Dead code elimination based on GVN results.

Change-Id: I5b77411a8f088f0b561da14b123cf6b0501c9db5
diff --git a/compiler/dex/mir_field_info.h b/compiler/dex/mir_field_info.h
index ff427f8..98b2da8 100644
--- a/compiler/dex/mir_field_info.h
+++ b/compiler/dex/mir_field_info.h
@@ -149,6 +149,7 @@
 
   friend class NullCheckEliminationTest;
   friend class GlobalValueNumberingTest;
+  friend class GvnDeadCodeEliminationTest;
   friend class LocalValueNumberingTest;
 };
 
@@ -223,6 +224,7 @@
 
   friend class ClassInitCheckEliminationTest;
   friend class GlobalValueNumberingTest;
+  friend class GvnDeadCodeEliminationTest;
   friend class LocalValueNumberingTest;
 };