Function complete_symbol_graphs 

fn complete_symbol_graphs<'a>(
    store: &AtlasStore,
    paths: &BTreeSet<String>,
    symbols: &'a SymbolBuildStage,
    sources: &mut SourceBindingCache<'_>,
    control: &IndexWorkControl,
) -> Result<Vec<SourceGraph<'a>>, CliError>

Overlay staged output and recover required unchanged source before ordinal use.