[libcxx-commits] [libcxx] [libc++][bit] Improves rotate functions. (PR #98032)

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llvmbot wrote:

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Failed to cherry-pick: [79caa06](https://github.com/llvm/llvm-project/commit/79caa066ea6d4f2479aed6a28c6c04fd7857bec8)

https://github.com/llvm/llvm-project/actions/runs/10236763148

Please manually backport the fix and push it to your github fork.  Once this is done, please create a [pull request](https://github.com/llvm/llvm-project/compare)

https://github.com/llvm/llvm-project/pull/98032