[llvm] [llvm-objcopy][COFF] Support --rename-section (PR #210573)

[James Henderson via llvm-commits]

https://github.com/jh7370 commented:

I'm not a COFF expert, so there may well be intricacies that someone like @mstorsjo is better suited to reviewing. I've made a few comments on the tests though.

What's the motivation for adding this functionality? Is it something you need specifically, or is it just "I see a missing feature I could add"?

Also, you noted that you've used AI assistance for this. Could you give me an idea of how much you've used it here? I.e. how much of this PR is AI-generated versus written by yourself?

https://github.com/llvm/llvm-project/pull/210573