message: Add test for f32::round and f64::round
diff: @@ -85,6 +85,9 @@ pub fn main() {
  assert_approx_eq!(1.0f32.tan(), 1.557408f32);
  assert_approx_eq!(1.0f64.tan(), 1.557408f64);
  + assert_eq!(3.3_f32.round(), 3.0);
  + assert_eq!(3.3_f64.round(), 3.0);
  +
  extern {
  fn ldexp(x: f64, n: i32) -> f64;
  }
  