Track new proxy cache field in ClassLoader.

Change-Id: I4915ce6c44a8d82e767954aa8edaddf9e57971db
diff --git a/src/class_loader.h b/src/class_loader.h
index 8fe6a09..2904e3e 100644
--- a/src/class_loader.h
+++ b/src/class_loader.h
@@ -24,6 +24,7 @@
   // Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses".
   Object* packages_;
   ClassLoader* parent_;
+  Object* proxyCache_;
 
   typedef std::tr1::unordered_map<const ClassLoader*, std::vector<const DexFile*>, ObjectIdentityHash> Table;
   static Table compile_time_class_paths_;