--- old/src/hotspot/share/opto/type.hpp	2018-02-22 16:36:26.992499842 +0100
+++ new/src/hotspot/share/opto/type.hpp	2018-02-22 16:36:26.800501086 +0100
@@ -1121,6 +1121,9 @@
   virtual const TypeInstPtr *xmeet_unloaded( const TypeInstPtr *t ) const;
   virtual const Type *xdual() const;    // Compute dual right now.
 
+  const bool     is_value_based() const;
+  const bool can_be_value_based() const;
+
   // Convenience common pre-built types.
   static const TypeInstPtr *NOTNULL;
   static const TypeInstPtr *BOTTOM;