patch 8.2.0500: using the same loop in many places

Problem:    Using the same loop in many places.
Solution:   Define more FOR_ALL macros. (Yegappan Lakshmanan, closes #5339)
diff --git a/src/quickfix.c b/src/quickfix.c
index f82a187..127811a 100644
--- a/src/quickfix.c
+++ b/src/quickfix.c
@@ -6911,7 +6911,7 @@
 	qf_store_title(qfl, title);
     }
 
-    for (li = list->lv_first; li != NULL; li = li->li_next)
+    FOR_ALL_LIST_ITEMS(list, li)
     {
 	if (li->li_tv.v_type != VAR_DICT)
 	    continue; // Skip non-dict items