patch 9.1.1509: patch 9.1.1505 was not good

Problem:  Patch 9.1.1505 was not good
Solution: Revert "patch 9.1.1505: not possible to return completion type
          for :ex command" and instead add the getcompletiontype()
          function (Hirohito Higashi).

related: #17606
closes: #17662

Co-authored-by: Shougo Matsushita <Shougo.Matsu@gmail.com>
Signed-off-by: Hirohito Higashi <h.east.727@gmail.com>
Signed-off-by: Shougo Matsushita <Shougo.Matsu@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/builtin.txt b/runtime/doc/builtin.txt
index 8f9c7ba..f38948c 100644
--- a/runtime/doc/builtin.txt
+++ b/runtime/doc/builtin.txt
@@ -1,4 +1,4 @@
-*builtin.txt*	For Vim version 9.1.  Last change: 2025 Jul 03
+*builtin.txt*	For Vim version 9.1.  Last change: 2025 Jul 05
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -238,8 +238,8 @@
 getcharstr([{expr} [, {opts}]])	String	get one character from the user
 getcmdcomplpat()		String	return the completion pattern of the
 					current command-line completion
-getcmdcompltype({pat})		String	return the type of command-line
-					completion
+getcmdcompltype()		String	return the type of the current
+					command-line completion
 getcmdline()			String	return the current command-line input
 getcmdpos()			Number	return cursor position in command-line
 getcmdprompt()			String	return the current command-line prompt
@@ -249,6 +249,8 @@
 getcmdwintype()			String	return current command-line window type
 getcompletion({pat}, {type} [, {filtered}])
 				List	list of cmdline completion matches
+getcompletiontype({pat})	String	return the type of the command-line
+					completion using {pat}
 getcurpos([{winnr}])		List	position of the cursor
 getcursorcharpos([{winnr}])	List	character position of the cursor
 getcwd([{winnr} [, {tabnr}]])	String	get the current working directory
@@ -4201,16 +4203,18 @@
 		Return type: |String|
 
 
-getcmdcompltype([{pat}])				*getcmdcompltype()*
-		Return the type of command-line completion using {pat}.
-		If {pat} is omited, only works when the command line is being
-		edited, thus requires use of |c_CTRL-\_e| or |c_CTRL-R_=|.
-
+getcmdcompltype()					*getcmdcompltype()*
+		Return the type of the current command-line completion.
+		Only works when the command line is being edited, thus
+		requires use of |c_CTRL-\_e| or |c_CTRL-R_=|.
 		See |:command-completion| for the return string.
 		Also see |getcmdtype()|, |setcmdpos()|, |getcmdline()|,
 		|getcmdprompt()|, |getcmdcomplpat()| and |setcmdline()|.
 		Returns an empty string when completion is not defined.
 
+		To get the type of the command-line completion for the
+		specified string, use |getcompletiontype()|.
+
 		Return type: |String|
 
 
@@ -4369,6 +4373,15 @@
 <
 		Return type: list<string>
 
+getcompletiontype({pat})				*getcompletiontype()*
+		Return the type of the command-line completion using {pat}.
+		When no corresponding completion type is found, an empty
+		string is returned.
+		To get the current command-line completion type, use
+		|getcmdcompltype()|.
+
+		Return type: |String|
+
 							*getcurpos()*
 getcurpos([{winid}])
 		Get the position of the cursor.  This is like getpos('.'), but