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diff --git a/Source/JavaScriptCore/runtime/InternalFunction.h b/Source/JavaScriptCore/runtime/InternalFunction.h
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+++ b/Source/JavaScriptCore/runtime/InternalFunction.h
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+/*
+ *  Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
+ *  Copyright (C) 2003, 2006, 2007, 2008 Apple Inc. All rights reserved.
+ *  Copyright (C) 2007 Cameron Zwarich (cwzwarich@uwaterloo.ca)
+ *  Copyright (C) 2007 Maks Orlovich
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Library General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Library General Public License
+ *  along with this library; see the file COPYING.LIB.  If not, write to
+ *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef InternalFunction_h
+#define InternalFunction_h
+
+#include "JSObjectWithGlobalObject.h"
+#include "Identifier.h"
+
+namespace JSC {
+
+    class FunctionPrototype;
+
+    class InternalFunction : public JSObjectWithGlobalObject {
+    public:
+        virtual const ClassInfo* classInfo() const; 
+        static JS_EXPORTDATA const ClassInfo info;
+
+        const UString& name(ExecState*);
+        const UString displayName(ExecState*);
+        const UString calculatedDisplayName(ExecState*);
+
+        static PassRefPtr<Structure> createStructure(JSValue proto) 
+        { 
+            return Structure::create(proto, TypeInfo(ObjectType, StructureFlags), AnonymousSlotCount); 
+        }
+
+    protected:
+        static const unsigned StructureFlags = ImplementsHasInstance | JSObject::StructureFlags;
+
+        // Only used to allow us to determine the JSFunction vptr
+        InternalFunction(NonNullPassRefPtr<Structure> structure);
+
+        InternalFunction(JSGlobalData*, JSGlobalObject*, NonNullPassRefPtr<Structure>, const Identifier&);
+
+    private:
+        virtual CallType getCallData(CallData&) = 0;
+    };
+
+    InternalFunction* asInternalFunction(JSValue);
+
+    inline InternalFunction* asInternalFunction(JSValue value)
+    {
+        ASSERT(asObject(value)->inherits(&InternalFunction::info));
+        return static_cast<InternalFunction*>(asObject(value));
+    }
+
+} // namespace JSC
+
+#endif // InternalFunction_h