[clang] fix issue 73559. (PR #74926)

[Mariya Podchishchaeva via cfe-commits]

https://github.com/Fznamznon commented:

Could you please add a test, somewhere in `clang/test/Parser` (there is also a lot of other tests showing how it is done) and a release note to `clang/docs/ReleaseNotes.rst`, perhaps at the end of the list under `Bug Fixes in This Version` heading.

https://github.com/llvm/llvm-project/pull/74926