Function build_module_items 

fn build_module_items(
    cx: &mut DocContext<'_>,
    module_def_id: DefId,
    module_name: Symbol,
    visited: &mut DefIdSet,
    inlined_names: &mut FxHashSet<(ItemType, Symbol)>,
    allowed_def_ids: Option<&DefIdSet>,
    attrs: Option<(&[Attribute], Option<LocalDefId>)>,
) -> Vec<Item>