[lld] [ELF] Support relocatable files using CREL (PR #98115)

[Peter Smith via llvm-commits]

smithp35 wrote:

> Will take a look as soon as I can. I'll be at a conference this week so may be a bit slow.

I've started looking, there's quite a bit to go through. I don't have any comments right now, still tracing through the changes. Hope to have something by the end of the week.

https://github.com/llvm/llvm-project/pull/98115