Emit error on default values in typedefs.

tests/language/function_type_alias7_test.dart

Index: tests/language/function_type_alias7_test.dart
diff --git a/tests/language/function_type_alias7_test.dart b/tests/language/function_type_alias7_test.dart
index 03c5e0316f5080b52cdf603657de81f114ef9d39..41712f24d4d885d997eed40bf8adbc4d04657076 100644
--- a/tests/language/function_type_alias7_test.dart
+++ b/tests/language/function_type_alias7_test.dart
@@ -7,6 +7,8 @@ typedef void funcType([int arg]);
 
 typedef void badFuncType([int arg = 0]);  /// 00: compile-time error
 
+typedef void badFuncType({int arg: 0});  /// 02: compile-time error
+
 class A
   extends funcType  /// 01: compile-time error
 {
@@ -14,4 +16,6 @@ class A
 
 main() {
   new A();
+  badFuncType f;  /// 00: continued
+  badFuncType f;  /// 02: continued
 }