patch 8.2.5039: confusing error if first argument of popup_create() is wrong

Problem:    Confusing error if first argument of popup_create() is wrong.
Solution:   Give a more informative error.
diff --git a/src/errors.h b/src/errors.h
index 3e5252c..8ca2a3e 100644
--- a/src/errors.h
+++ b/src/errors.h
@@ -3284,3 +3284,7 @@
 EXTERN char e_bitshift_ops_must_be_postive[]
 	INIT(= N_("E1283: Bitshift amount must be a positive number"));
 #endif
+#if defined(FEAT_PROP_POPUP)
+EXTERN char e_argument_1_list_item_nr_dictionary_required[]
+	INIT(= N_("E1284: Argument 1, list item %d: Dictionary required"));
+#endif
diff --git a/src/popupwin.c b/src/popupwin.c
index 9687401..5074eaa 100644
--- a/src/popupwin.c
+++ b/src/popupwin.c
@@ -1047,7 +1047,7 @@
     {
 	if (li->li_tv.v_type != VAR_DICT)
 	{
-	    emsg(_(e_dictionary_required));
+	    semsg(_(e_argument_1_list_item_nr_dictionary_required), lnum + 1);
 	    return;
 	}
 	dict = li->li_tv.vval.v_dict;
@@ -1685,7 +1685,9 @@
 
 	if (l != NULL && l->lv_len > 0)
 	{
-	    if (l->lv_first->li_tv.v_type == VAR_STRING)
+	    if (l->lv_first == &range_list_item)
+		emsg(_(e_using_number_as_string));
+	    else if (l->lv_first->li_tv.v_type == VAR_STRING)
 		// list of strings
 		add_popup_strings(buf, l);
 	    else
diff --git a/src/testdir/dumps/Test_popup_settext_07.dump b/src/testdir/dumps/Test_popup_settext_07.dump
index 146dec6..2362aa7 100644
--- a/src/testdir/dumps/Test_popup_settext_07.dump
+++ b/src/testdir/dumps/Test_popup_settext_07.dump
@@ -7,4 +7,4 @@
 |~| @73
 |~| @73
 |~| @73
-|E+0#ffffff16#e000002|7|1|5|:| |D|i|c|t|i|o|n|a|r|y| |r|e|q|u|i|r|e|d| +0#0000000#ffffff0@31|0|,|0|-|1| @8|A|l@1| 
+|E+0#ffffff16#e000002|1|0|2|4|:| |U|s|i|n|g| |a| |N|u|m|b|e|r| |a|s| |a| |S|t|r|i|n|g| +0#0000000#ffffff0@23|0|,|0|-|1| @8|A|l@1| 
diff --git a/src/testdir/test_popupwin.vim b/src/testdir/test_popupwin.vim
index 178f235..a78816b 100644
--- a/src/testdir/test_popupwin.vim
+++ b/src/testdir/test_popupwin.vim
@@ -1072,7 +1072,7 @@
   call assert_fails('call popup_create("text", #{borderchars: "none"})', 'E714:')
   call popup_clear()
 
-  call assert_fails('call popup_create([#{text: "text"}, 666], {})', 'E715:')
+  call assert_fails('call popup_create([#{text: "text"}, 666], {})', 'E1284: Argument 1, list item 2: Dictionary required')
   call popup_clear()
   call assert_fails('call popup_create([#{text: "text", props: "none"}], {})', 'E714:')
   call popup_clear()
@@ -1091,6 +1091,11 @@
   call popup_clear()
   call assert_fails('call popup_create("text", #{tabpage : 4})', 'E997:')
   call popup_clear()
+
+  call assert_fails('call popup_create(range(10), {})', 'E1024:')
+  call popup_clear()
+  call assert_fails('call popup_create([1, 2], {})', 'E1284: Argument 1, list item 1: Dictionary required')
+  call popup_clear()
 endfunc
 
 func Test_win_execute_closing_curwin()
diff --git a/src/version.c b/src/version.c
index cc97687..9e51afe 100644
--- a/src/version.c
+++ b/src/version.c
@@ -735,6 +735,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    5039,
+/**/
     5038,
 /**/
     5037,