patch 9.0.2055: Vim9: non-consistent error messages

Problem:  Vim9: non-consistent error messages
Solution: make error messages more consistent with common structure

Adjust vim9class messages to follow common pattern.
[Variable|Method] "var-or-meth-name" ... class "class-name"

closes: #13391

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Ernie Rael <errael@raelity.com>
diff --git a/src/version.c b/src/version.c
index 6616d07..4bdf570 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2055,
+/**/
     2054,
 /**/
     2053,