[PATCH] D135273: [Clang][ObjC] Add optionality to property attribute strings.

[Alastair Houghton via Phabricator via cfe-commits]

al45tair added a comment.

@theraven Any chance you could glance over this and reassure us that it isn't going to break the GNU runtime if we do this? (We're adding an extra attribute in the property attribute string so that we can detect `@optional` properties in ObjC protocols at runtime.)


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D135273/new/

https://reviews.llvm.org/D135273