Snippets for polyphone 2.5.1 from Nix x86_64-linux

Sourced from https://hydra.nixos.org/log/g2cn8kchnzbcvjcgvniw3bz0jk7zq824-polyphone-2.5.1.drv.

• lib/_option_rtaudio/rtaudio/RtAudio.cpp:77:15: warning: 'template<class _Codecvt, class _Elem, class _Wide_alloc, class _Byte_alloc> class std::__cxx11::wstring_convert' is deprecated [-Wdeprecated-declarations]
     77 |   return std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>>{}.to_bytes(text);
        |               ^~~~~~~~~~~~~~~
  

• editor/tools/external_command/toolexternalcommand.cpp:98:19: warning: ignoring return value of 'bool QTemporaryFile::open()', declared with attribute 'nodiscard' [-Wunused-result]
     98 |     tempFile->open();
        |     ~~~~~~~~~~~~~~^~
  

• repository/downloadmanager.cpp:136:18: warning: ignoring return value of 'virtual bool QFile::open(QIODeviceBase::OpenMode)', declared with attribute 'nodiscard' [-Wunused-result]
    136 |         file.open(QIODevice::WriteOnly);
        |         ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
  

• core/input/sfark/sfarkextractor2.cpp:1252:33: warning: 'Gen1' may be used uninitialized [-Wmaybe-uninitialized]
   1252 |         r = - (LPN) ((XPN)Gen1[0] / (XPN)error);
        |                           ~~~~~~^