message: Add F64 Sqrt test.
diff: @@ -236,6 +236,19 @@ XLA_TEST_F(MathTest, SqrtF32) {
  ComputeAndCompareR0<float>(&builder, 0.0f, {zero_data.get()}, error_spec_);
  }
  +XLA_TEST_F(MathTest, SqrtF64) {
  + XlaBuilder builder(TestName());
  + Literal zero_literal = LiteralUtil::Zero(PrimitiveType::F64);
  +
  + std::unique_ptr<GlobalData> zero_data =
  + client_->TransferToServer(zero_literal).ConsumeValueOrDie();
  +
  + XlaOp zero = Parameter(&builder, 0, zero_literal.shape(), "zero");
  + Sqrt(zero);
  +
  + ComputeAndCompareR0<double>(&builder, 0.0f, {zero_data.get()}, error_spec_);
  +}
  +
  #ifndef XLA_BACKEND_DOES_NOT_SUPPORT_FLOAT64
  XLA_TEST_F(MathTest, ErfInvF64) {
  XlaBuilder builder(TestName());
  