[flang-commits] [flang] [NFC][flang][OpenMP] Create `FortranUtils` lib and move `createMapInfoOp` to it (PR #154483)

[Abid Qadeer via flang-commits]

abidh wrote:

> > > The `Support` library in llvm is probably a good example to follow in what should we add here or not.
> > 
> > 
> > Can you please elaborate on this? Is there anything that we can imitate here?
> 
> @abidh static libs + debug work (builds and lit tests). dynamic libs + debug fails to link even without the changes in this PR (on `main`):
> 
> ```
> /home/kaergawy/git/aomp21.0/llvm-project/flang/include/flang/Common/indirection.h:88: undefined reference to `Fortran::common::die(char const*, ...)'
> /usr/bin/ld: tools/flang/lib/Optimizer/Builder/CMakeFiles/FIRBuilder.dir/IntrinsicCall.cpp.o: ....
> ```

I will investigate this failure.

https://github.com/llvm/llvm-project/pull/154483