Updated openstack/openstack
Project: openstack/heat  aa40d3fd8b2a86fa35c2bd5b81963c3fc6d5dd2b

Move instance_error_causes_group_error() to functional tests

Part of blueprint decouple-nested
Change-Id: I33a9772642c6e58b4b9419330d2aa4e3f8e5cab4