[compiler-rt] [libcxx] [libcxxabi] [libunwind] [libunwind][libcxx][libcxxabi][compiler-rt-builtins] Fix Exception Handling build for wasm (PR #79667)

[Alexander Richardson via llvm-commits]

arichardson wrote:

Could you address the raised issues instead of constantly updating the branch? This wastes CI resources and spams everyone subscribed to this PR. Please feel free to reopen it once you have addressed the issues.

https://github.com/llvm/llvm-project/pull/79667