[PATCH] D64253: Let unaliased Args track which Alias they were created from, and use that in Arg::getAsString() for diagnostics

[Hans Wennborg via Phabricator via cfe-commits]

hans added a comment.

I think this is going to be my favourite new feature in clang 9 :-) Do you want to put a small note in docs/ReleaseNotes.rst?


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D64253/new/

https://reviews.llvm.org/D64253