LaunchThread
status_t LaunchThread(CppUnit::TestResult *result);
status_t err = i->second->LaunchThread(result);
err = fThreadManager.LaunchThread(thread);
status_t LaunchThread(RegistrarThread *thread);
CHK(manager.LaunchThread(thread) == B_OK);
CHK(manager.LaunchThread(thread) == B_OK);
CHK(manager.LaunchThread(thread) == B_OK);
CHK(manager.LaunchThread(thread) == B_OK);
CHK(manager.LaunchThread(thread) == B_OK);
CHK(manager.LaunchThread(thread) == B_NO_MORE_THREADS);
CHK(manager.LaunchThread(thread) == B_OK);
CHK(manager.LaunchThread(thread) == B_NO_MORE_THREADS);