Implement Interface Method Tables (IMT).

Change-Id: Idf7fe85e1293453a8ad862ff2380dcd5db4e3a39
diff --git a/runtime/image.h b/runtime/image.h
index 2cb468f..246f106 100644
--- a/runtime/image.h
+++ b/runtime/image.h
@@ -90,6 +90,8 @@
 
   enum ImageRoot {
     kResolutionMethod,
+    kImtConflictMethod,
+    kDefaultImt,
     kCalleeSaveMethod,
     kRefsOnlySaveMethod,
     kRefsAndArgsSaveMethod,