Some tests need to use hidden APIs to check the internal state of
the framework. For those special use cases, we add a new flag to
ActivityManagerService.startInstrumentation that enables to start
instrumented processes without hidden API enforcement. Individual
test harnesses can change their Am command to request the exemption.
Bug: 64382372
Test: adb shell am instrument --no-hidden-api-checks <component>
adb logcat | grep 'Accessing hidden'
Change-Id: I1d734a95423fae90dae63ff09d5f606495830905
d5d4217ece