syntax_data: {"ast_node_type":"other","tokens":[{"end":9,"kind":"keyword","start":0,"text":"}"}]}
source_snippet:         }
context_before:             ty::Const::new_expr(tcx, Expr::new_binop(tcx, op, lhs_ty, rhs_ty, lhs, rhs))
context_after:         &ExprKind::Unary { op, arg } if check_unop(op) => {