Function format_source_location

perro_source/devtools/perro_cli/src/doctor.rs:223–235

(
    project_dir: &Path,
    source_file: Option<&Path>,
    source_line: Option<usize>,
)

    project_dir: &Path,
    config: &ProjectConfig,
    report: &mut ValidationReport,
) {
    report.checked_refs += 1;
    validate_named_virtual_ref(
        project_dir,
        None,
        None,
        "project.main_scene",
        &config.main_scene,
        true,
        report,
    );
    report.checked_refs += 1;
    validate_named_virtual_ref(
        project_dir,
        None,