The cases that used to live in this directory covered
https://github.com/jsh9/pydoclint/issues/216.

They were moved to the parametrized option-matrix test
testFunctionArgumentNameCategoryOptions() in tests/test_main.py.
That test uses the shared fixture at
tests/test_data/name_category_options/function_arguments.py.

This directory is retained so the historical edge-case numbering remains
understandable.
