Add `provides_uses_library` example to TestUsesLibrary check.

Current test behaviour is incorrect, because libraries added via
`uses_libs`/`optional_uses_libs` ignore `provides_uses_lib` property.
The added TODO entries point at the incorrect behaviour, to be fixed in
the follow-up CLs.

Bug: 132357300
Test: m nothing

Change-Id: I35bfe227797aa37aa539e872052335677c798ee5