[llvm-branch-commits] [clang] release/20.x: [clang] Reject constexpr-unknown values as constant expressions more consistently (PR #130658)

[Shafik Yaghmour via llvm-branch-commits]

https://github.com/shafik commented:

Thank you for backporting these changes!

https://github.com/llvm/llvm-project/pull/130658