49     return RecordID.takeError();  in parseRecord()
96     return RecordID.takeError();  in parseRecord()
162     return Next.takeError();  in parseBlock()
178       return Next.takeError();  in parseBlock()
217       return R.takeError();  in parseMagic()
224     return Next.takeError();  in parseBlockInfoBlock()
235     return MaybeBlockInfo.takeError();  in parseBlockInfoBlock()
253     return Next.takeError();  in isBlock()
291     return MagicNumber.takeError();  in advanceToMetaBlock()
299     return isMetaBlock.takeError();  in advanceToMetaBlock()
314     return MagicNumber.takeError();  in createBitstreamParserFromMeta()
529     return RemarkName.takeError();  in processRemark()
539     return PassName.takeError();  in processRemark()
548     return FunctionName.takeError();  in processRemark()
553       return SourceFileName.takeError();  in processRemark()
583       return Key.takeError();  in processRemark()
588       return Value.takeError();  in processRemark()
598         return SourceFileName.takeError();  in processRemark()