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

tests/language/execute_finally7_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.
 // Dart test program for testing execution of finally blocks after an exception
 // is thrown from inside a local function capturing a variable.
 
 
 class MyException {
   const MyException(String message) : message_ = message;
   final String message_;
 }
 
 class Helper {
   static int f1(int k) {
     var b;
     try {
-      var a = new List.fixedLength(10);
+      var a = new List(10);
       int i = 0;
       while (i < 10) {
         int j = i;
         a[i] = () {
           if (j == 5) {
             throw new MyException("Test for exception being thrown");
           }
           k += 10;
           return j;
         };
@@ skipping 19 matching lines @@
 
 class ExecuteFinally7Test {
   static testMain() {
     Expect.equals(1171, Helper.f1(1));
   }
 }
 
 main() {
   ExecuteFinally7Test.testMain();
 }