Reify type params on map literals

test/codegen/language/map_literal11_test.dart

 // Copyright (c) 2013, 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.
 
-// Regression test for issue 11891.
+// Test the use type arguments on constant maps.
+
+library map_literal11_test;
 
 import "package:expect/expect.dart";
-import "mixin_prefix_lib.dart";
 
-class A extends Object with MixinClass {
-  String baz() => bar();
+void foo(Map m) {
+  Expect.throws(() { m[23] = 23; }, (e) => e is TypeError);
 }
 
 void main() {
-  var a = new A();
-  Expect.equals('{"a":1}', a.baz());
-}
+  Map<String, dynamic> map = {};
+  foo(map);
+}