diff -r 000000000000 -r 6474c204b198 toolkit/crashreporter/test/unit/crasher_subprocess_tail.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/crashreporter/test/unit/crasher_subprocess_tail.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,2 @@
+// now actually crash
+CrashTestUtils.crash(crashType);