patch 9.1.0255: Vim9: no indication of script nr in stack trace of classes

Problem:  Vim9: no indication of script nr in stack trace of classes
Solution: Prefix the class name with the script name in the stack trace.
          (Ernie Rael)

fixes: #14376
closes: #14390

Signed-off-by: Ernie Rael <errael@raelity.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index abb028b..22a1e31 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    255,
+/**/
     254,
 /**/
     253,