Remove the FIR prefix from notification constants.

Author: ryanwilson

FirebaseInstallations/CHANGELOG.md

@@ -4,6 +4,9 @@
 - [changed] Throw an exception if `FIROptions.projectID` is missing or
   `FIROptions.APIKey` has incorrect format to catch critical configuration
   issues earlier. (#4692)
+- [changed] Removed the `FIR` prefix from `FIRInstallationIDDidChange` and renamed
+  `kFIRInstallationIDDidChangeNotificationAppNameKey` to `InstallationIDDidChangeAppNameKey`
+  in Swift.
 
 # v1.7.1 -- M81
 - [changed] Additional `FIRInstallationsItem` validation to catch potential storage issues. (#6570)
@@ -38,4 +41,4 @@
 # v1.0.0 -- M62
 
 - [added] The Firebase Installations Service is an infrastructure service for Firebase services that creates unique identifiers and authentication tokens for Firebase clients (called "Firebase Installations") enabling Firebase Targeting, i.e. interoperation between Firebase services.
-- [added] The Firebase Installations SDK introduces the Firebase Installations API. Developers that use API-restrictions for their API-Key may experience blocked requests (https://stackoverflow.com/questions/58495985/). This problem can be mitigated by following the instructions found [here](API_KEY_RESTRICTIONS.md).
+- [added] The Firebase Installations SDK introduces the Firebase Installations API. Developers that use API-restrictions for their API-Key may experience blocked requests (https://stackoverflow.com/questions/58495985/). This problem can be mitigated by following the instructions found [here](API_KEY_RESTRICTIONS.md).

FirebaseInstallations/Source/Library/Public/FirebaseInstallations/FIRInstallations.h

@@ -22,9 +22,11 @@
 NS_ASSUME_NONNULL_BEGIN
 
 /** A notification with this name is sent each time an installation is created or deleted. */
-FOUNDATION_EXPORT const NSNotificationName FIRInstallationIDDidChangeNotification;
+FOUNDATION_EXPORT const NSNotificationName FIRInstallationIDDidChangeNotification
+    NS_SWIFT_NAME(InstallationIDDidChange);
 /** `userInfo` key for the `FirebaseApp.name` in `FIRInstallationIDDidChangeNotification`. */
-FOUNDATION_EXPORT NSString *const kFIRInstallationIDDidChangeNotificationAppNameKey;
+FOUNDATION_EXPORT NSString *const kFIRInstallationIDDidChangeNotificationAppNameKey
+    NS_SWIFT_NAME(InstallationIDDidChangeAppNameKey);
 
 /**
  * An installation ID handler block.

FirebaseMessaging/Apps/Sample/Sample/SceneDelegate.swift

@@ -57,10 +57,9 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate, MessagingDelegate {
 
     // Subscribe to fid changes
     NotificationCenter.default
-      .publisher(for: Notification.Name.FIRInstallationIDDidChange)
-      .map { _ in }
+      .publisher(for: Notification.Name.InstallationIDDidChange)
       .receive(on: RunLoop.main)
-      .sink(receiveValue: {
+      .sink(receiveValue: { _ in
         Installations.installations().installationID(completion: { fid, error in
           if let error = error as NSError? {
             print("Failed to get FID: ", error)