[llvm] [LV] Regenerate literal struct return tests with UTC. NFC (PR #160268)

[David Sherwood via llvm-commits]

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@@ -103,11 +161,29 @@ exit:
 }
 
 ; TODO: Allow mixed-struct type vectorization and mark overflow intrinsics as trivially vectorizable.
-; CHECK-REMARKS:         remark: {{.*}} loop not vectorized: call instruction cannot be vectorized
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david-arm wrote:

Should we be removing the remarks here? Looks like we're trying to test a specific case.

https://github.com/llvm/llvm-project/pull/160268