BroadcastQueue: tests for broadcasts that thaw.

Several broadcast flavors should cause us to consider thawing an
otherwise cached process, causing it to become immediately runnable.

This doesn't prevent other more nuanced policy from being added in
the future, such as letting a sender configure a yet-to-be-defined
BroadcastOption to delay thawing a manifest-targeted broadcast.

Bug: 253906105
Test: atest FrameworksMockingServicesTests:BroadcastRecordTest
Test: atest FrameworksMockingServicesTests:BroadcastQueueTest
Test: atest FrameworksMockingServicesTests:BroadcastQueueModernImplTest
Change-Id: I16cc7eb7fc28ba0f68b6fce92607827b71ec569a