Issue 3938: Add `ly:undead?' to predicate list.

diff --git a/scm/lily.scm b/scm/lily.scm
index 5d230d8f7eb9eef7439af897fe2d6418b1a81e46..44f9f62258342c89fde8066b844b1596d94b7709 100644 (file)
--- a/scm/lily.scm
+++ b/scm/lily.scm
@@ -725,6 +725,7 @@ messages into errors.")
     (,ly:stream-event? . "stream event")
     (,ly:translator? . "translator")
     (,ly:translator-group? . "translator group")
+    (,ly:undead? . "undead container")
     (,ly:unpure-pure-container? . "unpure/pure container")
     ))