Check consistency of manual trace and finalization dispatching.

tools/clang/blink_gc_plugin/tests/non_virtual_trace.h

Index: tools/clang/blink_gc_plugin/tests/non_virtual_trace.h
diff --git a/tools/clang/blink_gc_plugin/tests/pure_virtual_trace.h b/tools/clang/blink_gc_plugin/tests/non_virtual_trace.h
similarity index 67%
copy from tools/clang/blink_gc_plugin/tests/pure_virtual_trace.h
copy to tools/clang/blink_gc_plugin/tests/non_virtual_trace.h
index d0b67a3aada80b064775ab6963286e14e0a2f50e..daf50008b39ec03ff969ee8471b9a56ee6ddee25 100644
--- a/tools/clang/blink_gc_plugin/tests/pure_virtual_trace.h
+++ b/tools/clang/blink_gc_plugin/tests/non_virtual_trace.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef PURE_VIRTUAL_BASE_H_
-#define PURE_VIRTUAL_BASE_H_
+#ifndef NON_VIRTUAL_TRACE_H_
+#define NON_VIRTUAL_TRACE_H_
 
 #include "heap/stubs.h"
 
@@ -11,19 +11,15 @@ namespace WebCore {
 
 class A : public GarbageCollected<A> {
 public:
-    virtual void trace(Visitor*) = 0;
+    void trace(Visitor*);
 };
 
 class B : public A {
-public:
-    // Does not need a trace method.
 };
 
 class C : public B {
 public:
-    void trace(Visitor*);
-private:
-    Member<A> m_a;
+    void trace(Visitor*); // Cannot override a non-virtual trace.
 };
 
 }