diff -r 000000000000 -r 6474c204b198 browser/devtools/debugger/test/code_location-changes.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/debugger/test/code_location-changes.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,7 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function myFunction() {
+  var a = 1;
+  debugger;
+}