CBQE-2458: update n1ql tests

Change-Id: I7b38e153e5d63201752d8e3c63e09310add1cc45
Reviewed-on: http://review.couchbase.org/43280
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Iryna Mironava <irynamironava@yandex.ru>