syntax_data: {"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":"write!(p,"}]}
source_snippet:                 write!(p, "the trait `")?;
context_before:             ty::PredicateKind::DynCompatible(trait_def_id) => {
context_after:                 p.print_def_path(trait_def_id, &[])?;