Add a test that checks that uniforms with an array type are allowed in
ESSL3.00.

TEST=angle_unittests
BUG=angleproject:1061

Change-Id: I6c9e8eeb3e8a6b81522c87039b93bcc0008ae317
Reviewed-on: https://chromium-review.googlesource.com/285481Tested-by: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Zhenyao Mo <zmo@chromium.org>