There was no real reason (apart from historical) to have the
hashed-storage tests in another hierarchy from the rest of the unit/QC
tests. Self-accepting as trivial and test-related.
patch 0b5ac24c9130b2fc81a447850e2ce8071711ac56
Author: Guillaume Hoffmann <guillaumh@gmail.com>
Date: Tue Apr 3 18:05:40 -03 2018
* move Storage.Hashed.Test to Darcs.Test.HashedStorage