patch 9.0.1722: wrong error messages when passing wrong types to count()

Commit: 
https://github.com/vim/vim/commit/4f389e7c0fe7dfeccfa512a72fa36f9028d57159
Author: zeertzjq <[email protected]>
Date:   Thu Aug 17 22:10:40 2023 +0200

    patch 9.0.1722: wrong error messages when passing wrong types to count()
    
    Problem: wrong error messages when passing wrong types to count()
    Solution: fix it
    
    This fixes two problems:
    1. When passing wrong type to {ic} argument of count(), two error
       messages are given, the second of which is misleading.
    2. When passing wrong type to {comp} argument of count(), the error
       message doesn't mention that {comp} may be a String.
    
    closes: #12825
    
    Signed-off-by: Christian Brabandt <[email protected]>
    Co-authored-by: zeertzjq <[email protected]>

diff --git a/src/errors.h b/src/errors.h
index 6ef47000a..1c1b146c9 100644
--- a/src/errors.h
+++ b/src/errors.h
@@ -1802,7 +1802,8 @@ EXTERN char 
e_funcref_variable_name_must_start_with_capital_str[]
        INIT(= N_("E704: Funcref variable name must start with a capital: %s"));
 EXTERN char e_variable_name_conflicts_with_existing_function_str[]
        INIT(= N_("E705: Variable name conflicts with existing function: %s"));
-// E706 unused
+EXTERN char e_argument_of_str_must_be_list_string_or_dictionary[]
+       INIT(= N_("E706: Argument of %s must be a List, String or Dictionary"));
 EXTERN char e_function_name_conflicts_with_variable_str[]
        INIT(= N_("E707: Function name conflicts with variable: %s"));
 EXTERN char e_slice_must_come_last[]
diff --git a/src/list.c b/src/list.c
index d52c23dea..933480f55 100644
--- a/src/list.c
+++ b/src/list.c
@@ -2735,8 +2735,9 @@ f_count(typval_T *argvars, typval_T *rettv)
        else
            n = dict_count(argvars[0].vval.v_dict, &argvars[1], ic);
     }
-    else
-       semsg(_(e_argument_of_str_must_be_list_or_dictionary), "count()");
+    else if (!error)
+       semsg(_(e_argument_of_str_must_be_list_string_or_dictionary),
+                                                                   "count()");
     rettv->vval.v_number = n;
 }
 
diff --git a/src/testdir/test_functions.vim b/src/testdir/test_functions.vim
index 750c4a2bf..e5d56ac18 100644
--- a/src/testdir/test_functions.vim
+++ b/src/testdir/test_functions.vim
@@ -1749,7 +1749,8 @@ func Test_count()
   call assert_equal(2, count("fooooo", "oo"))
   call assert_equal(0, count("foo", ""))
 
-  call assert_fails('call count(0, 0)', 'E712:')
+  call assert_fails('call count(0, 0)', 'E706:')
+  call assert_fails('call count("", "", {})', ['E728:', 'E728:'])
 endfunc
 
 func Test_changenr()
diff --git a/src/version.c b/src/version.c
index c4098c2e7..1809d0d2b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1722,
 /**/
     1721,
 /**/

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