diff -r e79347eebbc5 -r ea4a2ec31ae2 hotspot/src/share/vm/opto/type.hpp
--- a/hotspot/src/share/vm/opto/type.hpp	Sat Sep 10 17:29:02 2011 -0700
+++ b/hotspot/src/share/vm/opto/type.hpp	Sun Sep 11 14:48:24 2011 -0700
@@ -64,6 +64,8 @@
 // different kind of Type exists.  Types are never modified after creation, so
 // all their interesting fields are constant.
 class Type {
+  friend class VMStructs;
+
 public:
   enum TYPES {
     Bad=0,                      // Type check