More completion refactoring. Getting the structure for filtering names right.

jedi/api/__init__.py

@@ -162,6 +162,7 @@ class Script(object):
             self._evaluator, self._parser, self._user_context,
             self._pos, self.call_signatures
         )
+        debug.speed('completions end')
         return completion.completions(path)
 
     def goto_definitions(self):