anchor.diff:     * region does not contain an integral number of "uint32s," or if it
      * is not "uint32-aligned."
      */
  -  external Uint32List.view(ByteArray array, [int start, int length]);
  +  external factory Uint32List.view(ByteArray array, [int start, int length]);
   }
   
   
  
positive.code:  * implementation will be considerably more space- and time-efficient than
   * the default [List] implementation.
   */
  class Float64List implements List<double>, ByteArrayViewable {
    /**
     * Creates a [Float64List] of the specified length (in elements), all of
     * whose elements are initially zero.
     */
    external Float64List(int length);
  
    /**
     * Creates a [Float64List] _view_ of the specified region in the specified
  
negative.code:  * [ByteArray]. For long lists, this implementation will be considerably
   * more space- and time-efficient than the default [List] implementation.
   */
  abstract class Uint32List implements List<int>, ByteArrayViewable {
    /**
     * Creates a [Uint32List] of the specified length (in elements), all
     * of whose elements are initially zero.
     */
    external factory Uint32List(int length);
  
    /**
     * Creates a [Uint32List] _view_ of the specified region in
  