Currently, test results are alternately referred to in the db api
as "test", "results", and "test_result" These varying terminology
choices will become even more obfuscating as we begin using the
new subunit data api, as both "tests" and "results" have very
different semantic meanings within the context of subunit2sql.
This patch will convert all previously used variations to the
more semantically clear phrasing "test_result".
Updating the database to use clearer phrasing may prove to be
worth doing as well, but because I anticipate that that may
end up requiring a bit more discussion.
Change-Id: Ica54b5b8095bd00217aa2ffefab898306c888c3f
bac44feda1