Function sidebar_deref_methods

fn sidebar_deref_methods<'a>(
    cx: &'a Context<'_>,
    out: &mut Vec<LinkBlock<'a>>,
    impl_: &Impl,
    v: &[Impl],
    derefs: &mut DefIdSet,
    used_links: &mut FxHashSet<String>,
    deref_id_map: &'a DefIdMap<String>,
)