Add support for the new function-type syntax.

pkg/compiler/lib/src/parser/node_listener.dart

Index: pkg/compiler/lib/src/parser/node_listener.dart
diff --git a/pkg/compiler/lib/src/parser/node_listener.dart b/pkg/compiler/lib/src/parser/node_listener.dart
index 4dc325cef5becfcb281cae7f5dc8aaa55653dc84..92aba071f35f88ec5319edbb7150ba6684fc0d8a 100644
--- a/pkg/compiler/lib/src/parser/node_listener.dart
+++ b/pkg/compiler/lib/src/parser/node_listener.dart
@@ -120,10 +120,31 @@ class NodeListener extends ElementListener {
     NodeList typeParameters = popNode();
     Identifier name = popNode();
     TypeAnnotation returnType = popNode();
-    pushNode(new Typedef(
+    bool isNewSyntax = false;
+    pushNode(new Typedef(isNewSyntax,
         returnType, name, typeParameters, formals, typedefKeyword, endToken));
   }
 
+  void endNewFunctionTypeAlias(Token typedefKeyword, Token endToken) {
+    NewFunctionType type = popNode();
+    NodeList typeParameters = popNode();
+    Identifier name = popNode();
+    // TODO(floitsch): keep using the `FunctionType' node.
+    // TODO(floitsch): keep track of generic function arguments. At the
+    // moment they are replaced by the typedef arguments.
+    bool isNewSyntax = true;
+    pushNode(new Typedef(isNewSyntax,
+        type.returnType, name, typeParameters, type.formals,
+        typedefKeyword, endToken));
+  }
+
+  void endFunctionType(Token beginToken, Token endToken) {
+    NodeList formals = popNode();
+    NodeList typeParameters = popNode();
+    TypeAnnotation returnType = popNode();
+    pushNode(new NewFunctionType(returnType, typeParameters, formals));
+  }
+
   void endNamedMixinApplication(
       Token classKeyword, Token implementsKeyword, Token endToken) {
     NodeList interfaces = (implementsKeyword != null) ? popNode() : null;