[flang] f2py and flang treat parameters poorly

I am reposting here because it might be more topical, or someone just has experience with this.

Please see the issue I created [here](https://github.com/numpy/numpy/issues/32148)

Start by reading the linked NumPy issue 32148, then determine how f2py and flang currently handle parameters and what behavior is expected. The report does not name files, tests, or a reproducible case, so a concrete scope and completion condition must be established before implementation.

Written by the indexing model from the issue text.