message: Fix StatelessRandomOpsTest.testDistributionOfStatelessRandomUniform for numpy 1.16.4
  We need to convert to float before running random_test_util.chi_squared
diff: @@ -86,8 +86,8 @@ class StatelessRandomOpsTest(xla_test.XLATestCase):
  x = stateless.stateless_random_uniform(
  shape=[n], seed=seed_t, maxval=maxval, dtype=dtype)
  y = sess.run(x, {seed_t: [565656, 121212]})
  - if maxval > 1:
  - # Normalize y to range [0, 1).
  + # Convert y to float and normalize its value to range [0, 1) when
  + # maxval != 1.
  y = y.astype(float) / maxval
  # Tests that the values are distributed amongst 10 bins with equal
  # probability. 16.92 is the Chi^2 value for 9 degrees of freedom with
  