[llvm] [UTC] Indent switch cases (PR #165212)

[Nikita Popov via llvm-commits]

https://github.com/nikic commented:

We should have a UTC test for this.

I'd also consider gating this under a new UTC version. I think this will produce just enough test churn to be annoying.

https://github.com/llvm/llvm-project/pull/165212