Comment 3 for bug 1642737

Some things are defined in uiop/pathname and used in uiop/filesystem, so exporting them is the right thing. There is currently no notion of "shared within uiop but not exported outside uiop". I suppose you could make do using package::qualifiers and/or import statements. Meh.

Presumably, users might experience cases where the same kind of issue arises, and may or may not want to use directory-files as an abstraction to such pathnames.

As for the TODO item, it may be old and the code of ASDF and/or CCL may have changed a lot since then, so the item may or may not be current.