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

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m4arhz wrote:

Hey, just wanted to add references to the previous discussions about the issue:
Here is an implementation of the sema check: https://github.com/llvm/llvm-project/pull/151836/files
Here is another bug report about the issue: https://github.com/llvm/llvm-project/issues/82917

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