'Check that pyfunc can\'t loop-lift.'

def check_no_lift(self, pyfunc, argtypes, args):

    cres = compile_isolated(pyfunc, argtypes, flags=looplift_flags)
    self.assertFalse(cres.lifted)
    expected = pyfunc(*args)
    got = cres.entry_point(*args)
    self.assertPreciseEqual(expected, got)
