Try to fix mismatch between writeELFHeaderInternal def and decl.

src/IceELFObjectWriter.cpp

 //===- subzero/src/IceELFObjectWriter.cpp - ELF object file writer --------===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file defines the writer for ELF relocatable object files.
@@ skipping 215 matching lines @@
 void ELFObjectWriter::writeDataInitializer(const IceString &VarName,
                                            const llvm::StringRef Data) {
   assert(!SectionNumbersAssigned);
   (void)Data;
   llvm_unreachable("TODO");
   StrTab->add(VarName);
 }
 
 void ELFObjectWriter::writeInitialELFHeader() {
   assert(!SectionNumbersAssigned);
-  const size_t DummySHOffset = 0;
+  const Elf64_Off DummySHOffset = 0;
   const SizeT DummySHStrIndex = 0;
   const SizeT DummyNumSections = 0;
   if (isELF64(Ctx.getTargetArch())) {
     writeELFHeaderInternal<true>(DummySHOffset, DummySHStrIndex,
                                  DummyNumSections);
   } else {
     writeELFHeaderInternal<false>(DummySHOffset, DummySHStrIndex,
                                   DummyNumSections);
   }
 }
 
 template <bool IsELF64>
-void ELFObjectWriter::writeELFHeaderInternal(size_t SectionHeaderOffset,
+void ELFObjectWriter::writeELFHeaderInternal(Elf64_Off SectionHeaderOffset,
                                              SizeT SectHeaderStrIndex,
                                              SizeT NumSections) {
   // Write the e_ident: magic number, class, etc.
   // The e_ident is byte order and ELF class independent.
   Str.writeBytes(llvm::StringRef(ElfMagic, strlen(ElfMagic)));
   Str.write8(IsELF64 ? ELFCLASS64 : ELFCLASS32);
   Str.write8(ELFDATA2LSB);
   Str.write8(EV_CURRENT);
   Str.write8(ELFOSABI_NONE);
   const uint8_t ELF_ABIVersion = 0;
@@ skipping 78 matching lines @@
   if (IsELF64) {
     writeELFHeaderInternal<true>(ShOffset, ShStrTab->getNumber(),
                                  AllSections.size());
   } else {
     writeELFHeaderInternal<false>(ShOffset, ShStrTab->getNumber(),
                                   AllSections.size());
   }
 }
 
 } // end of namespace Ice