syntax_data: {"ast_node_type":"function","tokens":[{"end":76,"kind":"keyword","start":0,"text":"pub"}]}
source_snippet:     pub fn new_error(tcx: TyCtxt<'tcx>, guar: ErrorGuaranteed) -> Ty<'tcx> {
context_before:     /// Constructs a `TyKind::Error` type with current `ErrorGuaranteed`
context_after:         Ty::new(tcx, Error(guar))