Float-int conversion functions are defined to always return highp values. BUG=angleproject:865 TEST=angle_unittests Change-Id: Idf243b483f7b5edfcb54de2755af11e17c3756d3 Reviewed-on: https://chromium-review.googlesource.com/262413Tested-by: Olli Etuaho <oetuaho@nvidia.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Nicolas Capens <capn@chromium.org>
