328   auto FileIt = Files.find(  in spelledForExpandedToken()
330   assert(FileIt != Files.end() && "no file for an expanded token");  in spelledForExpandedToken()
433   auto It = Files.find(FID);  in spelledTokens()
434   assert(It != Files.end());  in spelledTokens()
470   const MarkedFile &File = Files.find(FID)->second;  in spelledForExpanded()
520   auto FileIt = Files.find(SourceMgr->getFileID(Spelled.front().location()));  in fileForSpelled()
521   assert(FileIt != Files.end() && "file not tracked by token buffer");  in fileForSpelled()
607   auto FileIt = Files.find(FID);  in macroExpansions()
608   assert(FileIt != Files.end() && "file not tracked by token buffer");  in macroExpansions()
784     for (const auto &File : Result.Files)  in build()
788     for (auto &pair : Result.Files) {  in build()
814     const auto &SpelledTokens = Result.Files[File].SpelledTokens;  in discard()
822         Drain ? Result.Files[*Drain].EndExpanded : NextExpanded;  in discard()
828         Result.Files[File].Mappings.push_back(Mapping);  in discard()
860     const auto &SpelledTokens = Result.Files[File].SpelledTokens;  in advance()
894       Result.Files[File].Mappings.push_back(Mapping);  in advance()
918       auto It = Result.Files.try_emplace(FID);  in buildSpelledTokens()
989   for (auto F : Files)  in dumpForTests()
994     const MarkedFile &File = Files.find(ID)->second;  in dumpForTests()