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[stdlib] Don't try to construct invalid UnicodeScalars in CharacterSet #13676
Inserting and removing a single
This fixes what I believe to be a regression to the fix for SR-2988.
changed the title
[stdlib] Don't try to construct invalid `UnicodeScalar`s in CharacterSet
Jan 2, 2018
@phausler the swift-corelibs-foundation code looks like it might still align with the fix from SR-2988. It's not clear to me how to directly test swift-corelibs-foundation (I had some trouble building with the Xcode projects and workspaces), but I wouldn't be surprised if this case is already covered by that code. Are you able to confirm that?