Merge "Allow visual stashing when going to overview in tests" into sc-v2-dev am: d523841ab4 am: 06743b6818

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15889760

Change-Id: If51a0502c0c5c2677c923f5deb596d6d04e3ddbf