[llvm-branch-commits] [llvm] release/19.x: [WebAssembly] Fix rethrow's index calculation (#114693) (PR #115844)

[Tobias Hieta via llvm-branch-commits]

tru wrote:

This is a pretty big patch to bring into a backport. How risky is this and how important is this to end up in a backport?

https://github.com/llvm/llvm-project/pull/115844