pub fn needs_from_diff(
all_fragments: &[Fragment],
core_ids: &FxHashSet<FragmentId>,
diff_text: &str,
) -> Vec<InformationNeed>pub fn needs_from_diff(
all_fragments: &[Fragment],
core_ids: &FxHashSet<FragmentId>,
diff_text: &str,
) -> Vec<InformationNeed>