Silenced deprecation warnings in SortedDict tests; refs [07876cf0]

import pickle

from django.test import SimpleTestCase

from django.test.utils import IgnorePendingDeprecationWarningsMixin

from django.utils.datastructures import (DictWrapper, ImmutableList,

    MultiValueDict, MultiValueDictKeyError, MergeDict, SortedDict)

from django.utils import six

class SortedDictTests(SimpleTestCase):

class SortedDictTests(IgnorePendingDeprecationWarningsMixin, SimpleTestCase):

    def setUp(self):

        super(SortedDictTests, self).setUp()

        self.d1 = SortedDict()

        self.d1[7] = 'seven'

        self.d1[1] = 'one'