[clang] [llvm] [WebAssembly] Implement an alternative translation for -wasm-enable-sjlj (PR #84137)

[Sam Clegg via cfe-commits]

https://github.com/sbc100 commented:

Thanks for working on this!

I'm excited to see this land and become less emscripten-specific. 

I'm hoping that once we get the emscripten side landed we can remove the new option very soon too.


https://github.com/llvm/llvm-project/pull/84137