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

tests/language/deopt_no_feedback_test.dart

Index: tests/language/deopt_no_feedback_test.dart
diff --git a/tests/language/deopt_no_feedback_test.dart b/tests/language/deopt_no_feedback_test.dart
index 9cb79c108a5d1087d5dc94e82ff72a89acf76137..f307e774ba1d617c69c8714f24db56e2efb0eac8 100644
--- a/tests/language/deopt_no_feedback_test.dart
+++ b/tests/language/deopt_no_feedback_test.dart
@@ -8,13 +8,13 @@ testStoreIndexed() {
   test(a, i, v, flag) {
     if (flag) {
       // No type feedback in first pass
-      return a[i] = v; 
+      return a[i] = v;
     } else {
       return a[i] = i;
     }
   }
 
-  var a = new List.fixedLength(10);
+  var a = new List(10);
   for (var i = 0; i < 2000; i++) {
     var r = test(a, 3, 888, false);
     Expect.equals(3, r);