{"ast_node_type":"variable","tokens":[{"end":55,"kind":"keyword","start":0,"text":"if"}]}
        if let Some(local_def_id) = def_id.as_local() {
    fn main_fn_diagnostics_def_id(tcx: TyCtxt<'_>, def_id: DefId, sp: Span) -> LocalDefId {
            let hir_type = tcx.type_of(local_def_id).instantiate_identity();