Implement Interface Method Tables (IMT).

Change-Id: Idf7fe85e1293453a8ad862ff2380dcd5db4e3a39
diff --git a/runtime/mirror/art_method-inl.h b/runtime/mirror/art_method-inl.h
index ccf3e59..c9bf160 100644
--- a/runtime/mirror/art_method-inl.h
+++ b/runtime/mirror/art_method-inl.h
@@ -202,6 +202,13 @@
   DCHECK(!result || IsRuntimeMethod());
   return result;
 }
+
+inline bool ArtMethod::IsImtConflictMethod() const {
+  bool result = this == Runtime::Current()->GetImtConflictMethod();
+  // Check that if we do think it is phony it looks like the imt conflict method.
+  DCHECK(!result || IsRuntimeMethod());
+  return result;
+}
 }  // namespace mirror
 }  // namespace art