message: [Python] Python 2 and Python 3 disagree on `/`.
  One considers it integer division, the other doesn't.
  Move to `//` (floor division) so that this test passes
  independently from the version.
diff: @@ -57,7 +57,7 @@ class TestYMMRegister(TestBase):
  else:
  register_range = 8
  for i in range(register_range):
  - j = i - ((i / 8) * 8)
  + j = i - ((i // 8) * 8)
  self.runCmd("thread step-inst")
  register_byte = (byte_pattern1 | j)
  