fails:Float#% returns NaN when called on NaN or Infinities
fails:Float#% returns NaN when modulus is NaN
fails:Float#% does NOT raise ZeroDivisionError if other is zero
fails:Float#modulo returns NaN when called on NaN or Infinities
fails:Float#modulo returns NaN when modulus is NaN
fails:Float#modulo does NOT raise ZeroDivisionError if other is zero
