Bug 1624396 - update ANGLE shader validation tests to use centralized…
… WR shader list. r=gw Depends on D67961 Differential Revision: https://phabricator.services.mozilla.com/D67962 [ghsync] From https://hg.mozilla.org/mozilla-central/rev/86555508bdba0ca56663ca9b6ec92079cf06ac21