[clang] [libclang]: visit C++17 switch init statements (PR #173670)

[Corentin Jabot via cfe-commits]

https://github.com/cor3ntin commented:

Sorry about the delay.

This looks good but needs a release note.
Please add an entry to `clang/docs/ReleaseNotes.rst` in the section the most adapted to the change, and referencing any Github issue this change fixes.


In the future, feel free to ping us weekly if we fail to review your PR.

Thanks!

https://github.com/llvm/llvm-project/pull/173670