Subzero: Use C++11 member initializers where practical.

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 46 matching lines @@
 uint32_t getELFFlags(TargetArch Arch) {
   if (Arch < TargetArch_NUM)
     return ELFTargetInfo[Arch].ELFFlags;
   llvm_unreachable("Invalid target arch for getELFFlags");
   return 0;
 }
 
 } // end of anonymous namespace
 
 ELFObjectWriter::ELFObjectWriter(GlobalContext &Ctx, ELFStreamer &Out)
-    : Ctx(Ctx), Str(Out), SectionNumbersAssigned(false),
-      ELF64(isELF64(Ctx.getFlags().getTargetArch())) {
+    : Ctx(Ctx), Str(Out), ELF64(isELF64(Ctx.getFlags().getTargetArch())) {
   // Create the special bookkeeping sections now.
   const IceString NullSectionName("");
   NullSection = new (Ctx.allocate<ELFSection>())
       ELFSection(NullSectionName, SHT_NULL, 0, 0, 0);
 
   const IceString ShStrTabName(".shstrtab");
   ShStrTab = new (Ctx.allocate<ELFStringTableSection>())
       ELFStringTableSection(ShStrTabName, SHT_STRTAB, 0, 1, 0);
   ShStrTab->add(ShStrTabName);
 
@@ skipping 539 matching lines @@
   if (ELF64) {
     writeELFHeaderInternal<true>(ShOffset, ShStrTab->getNumber(),
                                  AllSections.size());
   } else {
     writeELFHeaderInternal<false>(ShOffset, ShStrTab->getNumber(),
                                   AllSections.size());
   }
 }
 
 } // end of namespace Ice