Generate typedef node from the element.

pkg/compiler/lib/src/dart_backend/outputter.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of dart_backend;
 
 typedef bool IsSafeToRemoveTypeDeclarations(
     Map<ClassElement, Iterable<Element>> classMembers);
 typedef void ElementCallback<E>(E element);
 typedef void ElementPostProcessFunction(
@@ skipping 370 matching lines @@
     if (topLevelElements.contains(element)) return;
     topLevelElements.add(element);
     processElement(element, elementAst);
   }
 
   void addClass(ClassElement classElement) {
     TreeElements treeElements = new TreeElementMapping(classElement);
     backend2frontend.TreePrinter treePrinter =
         new backend2frontend.TreePrinter(treeElements);
     Node node = treePrinter.makeNodeForClassElement(classElement);
-    addTopLevel(classElement, new ElementAst.internal(node, treeElements));
+    addTopLevel(classElement, new ElementAst(node, treeElements));
     classMembers.putIfAbsent(classElement, () => new Set());
   }
 
   void newTypedefElementCallback(TypedefElement element) {
     if (!shouldOutput(element)) return;
-    addTopLevel(element, new ElementAst(element));
+    TreeElements treeElements = new TreeElementMapping(element);
+    backend2frontend.TreePrinter treePrinter =
+        new backend2frontend.TreePrinter(treeElements);
+    Node node = treePrinter.makeTypedef(element);
+    addTopLevel(element, new ElementAst(node, treeElements));
   }
 
   void newClassElementCallback(ClassElement classElement) {
     if (!shouldOutput(classElement)) return;
     addClass(classElement);
   }
 
   void addMember(element) {
     ElementAst elementAst = parseElementAst(element);
     if (element.isClassMember) {
@@ skipping 145 matching lines @@
       outputProvider("", "dart")
            ..add(assembledCode)
            ..close();
 
       totalSize = assembledCode.length;
     }
 
     return assembledCode;
   }
 }