[PATCH] D123447: [Clang] Fix unknown type attributes diagnosed twice with [[]] spelling

[Aaron Ballman via Phabricator via cfe-commits]

aaron.ballman accepted this revision.
aaron.ballman added a comment.

I did some minor changes to the release note, but otherwise LGTM!



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Comment at: clang/docs/ReleaseNotes.rst:116-117
   This fixes Issue `Issue 53488 <https://github.com/llvm/llvm-project/issues/53488>`_.
+- Unknown attributes with [[]] spelling now will only be warned once.
+  This fixes Issue `Issue 54817 <https://github.com/llvm/llvm-project/issues/54817>`_.
 
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