[clang] [Clang] handle invalid close location in static assert declaration (PR #108701)

[Younan Zhang via cfe-commits]

zyn0217 wrote:

> Can we figure out which PR this regression came from and make sure the code change makes sense in light of that PR?

https://github.com/llvm/llvm-project/pull/102044. We have backported the P2741R3 implementation to C++11.


https://github.com/llvm/llvm-project/pull/108701