static WpfTypeFinder()
 {
     Instance = new XamlTypeFinder();
     Instance.RegisterAssembly(typeof(MarkupExtension).Assembly);           // WindowsBase
     Instance.RegisterAssembly(typeof(IAddChild).Assembly);                 // PresentationCore
     Instance.RegisterAssembly(typeof(XamlReader).Assembly);                // PresentationFramework
 }
 static WpfTypeFinder()
 {
     Instance = new XamlTypeFinder();
     Instance.RegisterDesignerNamespaces();
     Instance.RegisterAssembly(typeof(Point).Assembly);                // WindowsBase
     Instance.RegisterAssembly(typeof(IAddChild).Assembly);            // PresentationCore
     Instance.RegisterAssembly(typeof(XamlReader).Assembly);           // PresentationFramework
     Instance.RegisterAssembly(typeof(XamlType).Assembly);             // System.Xaml
     Instance.RegisterAssembly(typeof(Type).Assembly);                 // mscorelib
 }