private: static class QString __cdecl QString::fromUtf8_helper(char const *, int)

Mangled name

?fromUtf8_helper@QString@@CA?AV1@PBDH@Z

Exported by

size	filename	version
4115936	Qt5Core_FSC_mod.dll	5.4.2.41
5327960	Qt5Core.dll	5.13.2.0
3864576	Qt5Core.dll	5.1.0.0
4763136	Qt5Core.dll	5.9.1.0
4874240	Qt5Core.dll	5.11.2.0