Move IsPointerConvertible<T, JSONValue> specialization out of TypeTraits.h

Source/wtf/TypeTraits.h

  /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2009, 2010 Google Inc. All rights reserved.
  *
  * 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,
@@ skipping 284 matching lines @@
 
 #define EnsurePtrConvertibleArgDecl(From, To) \
     typename WTF::EnableIf<WTF::IsPointerConvertible<From, To>::Value, bool>::Type = true
 #define EnsurePtrConvertibleArgDefn(From, To) \
     typename WTF::EnableIf<WTF::IsPointerConvertible<From, To>::Value, bool>::Type
 
 } // namespace WTF
 
 namespace blink {
 
-class JSONValue;
 class Visitor;
 
 } // namespace blink
 
 namespace WTF {
 
-    // FIXME: Disable pointer conversion checking against JSONValue.
-    // The current CodeGeneratorInspector.py generates code which upcasts to JSONValue from undefined types.
-    template<typename From> class IsPointerConvertible<From, blink::JSONValue> {
-    public:
-        enum {
-            Value = true
-        };
-    };
-
 template<typename T>
 class NeedsTracing {
     typedef char YesType;
     typedef struct NoType {
         char padding[8];
     } NoType;
 
     // Note that this also checks if a superclass of V has a trace method.
     template<typename V> static YesType checkHasTraceMethod(V* v, blink::Visitor* p = 0, typename EnableIf<IsSameType<decltype(v->trace(p)), void>::value>::Type* g = 0);
     template<typename V> static NoType checkHasTraceMethod(...);
@@ skipping 13 matching lines @@
 };
 
 template<typename T, typename U>
 struct NeedsTracing<std::pair<T, U>> {
     static const bool value = NeedsTracing<T>::value || NeedsTracing<U>::value || IsWeak<T>::value || IsWeak<U>::value;
 };
 
 } // namespace WTF
 
 #endif // TypeTraits_h