[clang-tools-extra] Support renaming designated initializers (PR #86976)

[Piotr Zegar via cfe-commits]

https://github.com/PiotrZSL commented:

Release notes entry is missing. Should be:

"Improved [readability-identifier-naming](https://clang.llvm.org/extra/clang-tidy/checks/readability/identifier-naming.html) check in GetConfigPerFile mode by resolving symbolic links to header files. Fixed handling of Hungarian Prefix when configured to LowerCase. Added support for renaming designated initializers."

in clang-tools-extra/docs/ReleaseNotes.rst


Fix pointed out issues, and could land.

https://github.com/llvm/llvm-project/pull/86976