Remove unsafe interface requirement for into ptr conversion#1666

sdroege merged 1 commit intogtk-rs:maingtk-rs/gtk-rs-core:mainfrom

BiagioFesta:wip/bfesta/remove-unsafe-to-ptrBiagioFesta/gtk-rs-core:wip/bfesta/remove-unsafe-to-ptrCopy head branch name to clipboard