Fix typechecks for constant assignments of function to typedefs.

tests/language/type_check_const_function_typedef2_test.dart

Index: tests/language/type_check_const_function_typedef2_test.dart
diff --git a/tests/language/type_check_const_function_typedef2_test.dart b/tests/language/type_check_const_function_typedef2_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..fa9609b565f527ad7cb8ddbbaaefdc762a7d1ca6
--- /dev/null
+++ b/tests/language/type_check_const_function_typedef2_test.dart
@@ -0,0 +1,25 @@
+// 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.
+
+// Tests that typechecks on const objects with typedefs work.
+
+import "package:expect/expect.dart";
+
+typedef String Int2String(int x);
+
+class A {
+  final Int2String f;
+  const A(this.f);
+}
+
+int  /// 00: compile-time error
+foo(
+String  /// 00: continued
+x) => 499;
+
+const a = const A(foo);
+
+main() {
+  Expect.equals(499, a.f(499));
+}