Unreviewed, fix the internal iOS build after 274016@main

Avoid redeclarations by only declaring BrowserEngineKit SPI methods and properties when using the
non-internal SDK.

* Source/WebCore/PAL/pal/spi/ios/BrowserEngineKitSPI.h:
* Tools/TestRunnerShared/spi/UIKitSPIForTesting.h:

Canonical link: https://commits.webkit.org/274034@main

Source/WebCore/PAL/pal/spi/ios/BrowserEngineKitSPI.h

@@ -33,11 +33,7 @@
 // Note: SPI usage should be limited to testing purposes and binary compatibility with clients
 // of existing WebKit SPI.
 #import <BrowserEngineKit/BrowserEngineKit_Private.h>
-#endif
-
-@interface BEKeyEntry (Staging_121227027)
-@property (nonatomic, readonly) BEKeyPressState state;
-@end
+#else
 
 @class NSTextAlternatives;
 @class UIKeyEvent;
@@ -69,4 +65,10 @@
 - (instancetype)_initWithUIKitTextSuggestion:(UITextSuggestion *)suggestion;
 @end
 
+#endif
+
+@interface BEKeyEntry (Staging_121227027)
+@property (nonatomic, readonly) BEKeyPressState state;
+@end
+
 #endif // USE(BROWSERENGINEKIT)

Tools/TestRunnerShared/spi/UIKitSPIForTesting.h

@@ -494,12 +494,16 @@ typedef enum {
 - (UIEventButtonMask)_buttonMask;
 @end
 
-#endif // USE(APPLE_INTERNAL_SDK)
+@interface UIKeyEvent : NSObject
+- (instancetype)initWithWebEvent:(WebEvent *)webEvent;
+@end
 
-@class UITextInputArrowKeyHistory;
+#endif // USE(APPLE_INTERNAL_SDK)
 
 // Start of UIKit IPI
 
+@class UITextInputArrowKeyHistory;
+
 @interface UITextAutofillSuggestion ()
 + (instancetype)autofillSuggestionWithUsername:(NSString *)username password:(NSString *)password;
 @end
@@ -615,11 +619,6 @@ typedef NS_ENUM(NSInteger, NSTextBlockLayer) {
 #endif
 
 #if USE(BROWSERENGINEKIT)
-@interface UIKeyEvent : NSObject
-- (instancetype)initWithWebEvent:(WebEvent *)webEvent;
-@property (nonatomic, readonly) WebEvent *webEvent;
-@end
-
 // FIXME: Replace this with BEResponderEditActions once that's in the SDK.
 @interface UIResponder (Staging_121208689)
 - (void)addShortcut:(id)sender;
@@ -655,4 +654,8 @@ typedef NS_ENUM(NSInteger, NSTextBlockLayer) {
 - (UIPressInfo *)_pressInfoForPhysicalKeyboardEvent:(UIPhysicalKeyboardEvent *)physicalKeyboardEvent;
 @end
 
+@interface UIKeyEvent (IPI)
+@property (nonatomic, readonly) WebEvent *webEvent;
+@end
+
 #endif // PLATFORM(IOS_FAMILY)