Index: src/ResolvExpr/ConversionCost.h
===================================================================
--- src/ResolvExpr/ConversionCost.h	(revision ea6332d2c7319372654f557cb69ec651fdc92331)
+++ src/ResolvExpr/ConversionCost.h	(revision eca3d10a1ab4edc7bc00f5acdf10a9a1f592d8da)
@@ -37,4 +37,5 @@
 		virtual void visit(PointerType *pointerType);
 		virtual void visit(ArrayType *arrayType);
+		virtual void visit(ReferenceType *refType);
 		virtual void visit(FunctionType *functionType);
 		virtual void visit(StructInstType *aggregateUseType);
@@ -53,4 +54,6 @@
 		const TypeEnvironment &env;
 	};
+
+	Cost convertToReferenceCost( Type * src, ReferenceType * dest, const SymTab::Indexer & indexer, const TypeEnvironment & env );
 } // namespace ResolvExpr