Well, arguably disjunctive combination doesn't make much sense
here, because renamed import disambiguates it all enough, but
makes it impossible to merge arbitrary namespaces ad hoc, a
feature I missed several times.
I combined a re-named import with a selective import and was
surprised to find that it didn't do what I would have expected.
In the code below, I would have expected only the "test2" line to
have compiled, but it turned out that all three of these do. I'm
guessing the logic is that it imports
