[llvm-branch-commits] [llvm] [NFC] Updating RTS0 namespace to contain all elements related to it's representation (PR #141173)

[Finn Plummer via llvm-branch-commits]

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

Ha the diff confused me, the diff makes it look like `RootDescriptor` is moving namespaces but in reality it is all the ones in between that are changing.

https://github.com/llvm/llvm-project/pull/141173