Sanity tests for a11y am: 7436aaff62 am: d0f3cfec7e am: 7504781cc1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/layoutlib/+/11563242

Change-Id: Icc70f2698ecfc2df7d122e7daff8abe8c69bdd76