anchor.diff:    @Returns('int')
     int _getInt16(int byteOffset, [bool littleEndian]) native;
   
  +  /**
  +   * Returns the (possibly negative) integer represented by the four bytes at
  +   * the specified [byteOffset] in this object, in two's complement binary
  +   * form.
  +   * The return value will be between 2<sup>31</sup> and 2<sup>31</sup> - 1,
  +   * inclusive.
  +   *
  +   * Throws [RangeError] if [byteOffset] is negative, or
  +   * `byteOffset + 4` is greater than the length of this object.
  +   */
     int getInt32(int byteOffset, [Endianness endian=Endianness.BIG_ENDIAN]) =>
         _getInt32(byteOffset, endian._littleEndian);
   
  
positive.code: }
  
  
  class Uint8List
      extends TypedData with ListMixin<int>, FixedLengthListMixin<int>
      implements JavaScriptIndexingBehavior, List<int>
  
negative.code: }
  
  
  /**
   * Interface of Dart Int32x4 and operations.
   * Int32x4 stores 4 32-bit bit-masks in "lanes".
   * The lanes are "x", "y", "z", and "w" respectively.
   */
  class Int32x4 {
    final _storage = new Int32List(4);
  
  