[clang] [clang] pointer to member with qualified-id enclosed in parentheses in unevaluated context should be invalid (PR #89713)

[Hubert Tong via cfe-commits]

hubert-reinterpretcast wrote:

The optics of having something in the release notes about this (if the bug is not fixed properly) is not good.
Meaning that I am leaning towards options (1) or (3).

https://github.com/llvm/llvm-project/pull/89713