syntax_data: {"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"ty::PredicateKind::DynCompatible(trait_def_id)"}]}
source_snippet:             ty::PredicateKind::DynCompatible(trait_def_id) => {
context_before:             ty::PredicateKind::Coerce(predicate) => predicate.print(p)?,
context_after:                 write!(p, "the trait `")?;