patch 9.1.0314: Vim9: Can define a class in a function

Problem:  Vim9: Can define a class in a function
          (Doug Kearns)
Solution: Give an error for a class defined in a function,
          slightly reword some public error messages
          (Yegappan Lakshmanan)

fixes: #13184
fixes: #13326
closes: #14537

Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/tags b/runtime/doc/tags
index fc55f84..229a4ef 100644
--- a/runtime/doc/tags
+++ b/runtime/doc/tags
@@ -4534,6 +4534,7 @@
 E1424	vim9class.txt	/*E1424*
 E1425	vim9class.txt	/*E1425*
 E1426	vim9class.txt	/*E1426*
+E1429	vim9class.txt	/*E1429*
 E143	autocmd.txt	/*E143*
 E144	various.txt	/*E144*
 E145	starting.txt	/*E145*
diff --git a/runtime/doc/vim9.txt b/runtime/doc/vim9.txt
index ffb5c2e..7a49aa0 100644
--- a/runtime/doc/vim9.txt
+++ b/runtime/doc/vim9.txt
@@ -1,4 +1,4 @@
-*vim9.txt*	For Vim version 9.1.  Last change: 2024 Apr 12
+*vim9.txt*	For Vim version 9.1.  Last change: 2024 Apr 13
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -1521,7 +1521,6 @@
 	:type MyList list<string>
 Custom types must start with a capital letter, to avoid name clashes with
 builtin types added later, similarly to user functions.
-{not implemented yet}
 
 And classes and interfaces can be used as types: >
 	:class MyClass
diff --git a/runtime/doc/vim9class.txt b/runtime/doc/vim9class.txt
index 804e02d..ef96aa9 100644
--- a/runtime/doc/vim9class.txt
+++ b/runtime/doc/vim9class.txt
@@ -1,4 +1,4 @@
-*vim9class.txt*	For Vim version 9.1.  Last change: 2024 Apr 04
+*vim9class.txt*	For Vim version 9.1.  Last change: 2024 Apr 13
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -593,7 +593,7 @@
 defined in one script file.  It is not possible to add to a class later.
 
 A class can only be defined in a |Vim9| script file.  *E1316*
-A class cannot be defined inside a function.
+A class cannot be defined inside a function.  *E1429*
 
 It is possible to define more than one class in a script file.  Although it
 usually is better to export only one main class.  It can be useful to define