add match-fit to debug op

libwccl/parser/grammar.g

@@ -1360,11 +1360,18 @@ debug_print_operator
 			}
 		)
 	|
+		(bool_operator [tagset, vars]) =>
 		(
 			v = bool_operator [tagset, vars] {
 				ret.reset(new DebugPrint(v));
 			}
 		)
+	|
+		(
+			v = match_fit [tagset, vars] {
+				ret.reset(new DebugPrint(v));
+			}
+		)
 	)
 	RPAREN
 ;