Added runtime type checking to the elements of list and map literals in dartc

tests/language/src/ListLiteral4Test.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.
 // VMOptions=--enable_type_checks
 //
 // Dart test program testing type checks in list literals.
 
 class ListLiteral4Test<T> {
   test() {
     int result = 0;
     try {
       var m = <String>[0, 1];  // 0 is not a String.
     } catch (TypeError error) {
       result += 1;
     }
     try {
       var m = <int>[0, 1];
       m["0"] = 1;  // "0" is not an int.
     } catch (TypeError error) {
       result += 10;
     }
     try {
-      var m = <T>{"a": "b"};  // "b" is not an int.
+      var m = <T>["a", "b"];  // "b" is not an int.

[zundel, 2012/01/25 23:41:22]

My guess is this was some kind of cut and paste error when this part of the test
was cloned from MapLiteral4Test.

     } catch (TypeError error) {
       result += 100;
     }
     try {
       var m = <T>[0, 1];  // OK.
     } catch (TypeError error) {
       result += 1000;
     }
     try {
       var m = <T>[0, 1];
@@ skipping 10 matching lines @@
     return result;
   }
 }
 
 main() {
   var t = new ListLiteral4Test<int>();
   Expect.equals(110111, t.test());
 }