[llvm] [Bazel] Fix `--warn-backrefs` errors in `Analysis` target (PR #170357)

[Jordan Rupprecht via llvm-commits]

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

I think this is fine, though I wonder if we should also do this to the cmake config so the build systems are more consistent. But I don't want to block this change on doing that.

Thanks!

https://github.com/llvm/llvm-project/pull/170357