Name all DEATH tests using 'DeathTest' suffix. am: 3a4cbda66a am: 68ef6d8b8d am: 05188426fa

Original change: https://android-review.googlesource.com/c/platform/external/scudo/+/1763965

Change-Id: I3359bd093389dbb6ace37ce5c8d4823b2367e775