[flang-commits] [flang] [flang] Fix extra "./" prefix in source file paths (PR #186212)

[Tarun Prabhu via flang-commits]

https://github.com/tarunprabhu commented:

Why LocateSourceFile is being passed a file name with `./` already prepended to it even if that was not what the user typed in? Should we be looking to fix this higher up in the call chain?

https://github.com/llvm/llvm-project/pull/186212