Event's parameters are now visited

src/Bridge/ASTVisitor.cs

@@ -395,7 +395,13 @@ namespace CppSharp
 
         public virtual bool VisitEvent(Event @event)
         {
-            return VisitDeclaration(@event);
+            if (!VisitDeclaration(@event))
+                return false;
+
+            foreach (var param in @event.Parameters)
+                param.Visit(this);
+
+            return true;
         }
 
         #endregion