Fixed in commit f5c58c88029648b608d75cdb06d82b06f0d30953. I actually doubt Mozilla is tweaking the patch more. In fact, curiously, Firefox is not even using it as the necko people and others got their pitchforks out and argued they needed that feature for debugging purposes even in optimized, non-debug builds. But in NSS it is still there.
Trac: Resolution: N/Ato fixed Status: needs_review to closed
Fixed in commit f5c58c88029648b608d75cdb06d82b06f0d30953. I actually doubt Mozilla is tweaking the patch more. In fact, curiously, Firefox is not even using it as the necko people and others got their pitchforks out and argued they needed that feature for debugging purposes even in optimized, non-debug builds. But in NSS it is still there.
Interesting. I guess I did not read the Bugzilla bug carefully and thought the fix was still pending on the NSS side (I think I saw https://bugzilla.mozilla.org/show_bug.cgi?id=1183318#c35 while reading in newest-to-oldest comment order and missed the fact that the status is RESOLVED FIXED). So never mind.