patch 8.1.0519: cannot save and restore the tag stackv8.1.0519

Problem:    Cannot save and restore the tag stack.
Solution:   Add gettagstack() and settagstack(). (Yegappan Lakshmanan,
            closes #3604)

1 files changed, 3 insertions, 0 deletions

diff --git a/src/alloc.h b/src/alloc.h
index 60fa4bd66e..36890054fd 100644
--- a/src/alloc.h
+++ b/src/alloc.h
@@ -18,5 +18,8 @@ typedef enum {
 	aid_qf_module,
 	aid_qf_errmsg,
 	aid_qf_pattern,
+	aid_tagstack_items,
+	aid_tagstack_from,
+	aid_tagstack_details,
 	aid_last
 } alloc_id_T;