[llvm] Add --offoading option to llvm-readobj (PR #143342)

[James Henderson via llvm-commits]

jh7370 wrote:

> > Please don't force push to update a PR. Just use fixup commits, per LLVM policy (https://llvm.org/docs/GitHub.html#updating-pull-requests and the following sub-section). If you need to rebase, use a merge commit instead (it'll disappear during the squash & merge). Force pushes prevent me from easily seeing what has changed since the previous version I reviewed.
> > Also, I'd prefer it if you didn't resolve conversations in GitHub that I've started, as I use unresolved conversations to easily indicate to me whether I've reviewed and am happy with the requested change/resolution etc. [I made a post on Discourse](https://discourse.llvm.org/t/rfc-github-pr-resolve-conversation-button/73178) ages ago about this topic, if you want to read more context.
> 
> OK. My concern is that if there is a lot of back and forth in a PR review, we could have lots of commits, and then we would end up with a merge commit instead of one clean commit. But I totally understand the issue from the reviewer's perspective. I have some of the issues addressed now, and I'll push a separate commit.

The normal process for merging a PR is a Squash & Merge, which causes all the fixups and merges to be folded into one commit in main. Was that what you were worried about?

https://github.com/llvm/llvm-project/pull/143342