Fixes strict compilation errors. (#1331)

Author: tommyzed

packages/firebase_messaging/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 5.1.9
+
+* Fix strict compilation errors.
+
 ## 5.1.8
 
 * Updated README instructions for contributing for consistency with other Flutterfire plugins.

packages/firebase_messaging/ios/Classes/FirebaseMessagingPlugin.m

@@ -14,7 +14,7 @@ @interface FLTFirebaseMessagingPlugin () <FIRMessagingDelegate>
 
 static FlutterError *getFlutterError(NSError *error) {
   if (error == nil) return nil;
-  return [FlutterError errorWithCode:[NSString stringWithFormat:@"Error %ld", error.code]
+  return [FlutterError errorWithCode:[NSString stringWithFormat:@"Error %ld", (long)error.code]
                              message:error.domain
                              details:error.localizedDescription];
 }
@@ -175,7 +175,7 @@ - (void)applicationDidBecomeActive:(UIApplication *)application {
   application.applicationIconBadgeNumber = 0;
 }
 
-- (bool)application:(UIApplication *)application
+- (BOOL)application:(UIApplication *)application
     didReceiveRemoteNotification:(NSDictionary *)userInfo
           fetchCompletionHandler:(void (^)(UIBackgroundFetchResult result))completionHandler {
   [self didReceiveRemoteNotification:userInfo];

packages/firebase_messaging/pubspec.yaml

@@ -3,7 +3,7 @@ description: Flutter plugin for Firebase Cloud Messaging, a cross-platform
   messaging solution that lets you reliably deliver messages on Android and iOS.
 author: Flutter Team <[email protected]>
 homepage: https://github.com/FirebaseExtended/flutterfire/tree/master/packages/firebase_messaging
-version: 5.1.8
+version: 5.1.9
 
 flutter:
   plugin: