Sync back BUILD file

Change-Id: Ica6d8ec6223c25dd0658557625e9f424bd103292
diff --git a/user/BUILD b/user/BUILD
index 3ce86ce..90a6c10 100644
--- a/user/BUILD
+++ b/user/BUILD
@@ -397,6 +397,7 @@
     name = "gwt-jsinterop-annotations",
     srcs = [
         "src/com/google/gwt/core/client/js/JsExport.java",
+        "src/com/google/gwt/core/client/js/JsFunction.java",
         "src/com/google/gwt/core/client/js/JsNamespace.java",
         "src/com/google/gwt/core/client/js/JsNoExport.java",
         "src/com/google/gwt/core/client/js/JsProperty.java",