[llvm] [TargetLowering][COFF] Allow GlobalAlias in lowerRelativeReference (PR #220674)

[Martin Storsjö via llvm-commits]

mstorsjo wrote:

> Hi @mstorsjo , would you be able to provide a review? Thanks!

Not sure if I have anything extra to add here - I'm not sure if this touches anything that I've interacted with before - and you already got a review by @efriedma-quic whom I trust on this.

https://github.com/llvm/llvm-project/pull/220674