CBQE-1176: Automate use case: MB-7602

test_restart_node_with_full_disk

Change-Id: I9e1e875d3ed64d5b893f1e7359f071f36bdb565b
Reviewed-on: http://review.couchbase.org/25968
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>