Fix Wvarargs warning in XFA error code.

xfa/fxfa/fm2js/xfa_fmparse.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/fm2js/xfa_fmparse.h"
 
 #include <memory>
 
@@ skipping 18 matching lines @@
 
 void CXFA_FMParse::Check(XFA_FM_TOKEN op) {
   if (m_pToken->m_type != op) {
     CFX_WideString ws_TempString = m_pToken->m_wstring;
     Error(m_pToken->m_uLinenum, FMERR_EXPECTED_TOKEN,
           XFA_FM_KeywordToString(op), ws_TempString.c_str());
   }
   NextToken();
 }
 
-void CXFA_FMParse::Error(uint32_t lineNum, XFA_FM_ERRMSG msg, ...) {
+void CXFA_FMParse::Error(uint32_t lineNum, const FX_WCHAR* msg, ...) {
   m_pErrorInfo->linenum = lineNum;
-  const FX_WCHAR* lpMessageInfo = XFA_FM_ErrorMsg(msg);
   va_list ap;
   va_start(ap, msg);
-  m_pErrorInfo->message.FormatV(lpMessageInfo, ap);
+  m_pErrorInfo->message.FormatV(msg, ap);
   va_end(ap);
 }
 
 CFX_PtrArray* CXFA_FMParse::ParseTopExpression() {
   std::unique_ptr<CXFA_FMExpression> e;
   CFX_PtrArray* expression = new CFX_PtrArray();
   while (1) {
     if (m_pToken->m_type == TOKeof || m_pToken->m_type == TOKendfunc ||
         m_pToken->m_type == TOKendif || m_pToken->m_type == TOKelseif ||
         m_pToken->m_type == TOKelse || m_pToken->m_type == TOKreserver) {
@@ skipping 987 matching lines @@
   NextToken();
   e.reset(ParseBlockExpression());
   Check(TOKend);
   if (m_pErrorInfo->message.IsEmpty()) {
     e.reset(new CXFA_FMDoExpression(line, e.release()));
   } else {
     e.reset();
   }
   return e.release();
 }