syntax_data: {"ast_node_type":"other","tokens":[{"end":90,"kind":"keyword","start":0,"text":"ty::ExistentialPredicate::AutoTrait(def_id)"}]}
source_snippet:             ty::ExistentialPredicate::AutoTrait(def_id) => p.print_def_path(def_id, &[])?,
context_before:             ty::ExistentialPredicate::Projection(x) => x.print(p)?,
context_after:         }