vim-patch:8.2.4825: can only get a list of mappings

Problem:    Can only get a list of mappings.
Solution:   Add the optional {abbr} argument. (Ernie Rael, closes vim/vim#10277)
            Rename to maplist().  Rename test file.

09661203ec

Co-authored-by: Ernie Rael <errael@raelity.com>

runtime/doc/builtin.txt

@@ -2612,16 +2612,6 @@ getloclist({nr} [, {what}])                                       *getloclist()*
 			echo getloclist(5, {'filewinid': 0})
 <
 
-getmappings()                                                    *getmappings()*
-		Returns a |List| of all mappings.  Each List item is a |Dict|,
-		the same as what is returned by |maparg()|, see
-		|mapping-dict|.
-
-		Example to show all mappings with "MultiMatch" in rhs: >
-			echo getmappings()->filter({_, m ->
-				\ match(get(m, 'rhs', ''), 'MultiMatch') >= 0
-				\ })
-
 getmarklist([{buf}])                                             *getmarklist()*
 		Without the {buf} argument returns a |List| with information
 		about all the global marks. |mark|
@@ -4143,7 +4133,8 @@ maparg({name} [, {mode} [, {abbr} [, {dict}]]])                       *maparg()*
 		When {dict} is omitted or zero: Return the rhs of mapping
 		{name} in mode {mode}.  The returned String has special
 		characters translated like in the output of the ":map" command
-		listing.
+		listing. When {dict} is TRUE a dictionary is returned, see
+		below. To get a list of all mappings see |maplist()|.
 
 		When there is no mapping for {name}, an empty String is
 		returned if {dict} is FALSE, otherwise returns an empty Dict.
@@ -4237,6 +4228,17 @@ mapcheck({name} [, {mode} [, {abbr}]])                              *mapcheck()*
 <		This avoids adding the "_vv" mapping when there already is a
 		mapping for "_v" or for "_vvv".
 
+maplist([{abbr}])                                                    *maplist()*
+		Returns a |List| of all mappings.  Each List item is a |Dict|,
+		the same as what is returned by |maparg()|, see
+		|mapping-dict|.  When {abbr} is there and it is |TRUE| use
+		abbreviations instead of mappings.
+
+		Example to show all mappings with "MultiMatch" in rhs: >vim
+			echo maplist()->filter({_, m ->
+				\ match(get(m, 'rhs', ''), 'MultiMatch') >= 0
+				\ })
+
 mapnew({expr1}, {expr2})                                              *mapnew()*
 		Like |map()| but instead of replacing items in {expr1} a new
 		List or Dictionary is created and returned.  {expr1} remains

runtime/doc/usr_41.txt

@@ -1012,10 +1012,10 @@ Mappings and Menus:			    *mapping-functions*
 	digraph_getlist()	get all |digraph|s
 	digraph_set()		register |digraph|
 	digraph_setlist()	register multiple |digraph|s
-	getmappings()		get list of all mappings
 	hasmapto()		check if a mapping exists
 	mapcheck()		check if a matching mapping exists
 	maparg()		get rhs of a mapping
+	maplist()		get list of all mappings
 	mapset()		restore a mapping
 	menu_info()		get information about a menu item
 	wildmenumode()		check if the wildmode is active