[llvm] [CodeGen][NewPM] Use verify-each option in npm tests (NFC). (PR #107373)

[Matt Arsenault via llvm-commits]

https://github.com/arsenm commented:

I don't think this should just be thrown on any test. I would expect this to be the default in EXPENSIVE_CHECKS builds, and not be required clutter. 

https://github.com/llvm/llvm-project/pull/107373