Highlight NULL as a literal.

diff --git a/common/trace_dump.cpp b/common/trace_dump.cpp
index f40e549bacec9d1556c1141c982fb12ef4c26406..d9dcf1197737a7d1a2033fc463d0b20edfc27842 100644 (file)
--- a/common/trace_dump.cpp
+++ b/common/trace_dump.cpp
@@ -73,7 +73,7 @@ public:
     }
 
     void visit(Null *) {
-        os << "NULL";
+        os << literal << "NULL" << normal;
     }
 
     void visit(Bool *node) {