[llvm] [OpenMP] Allocatable explicit member mapping fortran offloading tests (PR #111190)

[Sergio Afonso via llvm-commits]

https://github.com/skatrak approved this pull request.

Thank you Andrew, LGTM! One small nit is to check that some of the comments explaining the purpose of the tests seem to be split earlier than at 80 characters.

https://github.com/llvm/llvm-project/pull/111190