[llvm] [DebugInfo][InstrRef] Treat ORRWrr as a copy instr (PR #123102)

[Jeremy Morse via llvm-commits]

jmorse wrote:

> Should we change the code in copySalvageSSA as well?

I think yes -- there are pros and cons of each approach, but ultimately we should be consistent between the two passes.

https://github.com/llvm/llvm-project/pull/123102