45 static void warn(Twine Message, std::string Whence = "",  in warn()  argument
48   if (!Whence.empty())  in warn()
49     errs() << Whence << ": ";  in warn()
55 static void exitWithError(Twine Message, std::string Whence = "",  in exitWithError()  argument
58   if (!Whence.empty())  in exitWithError()
59     errs() << Whence << ": ";  in exitWithError()
66 static void exitWithError(Error E, StringRef Whence = "") {  in exitWithError()  argument
75       exitWithError(IPE.message(), Whence, Hint);  in exitWithError()
79   exitWithError(toString(std::move(E)), Whence);  in exitWithError()
82 static void exitWithErrorCode(std::error_code EC, StringRef Whence = "") {  in exitWithErrorCode()  argument
83   exitWithError(EC.message(), Whence);  in exitWithErrorCode()