syntax_data: {"ast_node_type":"other","tokens":[{"end":47,"kind":"keyword","start":0,"text":"ty::ConstKind::Unevaluated(ct)"}]}
source_snippet:             ty::ConstKind::Unevaluated(ct) => {
context_before:             ty::ConstKind::Expr(expr) => stack.extend(expr.args().iter().rev()),
context_after:                 stack.extend(ct.args.iter().rev());