Add support for attachments to the Foundation cross-import overlay.

swiftlang / swift-testing

A modern, expressive testing package for Swift

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Add support for attachments to the Foundation cross-import overlay. #819

Closed grynspan closed 1 week ago

grynspan commented 2 weeks ago

This PR adds experimental support for attachments to some types in Foundation via the (non-functional) cross-import overlay. @stmontgomery is working on setting up said overlay so that it can actually be used; until then, the changes here are speculative only.

Replaces #799.