First stab at parsing redirecting constructors.

lib/compiler/implementation/scanner/listener.dart

Index: lib/compiler/implementation/scanner/listener.dart
diff --git a/lib/compiler/implementation/scanner/listener.dart b/lib/compiler/implementation/scanner/listener.dart
index 3298428766a661c10ad6f2cbe62d4ec997f1dd80..8bb34c604a4e37a260194cc19cefa1f3587862e9 100644
--- a/lib/compiler/implementation/scanner/listener.dart
+++ b/lib/compiler/implementation/scanner/listener.dart
@@ -250,6 +250,14 @@ class Listener {
                                    Token beginToken, Token endToken) {
   }
 
+  void beginRedirectingFactoryBody(Token token) {
+  }
+
+  void endRedirectingFactoryBody(Token start,
+                                 Token periodBeforeName,
+                                 Token end) {
+  }
+
   void beginReturnStatement(Token token) {
   }
 
@@ -1157,6 +1165,25 @@ class NodeListener extends ElementListener {
     pushNode(null);
   }
 
+  void endRedirectingFactoryBody(Token start,
+                                 Token periodBeforeName,
+                                 Token end) {
+    // This generates nodes for '= Type<T>.foo' that are similar to
+    // 'return new Type<T>.foo()'. It is recognizable by having
+    // the '=' token as starting token for both the Return and
+    // the NewExpression objects.
+    NodeList noArguments = new NodeList.empty();
+    Node target = popNode();
+    if (periodBeforeName != null) {
+      Identifier name = target;
+      TypeAnnotation type = popNode();
+      target = new Send(type, name);
+    }
+    NewExpression newExpression =
+        new NewExpression(start, new Send(null, target, noArguments));

[ahe, 2012/10/05 08:23:20]

We can't have the same token in two AST node.

I think you need to test this in dart/tests/compiler/dart2js/unparser_test.dart

[Lasse Reichstein Nielsen, 2012/10/09 09:46:54]

That's ... problematic. We might need a new AST node then.
Will do.

+    pushNode(new Return(start, end, newExpression));
+  }
+
   void endReturnStatement(bool hasExpression,
                           Token beginToken, Token endToken) {
     Expression expression = hasExpression ? popNode() : null;