{"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"self.check_rustc_allow_const_fn_unstable(hir_id,"}]}
                    self.check_rustc_allow_const_fn_unstable(hir_id, *first_span, span, target)
                Attribute::Parsed(AttributeKind::AllowConstFnUnstable(_, first_span)) => {
                }