Fix the generic type of Map.values for map literals.

tests/corelib/map_values3_test.dart

 // Copyright (c) 2011, 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.
 
 import "package:expect/expect.dart";
 
 main() {
-  var map1 = <String, int>{ "foo": 42, "bar": 499 };
-  var map2 = <String, int>{};
-  var map3 = const <String, int>{ "foo": 42, "bar": 499 };
-  var map4 = const <String, int>{};
-  var map5 = new Map<String, int>();
-  map5["foo"] = 43;
-  map5["bar"] = 500;
-  var map6 = new Map<String, int>();
+  var map1 = <int, String>{ 1: "42", 2: "499" };
+  var map2 = <int, String>{};
+  var map3 = const <int, String>{ 3: "42", 4: "499" };
+  var map4 = const <int, String>{};
+  var map5 = new Map<int, String>();
+  map5[5] = "43";
+  map5[6] = "500";
+  var map6 = new Map<int, String>();
 
-  Expect.isTrue(map1.values is Iterable<int>);
+  Expect.isTrue(map1.values is Iterable<String>);
   Expect.isFalse(map1.values is Iterable<bool>);
   Expect.isFalse(map1.values is List);
   Expect.equals(2, map1.values.length);
-  Expect.equals(42, map1.values.first);
-  Expect.equals(499, map1.values.last);
+  Expect.equals("42", map1.values.first);
+  Expect.equals("499", map1.values.last);
 
-  Expect.isTrue(map2.values is Iterable<int>);
+  Expect.isTrue(map2.values is Iterable<String>);
   Expect.isFalse(map2.values is Iterable<bool>);
   Expect.isFalse(map2.values is List);
   Expect.equals(0, map2.values.length);
 
-  Expect.isTrue(map3.values is Iterable<int>);
+  Expect.isTrue(map3.values is Iterable<String>);
   Expect.isFalse(map3.values is Iterable<bool>);
   Expect.isFalse(map3.values is List);
   Expect.equals(2, map3.values.length);
-  Expect.equals(42, map3.values.first);
-  Expect.equals(499, map3.values.last);
+  Expect.equals("42", map3.values.first);
+  Expect.equals("499", map3.values.last);
 
-  Expect.isTrue(map4.values is Iterable<int>);
+  Expect.isTrue(map4.values is Iterable<String>);
   Expect.isFalse(map4.values is Iterable<bool>);
   Expect.isFalse(map4.values is List);
   Expect.equals(0, map4.values.length);
 
-  Expect.isTrue(map5.values is Iterable<int>);
+  Expect.isTrue(map5.values is Iterable<String>);
   Expect.isFalse(map5.values is Iterable<bool>);
   Expect.isFalse(map5.values is List);
   Expect.equals(2, map5.values.length);
   // new Map gives a LinkedHashMap, so we know the order.
-  Expect.isTrue(map5.values.first == 43);
-  Expect.isTrue(map5.values.last == 500);
+  Expect.isTrue(map5.values.first == "43");
+  Expect.isTrue(map5.values.last == "500");
 
-  Expect.isTrue(map6.values is Iterable<int>);
+  Expect.isTrue(map6.values is Iterable<String>);
   Expect.isFalse(map6.values is Iterable<bool>);
   Expect.isFalse(map6.values is List);
   Expect.equals(0, map6.values.length);
 }