explicitly synthesize those guys

lib/UIKit/TUINSView.m

@@ -124,6 +124,9 @@ static NSComparisonResult compareNSViewOrdering (NSView *viewA, NSView *viewB, v
 // these cannot be implicitly synthesized because they're from protocols/categories
 @synthesize hostView = _hostView;
 @synthesize appKitHostView = _appKitHostView;
+@synthesize rootView = _rootView;
+@synthesize maskLayer = _maskLayer;
+@synthesize tuiHostView = _tuiHostView;
 
 - (id)initWithCoder:(NSCoder *)coder
 {

lib/UIKit/TUIViewNSViewContainer.m

@@ -44,6 +44,7 @@
 #pragma mark Properties
 
 @dynamic hostView;
+@synthesize rootView = _rootView;
 
 - (void)setRootView:(NSView *)view {
 	NSAssert1([NSThread isMainThread], @"%s should only be called from the main thread", __func__);