patch 8.2.2310: Vim9: winsaveview() return type is too generic

Problem:    Vim9: winsaveview() return type is too generic.
Solution:   use dict<number> instead of dict<any>. (closes #7626)

src/evalfunc.c

@@ -1753,7 +1753,7 @@ static funcentry_T global_functions[] =
     {"winrestview",	1, 1, FEARG_1,	    NULL,
 			ret_void,	    f_winrestview},
     {"winsaveview",	0, 0, 0,	    NULL,
-			ret_dict_any,	    f_winsaveview},
+			ret_dict_number,    f_winsaveview},
     {"winwidth",	1, 1, FEARG_1,	    NULL,
 			ret_number,	    f_winwidth},
     {"wordcount",	0, 0, 0,	    NULL,

src/testdir/test_vim9_builtin.vim

@@ -786,6 +786,16 @@ def Test_winrestcmd()
   close
 enddef
 
+def Test_winsaveview()
+  var view: dict<number> = winsaveview()
+
+  var lines =<< trim END
+      var view: list<number> = winsaveview()
+  END
+  CheckDefAndScriptFailure(lines, 'E1012: Type mismatch; expected list<number> but got dict<number>', 1)
+enddef
+
+
 
 
 " vim: ts=8 sw=2 sts=2 expandtab tw=80 fdm=marker

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2310,
 /**/
     2309,
 /**/