private: class QState const * __thiscall QStatePrivate::q_func(void)const

Mangled name

?q_func@QStatePrivate@@ABEPBVQState@@XZ

Exported by

size	filename	version
5327960	Qt5Core.dll	5.13.2.0
4763136	Qt5Core.dll	5.9.1.0
4874240	Qt5Core.dll	5.11.2.0