[clang] [WinEH] Fix crash, object unwinding in the except block (PR #172287)

[via cfe-commits]

GkvJwa wrote:

@rnk @efriedma-quic @MuellerMP hello, help confirm if there are any other issues. If not, I will merge it into the main branch this week. Then, handle another case.

https://github.com/llvm/llvm-project/pull/172287