syntax_data: {"ast_node_type":"other","tokens":[{"end":68,"kind":"keyword","start":0,"text":"TraitObligationStackList"}]}
source_snippet:         TraitObligationStackList { cache: r.cache(), head: Some(r) }
context_before:     fn with(r: &'o TraitObligationStack<'o, 'tcx>) -> TraitObligationStackList<'o, 'tcx> {
context_after:     }