syntax_data: {"ast_node_type":"other","tokens":[{"end":67,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:                     if self.tcx().is_dyn_compatible(trait_def_id) {
context_before:                 ty::PredicateKind::DynCompatible(trait_def_id) => {
context_after:                         Ok(EvaluatedToOk)