Address the remaining review comments on http://chromiumcodereview.appspot.com/9431029.

lib/compiler/implementation/elements/elements.dart

Index: lib/compiler/implementation/elements/elements.dart
diff --git a/lib/compiler/implementation/elements/elements.dart b/lib/compiler/implementation/elements/elements.dart
index e7fd419fe8e40f786ddeb86a9f6bb3045cb97802..943d5225cf8b3d2400a8d9a377abbc5a466adfc0 100644
--- a/lib/compiler/implementation/elements/elements.dart
+++ b/lib/compiler/implementation/elements/elements.dart
@@ -333,11 +333,20 @@ class PrefixElement extends Element {
 }
 
 class TypedefElement extends Element {
-  Token token;
+  final Token token;
+  Type cachedType;
+
   TypedefElement(SourceString name, Element enclosing, this.token)
     : super(name, ElementKind.TYPEDEF, enclosing);
 
   position() => findMyName(token);
+
+  Type computeType(Compiler compiler) {
+    if (cachedType === null) {
+      cachedType = new InterfaceType(name, this);

[ahe, 2012/04/19 08:20:06]

This could be set in the constructor.

[karlklose, 2012/04/25 11:45:43]

Done.

+    }
+    return cachedType;
+  }
 }
 
 class VariableElement extends Element {