CBQE-2002: tuq: add tests for IN expr

Change-Id: Id65615a119ada43ed85f3f7bb57ab5de7cd4a80f
Reviewed-on: http://review.couchbase.org/33404
Reviewed-by: Iryna Mironava <irynamironava@yandex.ru>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>