Come on... Sigh...
Yes, that's absolutely fake. The code posted there is just Gateway's Javascript code.
Look here:
https://github.com/shinyquagsire23/GW-Unlaunch/blob/master/payload_wrong_user_index.html
Here:
https://github.com/Infinest/InfinestClient/blob/master/exp.html
And in the comments here:
http://smealum.net/?p=517
It's the same bug we have been using in wiiu-userspace.
Yifan Lu briefly explained it during his Gateway Ultra research: http://yifan.lu/2015/01/10/reversing-gateway-ultra-first-stage-part-1/
And this is the original Google Code issue: https://code.google.com/p/chromium/issues/detail?id=226696
Nothing in those pastes is true and, I may just be paranoid, but that wording strongly resembles the posts of a certain "fatal error".