[flang-commits] [flang] [flang][NFCI]Use config structure for MLIR to LLVM pass creation (PR #67792)

[Tom Eccles via flang-commits]

https://github.com/tblah approved this pull request.

Really nice to see this, thanks! One minor nit: feel free to ignore if you don't like it.

https://github.com/llvm/llvm-project/pull/67792