From 974f1eff58d01ce0bb5583adf0066a84d8eed812 Mon Sep 17 00:00:00 2001
From: Jeffrey Seyfried <jeffrey.seyfried@gmail.com>
Date: Thu, 14 Apr 2016 01:20:22 +0000
Subject: [PATCH] Add test for issue #31856

---
 src/test/compile-fail/issue-32922.rs | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/test/compile-fail/issue-32922.rs b/src/test/compile-fail/issue-32922.rs
index fdf5cbfd3c4..4206b16a419 100644
--- a/src/test/compile-fail/issue-32922.rs
+++ b/src/test/compile-fail/issue-32922.rs
@@ -9,6 +9,7 @@
 // except according to those terms.
 
 #![feature(rustc_attrs)]
+#![allow(warnings)]
 
 macro_rules! foo { () => {
     let x = 1;
@@ -16,5 +17,15 @@ macro_rules! foo { () => {
     let _ = bar!();
 }}
 
+macro_rules! bar { // test issue #31856
+    ($n:ident) => (
+        let a = 1;
+        let $n = a;
+    )
+}
+
 #[rustc_error]
-fn main() { foo! {}; } //~ ERROR compilation successful
+fn main() { //~ ERROR compilation successful
+    foo! {};
+    bar! {};
+}