Fixed #16087 -- Added ResolverMatch instance to test client response

@timgraham what else is it modifying? The reason I added this here is because this is the only place that I can see which calls `resolve`. Adding it to the response here negates the need to call that again elsewhere. `django.test.client` has a `response` method which sets the values mentioned in the docs on the response. Would you prefer if I moved this to there instead?