Add beam typenames to typename list.

diff --git a/lily/include/lily-proto.hh b/lily/include/lily-proto.hh
index 4a7497a6a7d23e255abe9703db07bc0b84c9c1bc..5cde918e3f9401bb5bda86cddb152410ab828545 100644 (file)
--- a/lily/include/lily-proto.hh
+++ b/lily/include/lily-proto.hh
@@ -42,6 +42,9 @@ class Axis_group_engraver;
 class Bar_engraver;
 class Bar_req_collect_engraver;
 class Beaming_pattern;
+class Beam_scoring_problem;
+class Beam_configuration;
+class Beam_quant_parameters;
 class Bezier;
 class Bezier_bow;
 class Book;