[llvm] [IR] Avoid collecting COMDATs for non-module printing (PR #221460)

[Alexis Engelke via llvm-commits]

https://github.com/aengelke approved this pull request.

LGTM with nit. I think this direction is much more preferable, I didn't like the new API (but dislike alone is also a bad reason to reject a PR without data...)

In the future, I'd suggest not to recycle PRs for vastly different changes, though.

https://github.com/llvm/llvm-project/pull/221460