Exception Handling: libdex integration. Also added unit test on exception.

Runtime processing of TryItem and CatchHandler. Added iterator.

Next step: Exception Handling: RT integration. Implement throw and
unwind.

Change-Id: Idf88ce83e37b004016f1eca2c621e5a86948fe91
diff --git a/src/class_linker.h b/src/class_linker.h
index edd48eb..fa50537 100644
--- a/src/class_linker.h
+++ b/src/class_linker.h
@@ -201,6 +201,7 @@
   FRIEND_TEST(DexCacheTest, Open);
   friend class ObjectTest;
   FRIEND_TEST(ObjectTest, AllocObjectArray);
+  FRIEND_TEST(ExceptionTest, MyClass_F_G);
   DISALLOW_COPY_AND_ASSIGN(ClassLinker);
 };