Change new List(n) to return fixed length list.

tests/corelib/strings_test.dart

Index: tests/corelib/strings_test.dart
diff --git a/tests/corelib/strings_test.dart b/tests/corelib/strings_test.dart
index 49d5cb5ff2c26a3a5b8baa98bade382e96062957..16630f274bd0289582ff04511afd9e76a327af00 100644
--- a/tests/corelib/strings_test.dart
+++ b/tests/corelib/strings_test.dart
@@ -13,7 +13,7 @@ class StringsTest {
   }
   static testCreation() {
     String s = "Hello";
-    List<int> l = new List.fixedLength(s.length);
+    List<int> l = new List(s.length);
     for (int i = 0; i < l.length; i++) {
       l[i] = s.codeUnitAt(i);
     }