[visionOS] Fix FirebaseDatabase build on Xcode 15.1 beta 1 (#11937)

Author: andrewheard

FirebaseDatabase/Sources/Core/FPersistentConnection.m

@@ -1256,7 +1256,8 @@ - (void)sendStats:(NSDictionary *)stats {
 - (void)sendConnectStats {
     NSMutableDictionary *stats = [NSMutableDictionary dictionary];
 
-#if TARGET_OS_IOS || TARGET_OS_TV
+#if TARGET_OS_IOS || TARGET_OS_TV ||                                           \
+    (defined(TARGET_OS_VISION) && TARGET_OS_VISION)
     if (self.config.persistenceEnabled) {
         stats[@"persistence.ios.enabled"] = @1;
     }

FirebaseDatabase/Sources/Core/FRepo.m

@@ -52,7 +52,8 @@
 #import "FirebaseDatabase/Sources/Utilities/Tuples/FTupleTransaction.h"
 #import <dlfcn.h>
 
-#if TARGET_OS_IOS || TARGET_OS_TV
+#if TARGET_OS_IOS || TARGET_OS_TV ||                                           \
+    (defined(TARGET_OS_VISION) && TARGET_OS_VISION)
 #import <UIKit/UIKit.h>
 #endif
 
@@ -815,7 +816,8 @@ - (void)didEnterBackground {
 
 // Targetted compilation is ONLY for testing. UIKit is weak-linked in actual
 // release build.
-#if TARGET_OS_IOS || TARGET_OS_TV
+#if TARGET_OS_IOS || TARGET_OS_TV ||                                           \
+    (defined(TARGET_OS_VISION) && TARGET_OS_VISION)
     // The idea is to wait until any outstanding sets get written to disk. Since
     // the sets might still be in our dispatch queue, we wait for the dispatch
     // queue to catch up and for persistence to catch up. This may be

FirebaseDatabase/Sources/Persistence/FLevelDBStorageEngine.m

@@ -275,7 +275,8 @@ - (void)close {
 }
 
 + (NSString *)firebaseDir {
-#if TARGET_OS_IOS || TARGET_OS_WATCH
+#if TARGET_OS_IOS || TARGET_OS_WATCH ||                                        \
+    (defined(TARGET_OS_VISION) && TARGET_OS_VISION)
     NSArray *dirPaths = NSSearchPathForDirectoriesInDomains(
         NSDocumentDirectory, NSUserDomainMask, YES);
     NSString *documentsDir = [dirPaths objectAtIndex:0];

FirebaseDatabase/Sources/Realtime/FWebSocketConnection.m

@@ -26,9 +26,11 @@
 #import "FirebaseDatabase/Sources/Realtime/FWebSocketConnection.h"
 #import "FirebaseDatabase/Sources/Utilities/FStringUtilities.h"
 
-#if TARGET_OS_IOS || TARGET_OS_TV
+#if TARGET_OS_IOS || TARGET_OS_TV ||                                           \
+    (defined(TARGET_OS_VISION) && TARGET_OS_VISION)
 #import <UIKit/UIKit.h>
-#endif // TARGET_OS_IOS || TARGET_OS_TV
+#endif // TARGET_OS_IOS || TARGET_OS_TV || (defined(TARGET_OS_VISION) &&
+       // TARGET_OS_VISION)
 
 #if TARGET_OS_WATCH
 #import <Network/Network.h>
@@ -144,14 +146,16 @@ - (NSString *)userAgent {
 
 // Targetted compilation is ONLY for testing. UIKit is weak-linked in actual
 // release build.
-#if TARGET_OS_IOS || TARGET_OS_TV
+#if TARGET_OS_IOS || TARGET_OS_TV ||                                           \
+    (defined(TARGET_OS_VISION) && TARGET_OS_VISION)
     Class uiDeviceClass = NSClassFromString(@"UIDevice");
     if (uiDeviceClass) {
         systemVersion = [uiDeviceClass currentDevice].systemVersion;
         deviceName = [uiDeviceClass currentDevice].model;
         hasUiDeviceClass = YES;
     }
-#endif // TARGET_OS_IOS || TARGET_OS_TV
+#endif // TARGET_OS_IOS || TARGET_OS_TV || (defined(TARGET_OS_VISION) &&
+       // TARGET_OS_VISION)
 
     if (!hasUiDeviceClass) {
         NSDictionary *systemVersionDictionary = [NSDictionary