rename values_len to dictlist_len

Author: ekouts

reframe/frontend/executors/policies.py

@@ -18,7 +18,7 @@
                                         TaskEventListener, ABORT_REASONS)
 
 
-def values_len(d):
+def dictlist_len(d):
     return functools.reduce(lambda l, r: l + len(r), d.values(), 0)
 
 
@@ -422,7 +422,7 @@ def exit(self):
         num_polls = 0
         t_start = datetime.now()
         while (self._running_tasks or self._waiting_tasks or
-               self._completed_tasks or values_len(self._ready_tasks)):
+               self._completed_tasks or dictlist_len(self._ready_tasks)):
             getlogger().debug('running tasks: %s' % len(self._running_tasks))
             num_polls += len(self._running_tasks)
             try: