fix polymer copy-instance-attributes feature

pkg/pkg.status

Index: pkg/pkg.status
diff --git a/pkg/pkg.status b/pkg/pkg.status
index 8e66b37b128aa6a619d684dc516ed6647a4bf939..729905904b334d5620cba4ac8db14174b77477f0 100644
--- a/pkg/pkg.status
+++ b/pkg/pkg.status
@@ -60,6 +60,7 @@ polymer/test/attr_deserialize_test: Fail # Issue 12865, 13197
 polymer/test/attr_mustache_test: Fail # Issue 12865, 13197
 polymer/test/event_path_test: Fail # Issue 12865, 13197
 polymer/test/events_test: Fail # Issue 12865, 13197
+polymer/test/instance_attrs_test: Fail # Issue 12865, 13197
 polymer/test/prop_attr_reflection_test: Fail # Issue 12865, 13197
 
 [ $runtime == ie9 || $runtime == ie10 ]
@@ -67,6 +68,7 @@ polymer/test/attr_deserialize_test: Fail, Timeout # Issue 12865, 13197, 13260
 polymer/test/attr_mustache_test: Fail, Timeout # Issue 12865, 13197, 13260
 polymer/test/event_path_test: Fail, Timeout # Issue 12865, 13197, 13260
 polymer/test/events_test: Fail, Timeout # Issue 12865, 13197, 13260
+polymer/test/instance_attrs_test: Fail, Timeout # Issue 12865, 13197, 13260
 polymer/test/prop_attr_reflection_test: Fail, Timeout # Issue 12865, 13197, 13260
 polymer/test/publish_attributes_test: Fail, Timeout # Issue 12865, 13197, 13260
 polymer/test/take_attributes_test: Fail, Timeout # Issue 12865, 13197, 13260
@@ -76,6 +78,7 @@ polymer/test/attr_deserialize_test: Pass, Timeout # Issue 13260
 polymer/test/attr_mustache_test: Pass, Timeout # Issue 13260
 polymer/test/event_path_test: Pass, Timeout # Issue 13260
 polymer/test/events_test: Pass, Timeout # Issue 13260
+polymer/test/instance_attrs_test: Pass, Timeout # Issue 13260
 polymer/test/prop_attr_reflection_test: Pass, Timeout # Issue 13260
 polymer/test/publish_attributes_test: Pass, Timeout # Issue 13260
 polymer/test/take_attributes_test: Pass, Timeout # Issue 13260