[llvm] [NFC][LoopFuse] Regenerate LoopFusion tests using UTC (PR #146902)

[Madhur Amilkanthwar via llvm-commits]

madhur13490 wrote:

@nikic Thanks for the review. I have pruned the list of affected tests and keeping to what is actual correct. Please have a look.

https://github.com/llvm/llvm-project/pull/146902