[5.9] Add PackageDescription platform constants for the 2023 Apple OS versions #6637
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This is a 5.9 nomination of #6636.
Add platform constants for each of the Apple platforms, to match those in the WWDC 2023 Xcode beta release.
Add a package loading unit test for checking the platform versions allowed in tools version 5.9.
rdar://107794704
(cherry picked from commit 55006dc)