[oilpan] The Node hierarchy should have correct accept method chains

Source/heap/Visitor.h

Index: Source/heap/Visitor.h
diff --git a/Source/heap/Visitor.h b/Source/heap/Visitor.h
index ad50c794456875fd0dcd649c0e418c76ba3709af..06c4c1ac5fb2e652479cdfeeceafaf5c46e3cc56 100644
--- a/Source/heap/Visitor.h
+++ b/Source/heap/Visitor.h
@@ -31,6 +31,7 @@
 #ifndef Visitor_h
 #define Visitor_h
 
+#include <wtf/Deque.h>
 #include <wtf/Forward.h>
 #include <wtf/HashTraits.h>
 #include <wtf/HashSet.h>
@@ -125,9 +126,16 @@ public:
     }
 
     template<typename T>
-    void visit(const HashSet<Member<T> >& vector)
+    void visit(const HashSet<Member<T> >& hashSet)
     {
-        for (typename HashSet<Member<T> >::const_iterator it = vector.begin(); it != vector.end(); ++it)
+        for (typename HashSet<Member<T> >::const_iterator it = hashSet.begin(); it != hashSet.end(); ++it)
+            visit(*it);
+    }
+
+    template<typename T>
+    void visit(const Deque<Member<T> >& deque)
+    {
+        for (typename Deque<Member<T> >::const_iterator it = deque.begin(); it != deque.end(); ++it)
             visit(*it);
     }