{"ast_node_type":"variable","tokens":[{"end":70,"kind":"keyword","start":0,"text":"if"}]}
    if let ItemInNs::Types(ModuleDefId::BuiltinType(builtin)) = item {
    // - if the item is a builtin, it's in scope
        return Some(ModPath::from_segments(PathKind::Plain, iter::once(builtin.as_name())));