Fix existing test

src/test/ui/issue-2354.rs

@@ -0,0 +1,26 @@
+// 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.
+
+// compile-flags: -Z parse-only
+
+fn foo() { //~ NOTE un-closed delimiter
+  match Some(x) {
+  //~^ NOTE this might be the culprit...
+      Some(y) => { panic!(); }
+      None => { panic!(); }
+}
+//~^ NOTE ...as it matches this but it has different indentation
+
+fn bar() {
+    let mut i = 0;
+    while (i < 1000) {}
+}
+
+fn main() {} //~ ERROR this file contains an un-closed delimiter

src/test/ui/issue-2354.stderr

@@ -0,0 +1,16 @@
+error: this file contains an un-closed delimiter
+  --> $DIR/issue-2354.rs:26:66
+   |
+LL | fn foo() { //~ NOTE un-closed delimiter
+   |          - un-closed delimiter
+LL |   match Some(x) {
+   |                 - this might be the culprit...
+...
+LL | }
+   | - ...as it matches this but it has different indentation
+...
+LL | fn main() {} //~ ERROR this file contains an un-closed delimiter
+   |                                                                  ^
+
+error: aborting due to previous error
+