syntax_data: {"ast_node_type":"other","tokens":[{"end":56,"kind":"keyword","start":0,"text":"ty::ClauseKind::ConstEvaluatable(c),"}]}
source_snippet:                     ty::ClauseKind::ConstEvaluatable(c),
context_before:                 let predicate = ty::Binder::dummy(ty::PredicateKind::Clause(
context_after:                 ));