Index: src/SymTab/Validate.cc
===================================================================
--- src/SymTab/Validate.cc	(revision 21a2a7d9c6395caabfb563f85756ba506c922512)
+++ src/SymTab/Validate.cc	(revision 9082d7e82d9a7493aed9e548946de1837caa325a)
@@ -55,6 +55,7 @@
 #include "Common/ScopedMap.h"          // for ScopedMap
 #include "Common/SemanticError.h"      // for SemanticError
+#include "Common/ToString.hpp"         // for toCString
 #include "Common/UniqueName.h"         // for UniqueName
-#include "Common/utility.h"            // for operator+, cloneAll, deleteAll
+#include "Common/utility.h"            // for cloneAll, deleteAll
 #include "CompilationState.h"          // skip some passes in new-ast build
 #include "Concurrency/Keywords.h"      // for applyKeywords