Unreviewed, fix the Mac Catalyst build after 294063@main

https://bugs.webkit.org/show_bug.cgi?id=291990
rdar://149947098

Compile these new APIs out in Mac Catalyst, where requisite system support doesn't exist.

* Source/WebKit/UIProcess/API/Cocoa/WKUIDelegate.h:
* Source/WebKit/UIProcess/API/Cocoa/WKWebView.h:

Canonical link: https://commits.webkit.org/294072@main

Author: whsieh

Source/WebKit/UIProcess/API/Cocoa/WKUIDelegate.h

@@ -294,15 +294,15 @@ WK_SWIFT_UI_ACTOR
  */
 - (void)webView:(WKWebView *)webView runOpenPanelWithParameters:(WKOpenPanelParameters *)parameters initiatedByFrame:(WKFrameInfo *)frame completionHandler:(WK_SWIFT_UI_ACTOR void (^)(NSArray<NSURL *> * _Nullable URLs))completionHandler WK_API_AVAILABLE(macos(10.12), ios(18.4), visionos(2.4));
 
-#if TARGET_OS_IOS && __IPHONE_OS_VERSION_MIN_REQUIRED >= 180400
+#if TARGET_OS_IOS && !TARGET_OS_MACCATALYST && __IPHONE_OS_VERSION_MIN_REQUIRED >= 180400
 
 /*! @abstract Tells the delegate when the keyboard delivers an input suggestion.
  @param webView The web view where the input suggestion should be inserted.
  @param inputSuggestion The input suggestion that the user or system selected.
  */
 - (void)webView:(WKWebView *)webView insertInputSuggestion:(UIInputSuggestion *)inputSuggestion WK_API_AVAILABLE(ios(WK_IOS_TBA)) WK_API_UNAVAILABLE(tvos, watchos, visionos, macCatalyst) NS_SWIFT_NAME(webView(_:insertInputSuggestion:));
 
-#endif // TARGET_OS_IOS && __IPHONE_OS_VERSION_MIN_REQUIRED >= 180400
+#endif // TARGET_OS_IOS && !TARGET_OS_MACCATALYST && __IPHONE_OS_VERSION_MIN_REQUIRED >= 180400
 
 @end
 

Source/WebKit/UIProcess/API/Cocoa/WKWebView.h

@@ -660,15 +660,15 @@ The uniform type identifier kUTTypeWebArchive can be used get the related pasteb
 
 #endif
 
-#if TARGET_OS_IOS && __IPHONE_OS_VERSION_MIN_REQUIRED >= 180400
+#if TARGET_OS_IOS && !TARGET_OS_MACCATALYST && __IPHONE_OS_VERSION_MIN_REQUIRED >= 180400
 
 /*! @abstract A reference to a conversation, such as a mail or messaging thread.
  @discussion Set this conversation context before the keyboard appears; the keyboard uses this context to initialize its conversation context value. When your conversation updates, update the smart reply by setting this property.
  */
 
 @property (strong, nonatomic) UIConversationContext *conversationContext WK_API_AVAILABLE(ios(WK_IOS_TBA)) WK_API_UNAVAILABLE(tvos, watchos, visionos, macCatalyst);
 
-#endif // TARGET_OS_IOS && __IPHONE_OS_VERSION_MIN_REQUIRED >= 180400
+#endif // TARGET_OS_IOS && !TARGET_OS_MACCATALYST && __IPHONE_OS_VERSION_MIN_REQUIRED >= 180400
 
 /*!
 @abstract Controls whether this @link WKWebView @/link is inspectable in Web Inspector.