

Build the attached (SR-7784.zip) sample project using:
swiftc -c -F . -framework VersionedKit.framework main.swift

It will fail with error:

main.swift:4:7: error: type 'AnonymousEnum' has no member 'a'
print(AnonymousEnum.a)

More information in this thread:
https://forums.swift.org/t/help-with-apinotes/12954