patch 9.1.1285: Vim9: no error message for missing method after "super."

Problem:  Vim9: no error message for missing method after "super."
Solution: output an error message, add a few more tests
          (Yegappan Lakshmanan).

closes: #17070

Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 8e39db9..466fdd5 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1285,
+/**/
     1284,
 /**/
     1283,