Function admit_symbol_graphs_with_limit 

fn admit_symbol_graphs_with_limit<'a>(
    graphs: Vec<impl Into<SourceGraph<'a>>>,
    control: &IndexWorkControl,
    limit: u64,
) -> Result<(Vec<SourceGraph<'a>>, GraphIdentityAdmission), CliError>

Admit parser graphs at one shared boundary before any strict graph object is built.