Bisect clang

tools/clang/blink_gc_plugin/tests/base_class_must_define_virtual_trace.cpp

Index: tools/clang/blink_gc_plugin/tests/base_class_must_define_virtual_trace.cpp
diff --git a/tools/clang/blink_gc_plugin/tests/base_class_must_define_virtual_trace.cpp b/tools/clang/blink_gc_plugin/tests/base_class_must_define_virtual_trace.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..cd38ec90fa96e20bc7ad52b3ca07f688e8a1a215
--- /dev/null
+++ b/tools/clang/blink_gc_plugin/tests/base_class_must_define_virtual_trace.cpp
@@ -0,0 +1,19 @@
+// 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 "base_class_must_define_virtual_trace.h"
+
+namespace blink {
+
+void PartDerived::trace(Visitor* visitor)
+{
+}
+
+void HeapDerived::trace(Visitor* visitor)
+{
+    visitor->trace(m_part);
+}
+
+
+}