syntax_data: {"ast_node_type":"other","tokens":[{"end":61,"kind":"keyword","start":0,"text":"cache_fresh_trait_pred:"}]}
source_snippet:         cache_fresh_trait_pred: ty::PolyTraitPredicate<'tcx>,
context_before:         param_env: ty::ParamEnv<'tcx>,
context_after:     ) -> Option<SelectionResult<'tcx, SelectionCandidate<'tcx>>> {