[flang] [llvm] [mlir] Re-apply (#117867): [flang][OpenMP] Implicitly map allocatable record fields (PR #120374)

[Kazu Hirata via llvm-commits]

kazutakahirata wrote:

> > @kazutakahirata it would be great if you can run locally with the patch to verify it compiles 🙏.
> 
> Thanks! I'm on it. I'll let you know soon.

With your new patch, my local tree builds fine (`x86_64-linux` + clang 16 + `-DLLVM_ENABLE_WERROR=On`).  Both `check-flang` and `check-mlir` seem to be happy.  Thanks!

https://github.com/llvm/llvm-project/pull/120374