Fix all the code which has duplicate variable declarations

xfa/fxfa/parser/xfa_document_datamerger_imp.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/fxfa/parser/xfa_document_datamerger_imp.h"
 
 #include "core/fxcrt/include/fx_ext.h"
 #include "xfa/fde/xml/fde_xml_imp.h"
@@ skipping 793 matching lines @@
   int32_t iCurRepeatIndex = 0;
   XFA_ATTRIBUTEENUM eParentBindMatch = XFA_ATTRIBUTEENUM_None;
   if (bDataMerge) {
     CXFA_NodeIteratorTemplate<CXFA_Node, CXFA_TraverseStrategy_XFAContainerNode>
         sNodeIterator(pTemplateNode);
     FX_BOOL bAccessedDataDOM = FALSE;
     if (eElement == XFA_ELEMENT_SubformSet || eElement == XFA_ELEMENT_Area) {
       sNodeIterator.MoveToNext();
     } else {
       CFX_MapPtrTemplate<CXFA_Node*, CXFA_Node*> subformMapArray;
-      CXFA_NodeArray subformArray;
+      CXFA_NodeArray nodeArray;
       for (; iMax < 0 || iCurRepeatIndex < iMax; iCurRepeatIndex++) {
         FX_BOOL bSelfMatch = FALSE;
         XFA_ATTRIBUTEENUM eBindMatch = XFA_ATTRIBUTEENUM_None;
         CXFA_Node* pDataNode = XFA_DataMerge_FindMatchingDataNode(
             pDocument, pTemplateNode, pDataScope, bAccessedDataDOM, FALSE,
             &sNodeIterator, bSelfMatch, eBindMatch);
         if (!pDataNode || sNodeIterator.GetCurrent() != pTemplateNode) {
           break;
         }
         eParentBindMatch = eBindMatch;
         CXFA_Node* pSubformNode = XFA_NodeMerge_CloneOrMergeContainer(
             pDocument, pFormParentNode, pTemplateNode, FALSE, pSearchArray);
         if (!pFirstInstance) {
           pFirstInstance = pSubformNode;
         }
         XFA_DataMerge_CreateDataBinding(pSubformNode, pDataNode);
         ASSERT(pSubformNode);
         subformMapArray.SetAt(pSubformNode, pDataNode);
-        subformArray.Add(pSubformNode);
+        nodeArray.Add(pSubformNode);
       }
       subformMapArray.GetStartPosition();
-      for (int32_t iIndex = 0; iIndex < subformArray.GetSize(); iIndex++) {
-        CXFA_Node* pSubform = subformArray[iIndex];
+      for (int32_t iIndex = 0; iIndex < nodeArray.GetSize(); iIndex++) {
+        CXFA_Node* pSubform = nodeArray[iIndex];
         CXFA_Node* pDataNode =
             reinterpret_cast<CXFA_Node*>(subformMapArray.GetValueAt(pSubform));
         for (CXFA_Node* pTemplateChild =
                  pTemplateNode->GetNodeItem(XFA_NODEITEM_FirstChild);
              pTemplateChild; pTemplateChild = pTemplateChild->GetNodeItem(
                                  XFA_NODEITEM_NextSibling)) {
           if (XFA_NeedGenerateForm(pTemplateChild, bUseInstanceManager)) {
             XFA_NodeMerge_CloneOrMergeContainer(pDocument, pSubform,
                                                 pTemplateChild, TRUE);
           } else if (pTemplateChild->GetObjectType() ==
@@ skipping 563 matching lines @@
     }
     pFormRoot->SetObject(XFA_ATTRIBUTE_BindingNode, NULL);
   }
   XFA_DataMerge_ClearGlobalBinding(this);
   if (bDoDataMerge) {
     DoDataMerge();
   }
   CXFA_LayoutProcessor* pLayoutProcessor = GetLayoutProcessor();
   pLayoutProcessor->SetForceReLayout(TRUE);
 }