patch 9.0.1396: sort(list, 'N') does not work in Vim9 script context

Problem:    sort(list, 'N') does not work in Vim9 script context.
Solution:   Convert string to number without giving an error. (closes #12061)
diff --git a/src/list.c b/src/list.c
index ae9e3e9..991be8b 100644
--- a/src/list.c
+++ b/src/list.c
@@ -1910,8 +1910,8 @@
 
     if (sortinfo->item_compare_numbers)
     {
-	varnumber_T	v1 = tv_get_number(tv1);
-	varnumber_T	v2 = tv_get_number(tv2);
+	varnumber_T	v1 = tv_to_number(tv1);
+	varnumber_T	v2 = tv_to_number(tv2);
 
 	return v1 == v2 ? 0 : v1 > v2 ? 1 : -1;
     }
@@ -2831,7 +2831,7 @@
     }
     else if (argvars[0].v_type == VAR_DICT && argvars[1].v_type == VAR_DICT)
     {
-	// Check that extend() does not change the type of the list if it was
+	// Check that extend() does not change the type of the dict if it was
 	// declared.
 	if (!is_new && in_vim9script() && argvars[0].vval.v_dict != NULL)
 	    type = argvars[0].vval.v_dict->dv_type;