[llvm] [ARM] Ignore register tuples when emitting CodeView locations (PR #222347)

[Eli Friedman via llvm-commits]

https://github.com/efriedma-quic commented:

It's a but ugly to be discarding the debug info like this.  Is there some alternative way to represent this construct?  What, if anything, does MSVC do?

If we have to discard the debug info, though, this is the right way to do it, I guess.

https://github.com/llvm/llvm-project/pull/222347