Index: src/AST/SymbolTable.cpp
===================================================================
--- src/AST/SymbolTable.cpp	(revision 66a89e706497d5c8753e7216edb6171cf4ad5abe)
+++ src/AST/SymbolTable.cpp	(revision e563edf0e794d4c67e735b589a1c95f7fce848f6)
@@ -28,5 +28,6 @@
 #include "InitTweak/InitTweak.h"
 #include "ResolvExpr/Cost.h"
-#include "ResolvExpr/typeops.h"
+#include "ResolvExpr/typeops.h"     // for referenceToRvalueConversion
+#include "ResolvExpr/Unify.h"
 #include "SymTab/Mangler.h"