Method ext_move

crates/core/src/error/error.rs:1274–1279

(self, dest: NonNull<u8>)

    }

    unsafe fn ext_move(self, dest: NonNull<u8>) {
        // Safety: implied by this trait method's safety contract.
        unsafe {
            dest.cast::<E>().write(self.0);
        }
    }

    fn ext_is(&self, type_id: TypeId) -> bool {
        // NB: need to check type id of `E`, not `Self` aka