patch 9.1.0219: Vim9: No enum support

Problem:  No enum support
Solution: Implement enums for Vim9 script
          (Yegappan Lakshmanan)

closes: #14224

Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index f2ff3a8..fd37d97 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -1,4 +1,4 @@
-*eval.txt*	For Vim version 9.1.  Last change: 2024 Mar 20
+*eval.txt*	For Vim version 9.1.  Last change: 2024 Mar 28
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -2601,6 +2601,10 @@
 v:t_object	Value of |object| type.  Read-only.  See: |type()|
 					*v:t_typealias* *t_typealias-variable*
 v:t_typealias	Value of |typealias| type.  Read-only.  See: |type()|
+					*v:t_enum* *t_enum-variable*
+v:t_enum	Value of |enum| type.  Read-only.  See: |type()|
+					*v:t_enumvalue* *t_enumvalue-variable*
+v:t_enumvalue	Value of |enumvalue| type.  Read-only.  See: |type()|
 
 				*v:termresponse* *termresponse-variable*
 v:termresponse	The escape sequence returned by the terminal for the |t_RV|