Fix object verification.

Refactor VERIFY_OBJECT_ENABLED to become less brittle to change enum and global
constant.

Change-Id: Ie405106be81dce9a913730c7f46a5659582fa18b
diff --git a/test/StackWalk/stack_walk_jni.cc b/test/StackWalk/stack_walk_jni.cc
index a16d896..92cfa99 100644
--- a/test/StackWalk/stack_walk_jni.cc
+++ b/test/StackWalk/stack_walk_jni.cc
@@ -22,6 +22,7 @@
 #include "mirror/abstract_method.h"
 #include "mirror/abstract_method-inl.h"
 #include "mirror/object_array-inl.h"
+#include "mirror/object-inl.h"
 #include "object_utils.h"
 #include "jni.h"
 #include "scoped_thread_state_change.h"