Stubbed out delegate visiting support.

src/Generator/Generators/CLI/CLIMarshal.cs

@@ -189,6 +189,11 @@ namespace Cxxi.Generators.CLI
         {
             throw new NotImplementedException();
         }
+
+        public bool VisitDelegate(Delegate @delegate)
+        {
+            throw new NotImplementedException();
+        }
     }
 
     public class CLIMarshalManagedToNativePrinter : ITypeVisitor<bool>,
@@ -407,5 +412,10 @@ namespace Cxxi.Generators.CLI
         {
             throw new NotImplementedException();
         }
+
+        public bool VisitDelegate(Delegate @delegate)
+        {
+            throw new NotImplementedException();
+        }
     }
 }