Function convert_binder_to_early_binder

pub fn convert_binder_to_early_binder<'db, T>(
    interner: DbInterner<'db>,
    def: GenericDefId,
    binder: Binder<DbInterner<'db>, T>,
) -> EarlyBinder<DbInterner<'db>, T>
where
    T: TypeFoldable<DbInterner<'db>>,