message: Use DWARFBaseDie in accordance with r333224
diff: @@ -2957,7 +2957,7 @@ bool SymbolFileDWARF::GetCompileOption(const char *option, std::string &value,
  DWARFUnit *dwarf_cu = GetDWARFCompileUnit(cu);
  if (dwarf_cu) {
  - const DWARFDIE die = dwarf_cu->GetUnitDIEOnly();
  + const DWARFBaseDIE die = dwarf_cu->GetUnitDIEOnly();
  if (die) {
  const char *flags =
  die.GetAttributeValueAsString(DW_AT_APPLE_flags, NULL);
  @@ -2976,7 +2976,7 @@ bool SymbolFileDWARF::GetCompileOption(const char *option, std::string &value,
  DWARFUnit *dwarf_cu = debug_info->GetCompileUnitAtIndex(cu_idx);
  if (dwarf_cu) {
  - const DWARFDIE die = dwarf_cu->GetUnitDIEOnly();
  + const DWARFBaseDIE die = dwarf_cu->GetUnitDIEOnly();
  if (die) {
  const char *flags =
  die.GetAttributeValueAsString(DW_AT_APPLE_flags, NULL);
  @@ -3007,7 +3007,7 @@ int SymbolFileDWARF::GetCompileOptions(const char *option,
  DWARFUnit *dwarf_cu = GetDWARFCompileUnit(cu);
  if (dwarf_cu) {
  - const DWARFDIE die = dwarf_cu->GetUnitDIEOnly();
  + const DWARFBaseDIE die = dwarf_cu->GetUnitDIEOnly();
  if (die) {
  const char *flags =
  die.GetAttributeValueAsString(DW_AT_APPLE_flags, NULL);
  @@ -3028,7 +3028,7 @@ int SymbolFileDWARF::GetCompileOptions(const char *option,
  DWARFUnit *dwarf_cu = debug_info->GetCompileUnitAtIndex(cu_idx);
  if (dwarf_cu) {
  - const DWARFDIE die = dwarf_cu->GetUnitDIEOnly();
  + const DWARFBaseDIE die = dwarf_cu->GetUnitDIEOnly();
  if (die) {
  const char *flags =
  die.GetAttributeValueAsString(DW_AT_APPLE_flags, NULL);
  