Regression test for issue 24687.

use visible characters for the multibyte character filler.

src/test/run-pass/issue24687-embed-debuginfo.rs

@@ -0,0 +1,21 @@
+// Copyright 2015 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.
+
+// aux-build:issue24687_lib.rs
+
+extern crate issue24687_lib as d;
+
+fn main() {
+    // Create a d, which has a destructor whose body will be trans'ed
+    // into the generated code here, and thus the local debuginfo will
+    // need references into the original source locations from
+    // `importer` above.
+    let _d = d::D("Hi");
+}