[llvm] [NFC][LLVM] Pass/return SMLoc by value instead of const reference (PR #160797)

[Aaron Puchert via llvm-commits]

aaronpuchert wrote:

> Yeah, looking at it. It looks like this is not built in the github CI.

Yes, I think it's an experimental target. You have to explicitly enable it.

https://github.com/llvm/llvm-project/pull/160797