--- a/src/jdk.compiler/share/classes/com/sun/tools/javac/tree/JCTree.java	Wed Sep 12 17:45:22 2018 -0700
+++ b/src/jdk.compiler/share/classes/com/sun/tools/javac/tree/JCTree.java	Mon Sep 10 16:59:41 2018 -0700
@@ -2217,7 +2217,8 @@
 
         public enum OverloadKind {
             OVERLOADED,
-            UNOVERLOADED
+            UNOVERLOADED,
+            ERROR
         }
 
         /**