Bisect clang

tools/clang/blink_gc_plugin/tests/fields_require_tracing.cpp

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "fields_require_tracing.h"
+
+namespace blink {
+
+void PartObject::trace(Visitor* visitor) {
+    m_obj1->trace(visitor); // Don't allow direct tracing.
+    visitor->trace(m_obj2);
+    // Missing visitor->trace(m_obj3);
+    visitor->trace(m_parts);
+}
+
+void PartBObject::trace(Visitor* visitor) {
+  // Missing visitor->trace(m_set);
+  visitor->trace(m_vector);
+}
+
+void HeapObject::trace(Visitor* visitor) {
+    // Missing visitor->trace(m_part);
+    visitor->trace(m_obj);
+}
+
+}