All builtins of gl_out, like gl_out[].gl_Position need to be considered active as well. Bug: angleproject:5557 Test: dEQP-GLES31.functional.tessellation.shader_input_output.gl_position_tcs_to_tes Change-Id: I74aeef86be573dc8df17472b88acd521032d7921 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2786630 Commit-Queue: Mohan Maiya <m.maiya@samsung.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
