cast params for PyObject_IsInstance to suppress warnings
cast params for PyObject_IsInstance to suppress warnings

jdahlin/pygobject,sfeltman/pygobject,pexip/pygobject,davibe/pygobject,davidmalcolm/pygobject,davibe/pygobject,choeger/pygobject-cmake,thiblahute/pygobject,davibe/pygobject,sfeltman/pygobject,sfeltman/pygobject,choeger/pygobject-cmake,choeger/pygobject-cmake,thiblahute/pygobject,thiblahute/pygobject,MathieuDuponchelle/pygobject,davidmalcolm/pygobject,MathieuDuponchelle/pygobject,davidmalcolm/pygobject,pexip/pygobject,davibe/pygobject,pexip/pygobject,GNOME/pygobject,GNOME/pygobject,MathieuDuponchelle/pygobject,jdahlin/pygobject,GNOME/pygobject,jdahlin/pygobject