[llvm] [llvm][test] Fix filecheck annotation typos [1/n] (PR #93673)

[Simon Pilgrim via llvm-commits]

RKSimon wrote:

@klensy The last few test failures are messy - I think you're going to have to trawl through git blame, and reach out to the relevant people (not just the last person to touch them as they might have just done a cleanup).

https://github.com/llvm/llvm-project/pull/93673