[clang] [WinEH] Fix crash when aligning parameters larger than ABI (PR #180905)

[Eli Friedman via cfe-commits]

https://github.com/efriedma-quic commented:

This is basically what I'd expect the patch to look like... but don't you need to dereference the alloca somewhere?

https://github.com/llvm/llvm-project/pull/180905