Merge "Background exceptions fail tests, more utils." into main

core/java/android/app/ActivityManager.java

core/java/android/os/VibrationAttributes.java

core/tests/coretests/Android.bp

.../tests/coretests/src/android/app/ActivityManagerTest.java

core/tests/coretests/src/android/os/HandlerThreadTest.java

...sts/coretests/src/android/os/VibrationAttributesTest.java

ravenwood/bulk_enable.py

...rc/android/platform/test/ravenwood/RavenwoodRuleImpl.java

...it-src/android/platform/test/ravenwood/RavenwoodRule.java

ravenwood/ravenwood-annotation-allowed-classes.txt