patch 9.0.1804: Vim9: no support for private object methods

Problem:  Vim9: no support for private object methods
Solution: Add support for private object/class methods

closes: #12920

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
diff --git a/src/version.c b/src/version.c
index 08fcbeb..8b66b33 100644
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1804,
+/**/
     1803,
 /**/
     1802,