Updated @VisibleForTesting annotations

Author: mrichards

firebase-crashlytics/src/main/java/com/google/firebase/crashlytics/FirebaseCrashlytics.java

@@ -18,6 +18,7 @@
 import android.content.pm.PackageManager;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.annotation.VisibleForTesting;
 import com.google.android.gms.tasks.Continuation;
 import com.google.android.gms.tasks.Task;
 import com.google.android.gms.tasks.Tasks;
@@ -157,7 +158,7 @@ public Void call() throws Exception {
     return new FirebaseCrashlytics(core);
   }
 
-  // package-private for smoke tests
+  @VisibleForTesting // accessible for smoke tests
   final CrashlyticsCore core;
 
   private FirebaseCrashlytics(@NonNull CrashlyticsCore core) {

firebase-crashlytics/src/main/java/com/google/firebase/crashlytics/internal/common/CrashlyticsCore.java

@@ -79,7 +79,7 @@ public class CrashlyticsCore {
   private CrashlyticsController controller;
   private final IdManager idManager;
 
-  @VisibleForTesting(otherwise = VisibleForTesting.PRIVATE)
+  @VisibleForTesting
   public final BreadcrumbSource breadcrumbSource;
   private final AnalyticsEventLogger analyticsEventLogger;