[llvm] [LowerInvoke] Use createCallMatchingInvoke instead of rolling it ourselves (PR #200536)

[Justin Lebar via llvm-commits]

jlebar wrote:

> Probably makes sense just as a code cleanup?

sgtm, done!  (Mostly, I don't want to overwhelm you with code cleanups!)

https://github.com/llvm/llvm-project/pull/200536