[clang] [clang] Fix a use-after-free in expression evaluation (PR #118480)

[Viktoriia Bakalova via cfe-commits]

VitaNuo wrote:

> need to pass -std=c++20.
> passing -DLLVM_USE_SANITIZER=Address in your cmake configuration should be enough for that.

Makes sense, I could reproduce the example.

https://github.com/llvm/llvm-project/pull/118480