Issue #2035087 by lazysoundsystem, Crell, Cottser: Remove remaining t() from test assert messages in views and views_ui

Issue #1998192 by damiankloip, dawehner: Allow the boolean labels of exposed filters to be configurable.

Issue #1876942 by damiankloip, dawehner, tim.plunkett: Use direct methods instead of arrayAccess for display handlers.

Issue #1828642 by tim.plunkett, xjm, dawehner: Convert as many Views tests as possible to DrupalUnitTestBase.