ClearTestES3.ScissoredClearHeterogeneousAttachments/ES3_D3D11

Bug: angleproject:5237
Change-Id: I3f3c062e23d77b4621df13ea75f7910ed22ab983
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2496144Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>