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'
Merged-In: I1d734a95423fae90dae63ff09d5f606495830905
Change-Id: Ifbb0d19d95737a9f601b11e20352cdc11f0ca5b6
27be1e9ba4