[llvm] [NFCI][Coroutines] update tests to autogenerated formatting (PR #178358)

[Christian Ulmann via llvm-commits]

https://github.com/Dinistro commented:

I'm not aware of any guidelines, so I might miss something, but doesn't this just make the test exceptionally rigid and hard to evolve?
I had a lot of problems evolving features in some other parts of the mono repo, because dozens of tests strictly check everything, even when that wasn't really the point of the test.



https://github.com/llvm/llvm-project/pull/178358