This feature was requested by developers to allow non-conformant shaders
to be used which contain mismatched precisions.

Change-Id: I57899efe064f7ffed1c0e43a508930ac70f6aa03
Reviewed-on: https://chromium-review.googlesource.com/277340Tested-by: Cooper Partin <coopp@microsoft.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>