Stop casting struct CFXJSE_ArgumentsImpl to unrelated class CFXJSE_Arguments

xfa/fxjse/dynprop.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "xfa/fxjse/cfxjse_arguments.h"
 #include "xfa/fxjse/class.h"
 #include "xfa/fxjse/value.h"
 
 static void FXJSE_DynPropGetterAdapter_MethodCallback(
     const v8::FunctionCallbackInfo<v8::Value>& info) {
   v8::Local<v8::Object> hCallBackInfo = info.Data().As<v8::Object>();
   FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>(
       hCallBackInfo->GetAlignedPointerFromInternalField(0));
   v8::Local<v8::String> hPropName =
       hCallBackInfo->GetInternalField(1).As<v8::String>();
   ASSERT(lpClass && !hPropName.IsEmpty());
   v8::String::Utf8Value szPropName(hPropName);
   CFX_ByteStringC szFxPropName = *szPropName;
   std::unique_ptr<CFXJSE_Value> lpThisValue(
       new CFXJSE_Value(info.GetIsolate()));
   lpThisValue->ForceSetValue(info.This());
   std::unique_ptr<CFXJSE_Value> lpRetValue(new CFXJSE_Value(info.GetIsolate()));
-  CFXJSE_ArgumentsImpl impl = {&info, lpRetValue.get()};
-  lpClass->dynMethodCall(lpThisValue.get(), szFxPropName,
-                         reinterpret_cast<CFXJSE_Arguments&>(impl));
+  CFXJSE_Arguments impl(&info, lpRetValue.get());
+  lpClass->dynMethodCall(lpThisValue.get(), szFxPropName, impl);
   if (!lpRetValue->DirectGetValue().IsEmpty()) {
     info.GetReturnValue().Set(lpRetValue->DirectGetValue());
   }
 }
 
 static void FXJSE_DynPropGetterAdapter(const FXJSE_CLASS_DESCRIPTOR* lpClass,
                                        CFXJSE_Value* pObject,
                                        const CFX_ByteStringC& szPropName,
                                        CFXJSE_Value* pValue) {
   ASSERT(lpClass);
@@ skipping 177 matching lines @@
           : 0,
       lpClassDefinition->dynPropDeleter
           ? FXJSE_V8_GenericNamedPropertyDeleterCallback
           : 0,
       FXJSE_V8_GenericNamedPropertyEnumeratorCallback,
       v8::External::New(pIsolate,
                         const_cast<FXJSE_CLASS_DESCRIPTOR*>(lpClassDefinition)),
       v8::PropertyHandlerFlags::kNonMasking);
   hObjectTemplate->SetHandler(configuration);
 }