patch 8.2.4932: not easy to filter the output of maplist()

Problem:    Not easy to filter the output of maplist().
Solution:   Add mode_bits to the dictionary. (Ernie Rael, closes #10356)
diff --git a/src/map.c b/src/map.c
index 48196f2..a93cb2e 100644
--- a/src/map.c
+++ b/src/map.c
@@ -2303,6 +2303,7 @@
     dict_add_number(dict, "nowait", mp->m_nowait ? 1L : 0L);
     dict_add_string(dict, "mode", mapmode);
     dict_add_number(dict, "abbr", abbr ? 1L : 0L);
+    dict_add_number(dict, "mode_bits", mp->m_mode);
 
     vim_free(mapmode);
 }
diff --git a/src/testdir/test_map_functions.vim b/src/testdir/test_map_functions.vim
index e138076..d8c079c 100644
--- a/src/testdir/test_map_functions.vim
+++ b/src/testdir/test_map_functions.vim
@@ -19,13 +19,13 @@
         \ 'lhsraw': "foo\x80\xfc\x04V", 'lhsrawalt': "foo\x16",
         \ 'mode': ' ', 'nowait': 0, 'expr': 0, 'sid': sid, 'scriptversion': 1,
         \ 'lnum': lnum + 1, 
-	\ 'rhs': 'is<F4>foo', 'buffer': 0, 'abbr': 0},
+	\ 'rhs': 'is<F4>foo', 'buffer': 0, 'abbr': 0, 'mode_bits': 0x47},
 	\ maparg('foo<C-V>', '', 0, 1))
   call assert_equal({'silent': 1, 'noremap': 1, 'script': 1, 'lhs': 'bar',
         \ 'lhsraw': 'bar', 'mode': 'v',
         \ 'nowait': 0, 'expr': 1, 'sid': sid, 'scriptversion': 1,
         \ 'lnum': lnum + 2,
-	\ 'rhs': 'isbar', 'buffer': 1, 'abbr': 0},
+	\ 'rhs': 'isbar', 'buffer': 1, 'abbr': 0, 'mode_bits': 0x42},
         \ 'bar'->maparg('', 0, 1))
   let lnum = expand('<sflnum>')
   map <buffer> <nowait> foo bar
@@ -33,7 +33,7 @@
         \ 'lhsraw': 'foo', 'mode': ' ',
         \ 'nowait': 1, 'expr': 0, 'sid': sid, 'scriptversion': 1,
         \ 'lnum': lnum + 1, 'rhs': 'bar',
-	\ 'buffer': 1, 'abbr': 0},
+	\ 'buffer': 1, 'abbr': 0, 'mode_bits': 0x47},
         \ maparg('foo', '', 0, 1))
   let lnum = expand('<sflnum>')
   tmap baz foo
@@ -41,7 +41,7 @@
         \ 'lhsraw': 'baz', 'mode': 't',
         \ 'nowait': 0, 'expr': 0, 'sid': sid, 'scriptversion': 1,
         \ 'lnum': lnum + 1, 'rhs': 'foo',
-	\ 'buffer': 0, 'abbr': 0},
+        \ 'buffer': 0, 'abbr': 0, 'mode_bits': 0x80},
         \ maparg('baz', 't', 0, 1))
   let lnum = expand('<sflnum>')
   iab A B
@@ -49,7 +49,7 @@
         \ 'lhsraw': 'A', 'mode': 'i',
         \ 'nowait': 0, 'expr': 0, 'sid': sid, 'scriptversion': 1,
         \ 'lnum': lnum + 1, 'rhs': 'B',
-	\ 'buffer': 0, 'abbr': 1},
+	\ 'buffer': 0, 'abbr': 1, 'mode_bits': 0x0010},
         \ maparg('A', 'i', 1, 1))
   iuna A
 
diff --git a/src/testdir/test_vim9_builtin.vim b/src/testdir/test_vim9_builtin.vim
index 2c4e9ae..3405d9e 100644
--- a/src/testdir/test_vim9_builtin.vim
+++ b/src/testdir/test_vim9_builtin.vim
@@ -2464,7 +2464,8 @@
         scriptversion: 999999,
         rhs: 'bar',
         buffer: 0,
-        abbr: 0})
+        abbr: 0,
+        mode_bits: 0x47})
   unmap foo
   v9.CheckDefAndScriptFailure(['maparg(1)'], ['E1013: Argument 1: type mismatch, expected string but got number', 'E1174: String required for argument 1'])
   v9.CheckDefAndScriptFailure(['maparg("a", 2)'], ['E1013: Argument 2: type mismatch, expected string but got number', 'E1174: String required for argument 2'])
diff --git a/src/version.c b/src/version.c
index 97fbf17..e7affba 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4932,
+/**/
     4931,
 /**/
     4930,