def test_annotations(self):
        """
        Type annotation of array expressions with disambiguated
        variable names (issue #1466).
        """
        cfunc = njit(variable_name_reuse)

        a = np.linspace(0, 1, 10)
        cfunc(a, a, a, a)

        buf = StringIO()
        cfunc.inspect_types(buf)
        res = buf.getvalue()
        self.assertIn("#   u.1 = ", res)
        self.assertIn("#   u.2 = ", res)

        Type annotation of array expressions with disambiguated
        variable names (issue #1466).
        
numba/tests/test_array_exprs.py