Added proper support for typedef in passes.

src/Generator/Passes/Pass.cs

@@ -80,5 +80,13 @@ namespace Cxxi.Passes
         {
             return false;
         }
+
+        /// <summary>
+        /// Processes a typedef.
+        /// </summary>
+        public virtual bool ProcessTypedef(TypedefDecl typedef)
+        {
+            return false;
+        }
     }
 }

src/Generator/Transforms/Transform.cs

@@ -70,7 +70,9 @@ namespace Cxxi.Passes
         void TransformTypedef(TypedefDecl typedef)
         {
             foreach (var pass in Passes.Passes)
-                pass.ProcessDeclaration(typedef);
+                pass.ProcessTypedef(typedef);
+
+            TransformDeclaration(typedef);
         }
 
         void TransformClass(Class @class)