syntax_data: {"ast_node_type":"function","tokens":[{"end":92,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet:     fn from_cycle_error(_tcx: TyCtxt<'tcx>, _: &CycleError, guar: ErrorGuaranteed) -> Self {
context_before: impl<'tcx> Value<TyCtxt<'tcx>> for Result<ty::EarlyBinder<'_, Ty<'_>>, CyclePlaceholder> {
context_after:         Err(CyclePlaceholder(guar))