Bug 1548261 - Run wrench reftests in debug also. r=kvark
Bug 1548261 - Run wrench reftests in debug also. r=kvark

Differential Revision: https://phabricator.services.mozilla.com/D29663

[wrupdater] From https://hg.mozilla.org/mozilla-central/rev/64764e9099c829a0fff5ea37d3b012c4835e1503

servo/webrender,servo/webrender,servo/webrender,servo/webrender,servo/webrender,servo/webrender