[llvm-branch-commits] [DirectX] Register a few DXIL passes with the new PM (PR #104250)

[Justin Bogner via llvm-branch-commits]

https://github.com/bogner created https://github.com/llvm/llvm-project/pull/104250

This wires up dxil-op-lower, dxil-intrinsic-expansion, dxil-translate-metadata,
and dxil-pretty-printer to the new pass manager, both as a matter of future
proofing the backend and so that they can be used more flexibly in tests.

A few arbitrary tests are updated in order to test the new PM path, and we drop
the "print-dxil-resource-md" pass since it's redundant with the pretty printer.