[nfc][msan] Generate test with update_test_checks.py (#113199)

PR is to:
1. Simplify test update in #113200
2. Make tests more comprehensive, currently interesting cases looks very
basic:

```
; CHECK-LABEL: @ICmpSGTAllOnes
; CHECK: icmp slt
; CHECK-NOT: call void @__msan_warning
; CHECK: icmp sgt
; CHECK-NOT: call void @__msan_warning
; CHECK: ret i1
```

Author: vitalybuka