Change from iterating on all available tests to iterating on tests with
an outcome: initially we were iterating on available tests but
immediately ignoring those that were always skipped. That last part
played poorly with the new error (we want to know if the test ignored
due to a pattern was skipped in the reference component), but when
removing it, we were left with iterating on all available tests then
skipping those that don't have outcomes entries: this is equivalent to
iterating on tests with an outcome entry, which is more readable.
Also, give an error if the outcome file contains no passing test from
the reference component: probably means we're using the wrong outcome
file.
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
371165aec0