[PATCH] D92742: [clang] Add support for attribute 'swift_async'

[Doug Gregor via Phabricator via cfe-commits]

doug.gregor accepted this revision.
doug.gregor added a comment.
This revision is now accepted and ready to land.

This looks good. I went ahead and tested it as part of adoption in Swift's Clang importer, over at https://github.com/apple/swift/pull/34985


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https://reviews.llvm.org/D92742