This simulates aztec ruin's usage. This works properly on native OpenGL
but generates validation error on vulkan backend and renders incorrect
as well.

Bug: b/175584609
Test: FramebufferTest_ES3.SampleFromAttachedTextureWithDifferentLOD
Change-Id: I402c205a1b625669cae29ee201dddd144e0dfbde
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2743797Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>
Commit-Queue: Charlie Lao <cclao@google.com>