class TestCase::Matrix4_16s : mulnum_t {
  has x11 : short;
  has x21 : short;
  has x31 : short;
  has x41 : short;
  has x12 : short;
  has x22 : short;
  has x32 : short;
  has x42 : short;
  has x13 : short;
  has x23 : short;
  has x33 : short;
  has x43 : short;
  has x14 : short;
  has x24 : short;
  has x34 : short;
  has x44 : short;
}