added xfailed test for issue 9737

src/test/run-pass/issue-9737.rs

+// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// ignore-test #9737
+
+#![feature(macro_rules)]
+
+macro_rules! f((v: $x:expr) => ( println!("{:?}", $x) ))
+
+fn main () {
+    let v = 5;
+    f!(v: 3);
+}