{"ast_node_type":"other","tokens":[{"end":66,"kind":"keyword","start":0,"text":"ast::LetExpr(it)"}]}
                ast::LetExpr(it) => validate_let_expr(it, errors),
                ast::MacroRules(it) => validate_macro_rules(it, errors),
                ast::DynTraitType(it) => errors.extend(validate_trait_object_ty(it)),