Implement more intrinisification for x64 (not as inlined code but as header of the target).

runtime/lib/array.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.
 
 class ListFactory<E> {
 
   factory List.from(Iterable<E> other) {
     GrowableObjectArray<E> list = new GrowableObjectArray<E>();
     for (final e in other) {
       list.add(e);
@@ skipping 283 matching lines @@
 
 
 // Iterator for arrays with fixed size.
 class FixedSizeArrayIterator<E> implements Iterator<E> {
   FixedSizeArrayIterator(List array)
       : _array = array, _length = array.length, _pos = 0 {
     assert(array is ObjectArray || array is ImmutableArray);
   }
 
   bool hasNext() {
-   return _length > _pos;
+    return _length > _pos;
   }
 
   E next() {
     if (!hasNext()) {
       throw const NoMoreElementsException();
     }
     return _array[_pos++];
   }
 
   final List<E> _array;
   final int _length;  // Cache array length for faster access.
   int _pos;
 }