DwarfDebug.cpp

  assert(useSplitDwarf() && "No split dwarf?");
  const MCSection *OffSec = Asm->getObjFileLowering()
                            .getDwarfStrOffDWOSection();
  const MCSymbol *StrSym = DwarfStrSectionSym;
  InfoHolder.emitStrings(Asm->getObjFileLowering().getDwarfStrDWOSection(),
                         OffSec, StrSym);
}