Fix 16099: Invocation's positionalArguments contains an immutable array.

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.
 
 
 // TODO(srdjan): Use shared array implementation.
 class _List<E> implements List<E> {
   static final int _classId = (new _List(0))._cid;
 
   factory _List(length) native "List_allocate";
@@ skipping 273 matching lines @@
 // implementation (checks when modifying). We should keep watching
 // the inline cache misses.
 class _ImmutableList<E> implements List<E> {
   static final int _classId = (const [])._cid;
 
   factory _ImmutableList._uninstantiable() {
     throw new UnsupportedError(
         "ImmutableArray can only be allocated by the VM");
   }
 
+  factory _ImmutableList._from(List from, int offset, int length)
+      native "ImmutableList_from";
+
   E operator [](int index) native "List_getIndexed";
 
   void operator []=(int index, E value) {
     throw new UnsupportedError(
         "Cannot modify an immutable array");
   }
 
   int get length native "List_getLength";
 
   void insert(int index, E element) {
@@ skipping 256 matching lines @@
     }
     _position = _length;
     _current = null;
     return false;
   }
 
   E get current {
     return _current;
   }
 }