Function array_repository_load_packages 

pub fn array_repository_load_packages(
    members: &[usize],
    package_name_map: &[(String, Constraint)],
    acceptable: &BTreeMap<String, i32>,
    flags: &BTreeMap<String, i32>,
    already_loaded: &BTreeMap<String, BTreeSet<String>>,
    arena: &[Package],
) -> (Vec<String>, Vec<usize>)

ArrayRepository::loadPackages (root repository).