add flaky tests :(

pkg/pkg.status

Index: pkg/pkg.status
diff --git a/pkg/pkg.status b/pkg/pkg.status
index 2d7954e10731a7e342e326aecbfbd5ae48728557..ccbafd7050f23b663e90381ede229735233f5be1 100644
--- a/pkg/pkg.status
+++ b/pkg/pkg.status
@@ -49,6 +49,7 @@ polymer/test/js_custom_event_test: Pass, RuntimeError # Issue 18931
 polymer/test/js_interop_test: Pass, RuntimeError # Issue 18931
 polymer/test/nested_binding_test: Pass, RuntimeError # Issue 18931
 polymer/test/noscript_test: Pass, RuntimeError # Issue 18931
+polymer/test/platform_less_test: Pass, RuntimeError # Issue 18931
 polymer/test/prop_attr_bind_reflection_test: Pass, RuntimeError # Issue 18931
 polymer/test/prop_attr_reflection_test: Pass, RuntimeError # Issue 18931
 polymer/test/property_change_test: Pass, Timeout # Issue 18931
@@ -56,6 +57,7 @@ polymer/test/publish_attributes_test: Pass, RuntimeError # Issue 18931
 polymer/test/publish_inherited_properties_test: Pass, RuntimeError # Issue 18931
 polymer/test/register_test: Pass, RuntimeError # Issue 18931
 polymer/test/take_attributes_test: Pass, RuntimeError # Issue 18931
+polymer/test/template_attr_template_test: Pass, RuntimeError # Issue 18931
 polymer/test/template_distribute_dynamic_test: Pass, RuntimeError # Issue 18931
 polymer/test/two_way_bind_test: Pass, RuntimeError # Issue 18931
 web_components/test/interop_test: Pass, RuntimeError # Issue 18931