[clang] [llvm] [ARM] Add support for Windows SEH (PR #184953)

[Trung Nguyen via llvm-commits]

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trungnt2910 wrote:

I added a `wineh-try-catch-stack-args.ll` with a `FIXME` that describes what is missing from the current implementation.

Please let me know if I need to add any additional test cases.

https://github.com/llvm/llvm-project/pull/184953