Fixed #22486 -- Restored the ability to reverse views created using functools.partial.

Regression in 8b93b31487.

Thanks rcoup for the report.

tests/urlpatterns_reverse/views.py

@@ -1,3 +1,5 @@
+from functools import partial, update_wrapper
+
 from django.http import HttpResponse
 from django.views.generic import RedirectView
 from django.core.urlresolvers import reverse_lazy
@@ -55,3 +57,11 @@ def login_required_view(request):
 
 def bad_view(request, *args, **kwargs):
     raise ValueError("I don't think I'm getting good value for this view")
+
+
+empty_view_partial = partial(empty_view, template_name="template.html")
+
+
+empty_view_wrapped = update_wrapper(
+    partial(empty_view, template_name="template.html"), empty_view,
+)