-> Use file pathname from the Flang frontend. It is the frontend
that is in-charge of finding the files and is hence the canonical
source for paths.
-> Convert pathname to absolute pathname while creating the moduleOp.
Co-authored-by: Peter Klausler <pklausler@nvidia.com>
Reviewed By: PeteSteinfeld, vzakhari, jeanPerier, awarzynski
Differential Revision: https://reviews.llvm.org/D141674