patch 9.1.0989: Vim9: Whitespace after the final enum value causes a syntax error

Problem:  Vim9: Whitespace after the final enum value causes a syntax
          error
Solution: Fix parsing to allow whitespace after the final enum value.
          (Doug Kearns)

closes: #16383

Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/vim9class.c b/src/vim9class.c
index 22db751..7c7700b 100644
--- a/src/vim9class.c
+++ b/src/vim9class.c
@@ -1623,6 +1623,8 @@
 	}
     }
 
+    p = skipwhite(p);
+
     if (*p != NUL && *p != '#')
     {
 	if (did_emsg == did_emsg_before)