further undo of WSGI->TestRequest change that was used for debugging problems in unit testing

 - Legacy-Id: 6248

Author: mcr

v4.70/django/test/client.py

@@ -71,7 +71,7 @@ def __call__(self, environ):
 
         signals.request_started.send(sender=self.__class__)
         try:
-            request = TestRequest(environ)
+            request = WSGIRequest(environ)
             # sneaky little hack so that we can easily get round
             # CsrfViewMiddleware.  This makes life easier, and is probably
             # required for backwards compatibility with external tests against