[automerger skipped] Merge "Add Nullability Annotations and verification to CellIdentity" am: bf003b77a2 am: a48e8b71fb am: 2324bd98b4 -s ours
am skip reason: Change-Id Ie98db2ce393a76644a4773045eafc28ce6f4a4cb with SHA-1 33f62a071c is in history

Change-Id: I36c9e7d88fdf792f942f2c444e7d9573654b26ef