[clang] [flang] [llvm] [openmp] [flang][driver] rename flang-new to flang (PR #110023)

[Peter Klausler via cfe-commits]

klausler wrote:

> Which I don't think the rename is at fault for.

If you rebase to current llvm-project/main, that test will (or should) work; it got broken yesterday and was fixed later.

https://github.com/llvm/llvm-project/pull/110023