Intrinsic for java.lang.Thread.currentThread.

Change-Id: I056323a74f8759257bf6b6bb032437e576665006
diff --git a/src/thread.h b/src/thread.h
index 4c065c5..8b9c81d 100644
--- a/src/thread.h
+++ b/src/thread.h
@@ -442,6 +442,10 @@
     return ThreadOffset(OFFSETOF_MEMBER(Thread, exception_));
   }
 
+  static ThreadOffset PeerOffset() {
+    return ThreadOffset(OFFSETOF_MEMBER(Thread, opeer_));
+  }
+
   static ThreadOffset ThinLockIdOffset() {
     return ThreadOffset(OFFSETOF_MEMBER(Thread, thin_lock_id_));
   }