Implement 'dart:typeddata' directly in the VM instead of using 'dart:scalarlist'

tests/standalone/typed_array_test.dart

 // Copyright (c) 2012, 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 native float arrays.
 
 // Library tag to be able to run in html test framework.
 library TypedArray;
 import 'dart:isolate';
 import 'dart:typeddata';
@@ skipping 267 matching lines @@
 }
 
 
 // Float32 Array.
 Float32List initFloat32() {
   var float32 = new Float32List(2);
   float32[0] = 1.0;
   float32[1] = 2.0;
   return float32;
 }
-Float32List float32 = new Float32List(2);
+Float32List float32 = initFloat32();
 
 void float32_receiver() {
   var sp = spawnFunction(float32_sender);
   sp.call(float32.length).then((a) {
     Expect.equals(float32.length, a.length);
     for (int i = 0; i < a.length; i++) {
       Expect.equals(float32[i], a[i]);
     }
     print("float32_receiver");
   });
@@ skipping 34 matching lines @@
 float64_sender() {
   port.receive((len, r) {
     Expect.equals(float64.length, len);
     var a = new Float64List(len);
     for (int i = 0; i < len; i++) {
       a[i] = float64[i];
     }
     r.send(a);
   });
 }