Merge "Dump accessibility hierarchy on test failure" into sc-v2-dev am: 8aac1952af am: 3ac216c4bb

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15364776

Change-Id: I278d73506a7535f88d05d04ef55043794c37ed10