runtime(doc): fix help tags for removed/reused error codes

Problem:  Several error codes (E614, E1319, E1321, E1323, E1400, E1401,
          E1402, E1406) were removed from errors.h in v9.1.0600 but
          their *Ennn* tags remained in the help files, so :help Ennn
          jumps to obsolete locations.  E1395 was later reused with a
          new meaning ("Using a null class") in v9.1.1119, but its tag
          is still placed in the type-alias section.
Solution: Remove the stale *Ennn* tags from the help files.  Move
          *E1395* to the vim9.txt null-values section to match its
          current meaning.  Also fix the indentation of *E1411*.
          Regenerate runtime/doc/tags.

closes: #20279

Signed-off-by: Hirohito Higashi <h.east.727@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

runtime/doc/builtin.txt

@@ -1,4 +1,4 @@
-*builtin.txt*	For Vim version 9.2.  Last change: 2026 May 04
+*builtin.txt*	For Vim version 9.2.  Last change: 2026 May 21
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -6259,7 +6259,7 @@ insert({object}, {item} [, {idx}])			*insert()*
 		Return type: |Number|
 
 
-instanceof({object}, {class})			*instanceof()* *E614* *E616* *E693*
+instanceof({object}, {class})			*instanceof()* *E616* *E693*
 		The result is a Number, which is |TRUE| when the {object}
 		argument is a direct or indirect instance of a |Class|,
 		|Interface|, or class |:type| alias specified by {class}.

runtime/doc/eval.txt

@@ -1,4 +1,4 @@
-*eval.txt*	For Vim version 9.2.  Last change: 2026 May 15
+*eval.txt*	For Vim version 9.2.  Last change: 2026 May 21
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -170,8 +170,8 @@ Note that " " and "0" are also non-empty strings, thus considered to be TRUE.
 A List, Dictionary or Float is not a Number or String, thus evaluate to FALSE.
 
 		*E611* *E745* *E728* *E703* *E729* *E730* *E731* *E908* *E910*
-		*E913* *E974* *E975* *E976* *E1319* *E1320* *E1321* *E1322*
-		*E1323* *E1324* *E1520* *E1522*
+		*E913* *E974* *E975* *E976* *E1320* *E1322* *E1324* *E1520*
+		*E1522*
 |List|, |Tuple|, |Dictionary|, |Funcref|, |Job|, |Channel|, |Blob|, |Class|
 and |object| types are not automatically converted.
 

runtime/doc/tags

@@ -4562,12 +4562,9 @@ E1315	vim9class.txt	/*E1315*
 E1316	vim9class.txt	/*E1316*
 E1317	vim9class.txt	/*E1317*
 E1318	vim9class.txt	/*E1318*
-E1319	eval.txt	/*E1319*
 E132	userfunc.txt	/*E132*
 E1320	eval.txt	/*E1320*
-E1321	eval.txt	/*E1321*
 E1322	eval.txt	/*E1322*
-E1323	eval.txt	/*E1323*
 E1324	eval.txt	/*E1324*
 E1325	vim9class.txt	/*E1325*
 E1326	vim9class.txt	/*E1326*
@@ -4644,19 +4641,15 @@ E1391	eval.txt	/*E1391*
 E1392	eval.txt	/*E1392*
 E1393	vim9class.txt	/*E1393*
 E1394	vim9class.txt	/*E1394*
-E1395	vim9class.txt	/*E1395*
+E1395	vim9.txt	/*E1395*
 E1396	vim9class.txt	/*E1396*
 E1397	vim9class.txt	/*E1397*
 E1398	vim9class.txt	/*E1398*
 E1399	vim9class.txt	/*E1399*
 E140	message.txt	/*E140*
-E1400	vim9class.txt	/*E1400*
-E1401	vim9class.txt	/*E1401*
-E1402	vim9class.txt	/*E1402*
 E1403	vim9class.txt	/*E1403*
 E1404	vim9class.txt	/*E1404*
 E1405	vim9class.txt	/*E1405*
-E1406	vim9class.txt	/*E1406*
 E1407	vim9class.txt	/*E1407*
 E1408	vim9class.txt	/*E1408*
 E1409	vim9class.txt	/*E1409*
@@ -5273,7 +5266,6 @@ E610	editing.txt	/*E610*
 E611	eval.txt	/*E611*
 E612	sign.txt	/*E612*
 E613	print.txt	/*E613*
-E614	builtin.txt	/*E614*
 E616	builtin.txt	/*E616*
 E617	options.txt	/*E617*
 E618	print.txt	/*E618*

runtime/doc/vim9.txt

@@ -1,4 +1,4 @@
-*vim9.txt*	For Vim version 9.2.  Last change: 2026 May 04
+*vim9.txt*	For Vim version 9.2.  Last change: 2026 May 21
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -1117,7 +1117,7 @@ should be used.
 			*false* *true* *null* *null_blob* *null_channel*
 			*null_class* *null_dict* *null_function* *null_job*
 			*null_list* *null_object* *null_partial* *null_string*
-			*E1034*
+			*E1034* *E1395*
 In Vim9 script one can use the following predefined values: >
 	true
 	false

runtime/doc/vim9class.txt

@@ -1,4 +1,4 @@
-*vim9class.txt*	For Vim version 9.2.  Last change: 2026 Mar 07
+*vim9class.txt*	For Vim version 9.2.  Last change: 2026 May 21
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -110,14 +110,14 @@ referred to with the "this." prefix.  This is different from languages like
 Java and TypeScript.  The naming convention makes the object members easy to
 spot.  Also, when a variable does not have the "this." prefix you know it is
 not an object variable.
-								*E1411*
+							*E1411*
 From outside the class definition, access an object's methods and variables by
 using the object name followed by a dot following by the member: >
 
 	pos.lnum
 	pos.SetCol(10)
 <
-							*E1405* *E1406*
+							*E1405*
 A class name cannot be used as an expression.  A class name cannot be used in
 the left-hand-side of an assignment.
 
@@ -921,7 +921,7 @@ methods defined in a class: >
 
 7.  Type definition				*typealias* *Vim9-type* *:type*
 
-					*E1393* *E1395* *E1396* *E1397* *E1398*
+						*E1393* *E1396* *E1397* *E1398*
 A type definition is giving a name to a type specification.  This is also
 known as a "type alias".  The type alias can be used wherever a built-in type
 can be used.  Example: >
@@ -942,7 +942,7 @@ types can be aliased.
 A type alias can be created only at the script level and not inside a
 function.  A type alias can be exported and used across scripts.
 
-					*E1400* *E1401* *E1402* *E1403* *E1407*
+							*E1403* *E1407*
 A type alias cannot be used as an expression.  A type alias cannot be used in
 the left-hand-side of an assignment.