message: Add complex64 and complex128 gpu support for tensor_scatter_nd_add
  This PR adds complex64 and complex128 gpu support for tensor_scatter_nd_add,
  as was raised in 40577.
  This PR fixes 40577.
diff: @@ -197,6 +197,8 @@ Status DoCopy(const Device& d, const Tensor& x, Tensor* y) {
  CASE(float)
  CASE(double)
  CASE(Eigen::half)
  + CASE(complex64)
  + CASE(complex128)
  CASE(int64)
  #undef CASE
  default:
  