get rid of is_list_comp boolean in favor of a direct check of ListComprehensionFlow

jedi/cache.py

@@ -245,7 +245,7 @@ def save_parser(path, name, parser, pickling=True):
 
 class ParserPickling(object):
 
-    version = 11
+    version = 12
     """
     Version number (integer) for file system cache.