Add expr_known to expression type enum.

diff --git a/includes/tree.h b/includes/tree.h
index 2cfe2357c11bb8682dad3d8e28302c488e623b2c..1f967f2b38e51c3f9684d855ce38d50f54f10344 100644 (file)
--- a/includes/tree.h
+++ b/includes/tree.h
@@ -77,6 +77,7 @@ enum expr_op {
        expr_const_int,
        expr_exists,
        expr_encapsulate,
+       expr_known,
 };
 
 struct expression {