Merge "Add detailed exception for snappedIndex == -1 when dismissing tasks" into udc-dev am: dcbe9583fb

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/23535540

Change-Id: Id446aaa7fa907aaa4376b9d442f5bbc78a44298c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>