Skip the two tests in test/arrays/deitz/parallelism/stream/ for --baseline

These tests are to ensure that our default settings (--fast-follower enabled)
utilize fast followers and create the right number of tasks for parallel work.
Since both are intended and --baseline turns off --fast-followers, it doesn't
make sense to run these tests under --baseline.
Merge pull request #741 from lydia-duncan/streamFastFollowersBaseline

Skip the two tests in test/arrays/deitz/parallelism/stream/ for --baseline
[reviewed by vass]

These tests are to ensure that our default settings (--fast-follower enabled)
utilize fast followers and create the right number of tasks for parallel work.
Since both are intended and --baseline turns off --fast-followers, it doesn't
make sense to run these tests under --baseline.  Ideally, we would want
to have the test throw --fast-followers when --baseline is thrown, but our test
system at the moment does not allow this and it doesn't seem like a big
deal to get this to run with --baseline, so skipping for
COMPOPTS <= --baseline seems like the right choice.  Throwing
--fast-followers for every setting struck me as defeating the point of
the test, so that option was ruled out.