Make sure classes with different access checks are not GVN-ed

Change-Id: I89f72fef3be35a4dd9585d97d03a3150386e0891
diff --git a/compiler/optimizing/graph_visualizer.cc b/compiler/optimizing/graph_visualizer.cc
index d38f4c8..922c46a 100644
--- a/compiler/optimizing/graph_visualizer.cc
+++ b/compiler/optimizing/graph_visualizer.cc
@@ -362,6 +362,8 @@
   void VisitLoadClass(HLoadClass* load_class) OVERRIDE {
     StartAttributeStream("gen_clinit_check") << std::boolalpha
         << load_class->MustGenerateClinitCheck() << std::noboolalpha;
+    StartAttributeStream("needs_access_check") << std::boolalpha
+        << load_class->NeedsAccessCheck() << std::noboolalpha;
   }
 
   void VisitCheckCast(HCheckCast* check_cast) OVERRIDE {