fixup auto-register, but with new debugAutoPause name

Author: gnprice

test/model/actions_test.dart

@@ -7,6 +7,7 @@ import 'package:flutter_test/flutter_test.dart';
 import 'package:http/http.dart' as http;
 import 'package:http/testing.dart' as http_testing;
 import 'package:zulip/model/actions.dart';
+import 'package:zulip/model/push_device.dart';
 import 'package:zulip/model/store.dart';
 import 'package:zulip/notifications/receive.dart';
 
@@ -147,6 +148,8 @@ void main() {
     }));
 
     test('notifications are removed after logout', () => awaitFakeAsync((async) async {
+      PushDeviceManager.debugAutoPause = true;
+      addTearDown(() => PushDeviceManager.debugAutoPause = false);
       await prepare();
       testBinding.firebaseMessagingInitialToken = '123';
       addTearDown(NotificationService.debugReset);

test/notifications/open_test.dart

@@ -10,6 +10,7 @@ import 'package:zulip/host/notifications.dart';
 import 'package:zulip/model/database.dart';
 import 'package:zulip/model/localizations.dart';
 import 'package:zulip/model/narrow.dart';
+import 'package:zulip/model/push_device.dart';
 import 'package:zulip/notifications/open.dart';
 import 'package:zulip/notifications/receive.dart';
 import 'package:zulip/widgets/app.dart';
@@ -80,6 +81,8 @@ void main() {
     testBinding.firebaseMessagingInitialToken = '012abc';
     addTearDown(NotificationService.debugReset);
     NotificationService.debugBackgroundIsolateIsLive = false;
+    PushDeviceManager.debugAutoPause = true;
+    addTearDown(() => PushDeviceManager.debugAutoPause = false);
     await NotificationService.instance.start();
   }