patch 9.0.0335: checks for Dictionary argument often give a vague errorv9.0.0335

Problem:    Checks for Dictionary argument often give a vague error message.
Solution:   Give a useful error message. (Yegappan Lakshmanan, closes #11009)

1 files changed, 1 insertions, 4 deletions

diff --git a/src/map.c b/src/map.c
index 3516f7ae24..f870b96831 100644
--- a/src/map.c
+++ b/src/map.c
@@ -2635,11 +2635,8 @@ f_mapset(typval_T *argvars, typval_T *rettv UNUSED)
 	    return;
 	is_abbr = (int)tv_get_bool(&argvars[1]);
 
-	if (argvars[2].v_type != VAR_DICT)
-	{
-	    emsg(_(e_dictionary_required));
+	if (check_for_dict_arg(argvars, 2) == FAIL)
 	    return;
-	}
 	d = argvars[2].vval.v_dict;
     }
     mode = get_map_mode_string(which, is_abbr);