Fix all the code which has duplicate variable declarations

core/fpdfapi/fpdf_parser/cpdf_syntax_parser.cpp

 // Copyright 2016 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 "core/fpdfapi/fpdf_parser/cpdf_syntax_parser.h"
 
 #include <vector>
 
@@ skipping 363 matching lines @@
 }
 
 CPDF_Object* CPDF_SyntaxParser::GetObject(CPDF_IndirectObjectHolder* pObjList,
                                           uint32_t objnum,
                                           uint32_t gennum,
                                           FX_BOOL bDecrypt) {
   CFX_AutoRestorer<int> restorer(&s_CurrentRecursionDepth);
   if (++s_CurrentRecursionDepth > kParserMaxRecursionDepth)
     return nullptr;
 
-  FX_FILESIZE SavedPos = m_Pos;
+  FX_FILESIZE SavedObjPos = m_Pos;
   bool bIsNumber;
   CFX_ByteString word = GetNextWord(&bIsNumber);
   if (word.GetLength() == 0)
     return nullptr;
 
   if (bIsNumber) {
     FX_FILESIZE SavedPos = m_Pos;
     CFX_ByteString nextword = GetNextWord(&bIsNumber);
     if (bIsNumber) {
       CFX_ByteString nextword2 = GetNextWord(nullptr);
-      if (nextword2 == "R") {
-        uint32_t objnum = FXSYS_atoui(word.c_str());
-        return new CPDF_Reference(pObjList, objnum);
-      }
+      if (nextword2 == "R")
+        return new CPDF_Reference(pObjList, FXSYS_atoui(word.c_str()));
     }
     m_Pos = SavedPos;
     return new CPDF_Number(word.AsStringC());
   }
 
   if (word == "true" || word == "false")
     return new CPDF_Boolean(word == "true");
 
   if (word == "null")
     return new CPDF_Null;
@@ skipping 76 matching lines @@
     FX_FILESIZE SavedPos = m_Pos;
     CFX_ByteString nextword = GetNextWord(nullptr);
     if (nextword != "stream") {
       m_Pos = SavedPos;
       return pDict.release();
     }
     return ReadStream(pDict.release(), objnum, gennum);
   }
 
   if (word == ">>")
-    m_Pos = SavedPos;
+    m_Pos = SavedObjPos;
 
   return nullptr;
 }
 
 CPDF_Object* CPDF_SyntaxParser::GetObjectByStrict(
     CPDF_IndirectObjectHolder* pObjList,
     uint32_t objnum,
     uint32_t gennum) {
   CFX_AutoRestorer<int> restorer(&s_CurrentRecursionDepth);
   if (++s_CurrentRecursionDepth > kParserMaxRecursionDepth)
     return nullptr;
 
-  FX_FILESIZE SavedPos = m_Pos;
+  FX_FILESIZE SavedObjPos = m_Pos;
   bool bIsNumber;
   CFX_ByteString word = GetNextWord(&bIsNumber);
   if (word.GetLength() == 0)
     return nullptr;
 
   if (bIsNumber) {
     FX_FILESIZE SavedPos = m_Pos;
     CFX_ByteString nextword = GetNextWord(&bIsNumber);
     if (bIsNumber) {
       CFX_ByteString nextword2 = GetNextWord(nullptr);
@@ skipping 79 matching lines @@
     CFX_ByteString nextword = GetNextWord(nullptr);
     if (nextword != "stream") {
       m_Pos = SavedPos;
       return pDict.release();
     }
 
     return ReadStream(pDict.release(), objnum, gennum);
   }
 
   if (word == ">>")
-    m_Pos = SavedPos;
+    m_Pos = SavedObjPos;
 
   return nullptr;
 }
 
 unsigned int CPDF_SyntaxParser::ReadEOLMarkers(FX_FILESIZE pos) {
   unsigned char byte1 = 0;
   unsigned char byte2 = 0;
 
   GetCharAt(pos, byte1);
   GetCharAt(pos + 1, byte2);
@@ skipping 363 matching lines @@
     if (limit && m_Pos == limit)
       return -1;
   }
   return -1;
 }
 
 void CPDF_SyntaxParser::SetEncrypt(
     std::unique_ptr<CPDF_CryptoHandler> pCryptoHandler) {
   m_pCryptoHandler = std::move(pCryptoHandler);
 }