message: Enable test case for int8 support with tf.tile.
diff: @@ -495,6 +495,8 @@ class TileTest(test.TestCase):
  "complex64": (dtypes.complex64, complex),
  "complex128": (dtypes.complex128, complex),
  "uint8": (dtypes.uint8, int),
  + "int8": (dtypes.int8, int),
  + "int16": (dtypes.int16, int),
  "int32": (dtypes.int32, int),
  "int64": (dtypes.int64, int),
  bytes: (dtypes.string, bytes)
  