[llvm-branch-commits] [WebAssembly] Refactor WebAssemblyExceptionInfo into Wrapper Pass (PR #210245)

[Aiden Grossman via llvm-branch-commits]

https://github.com/boomanaiden154 created https://github.com/llvm/llvm-project/pull/210245

This is to match the standard style adopted by generic CodeGen analyses
like MachineBlockFrequencyInfo. This makes WebAssemblyExceptionInfo its
own class that we then get through the wrapper pass.

The primary aim of this patch is to add enough modularity such that we
can also provide this analysis through the NewPM in a follow up patch.