freedreno: longstanding flaky tests (fragment_out, transform_feedback)
Counts of top flakes reported to #freedreno-ci
in January 2020:
423 dEQP-GLES3.functional.fragment_out.random.28
323 dEQP-GLES3.functional.fragment_out.random.82
175 dEQP-GLES3.functional.fbo.blit.conversion.r16ui_to_r8ui
149 dEQP-GLES3.functional.fragment_out.random.47
123 dEQP-GLES3.functional.transform_feedback.array_element.interleaved.triangles.lowp_mat2x4
92 dEQP-GLES3.functional.fragment_out.random.88
43 dEQP-GLES3.functional.fbo.msaa.2_samples.stencil_index8
39 dEQP-GLES31.functional.layout_binding.ssbo.fragment_binding_array
23 dEQP-GLES3.functional.fragment_out.random.27
This set has been failing for a long time, and doesn't seem to be related to #2486 (closed)