They acutally demoed Go debugging in the Connect conference keynote today [1], together with the open-source announcement. It has been implemented as part of an extension written by someone inside of Microsoft, if I remember correctly (support for extensions was also announced).<p>[1] <a href="https:&#x2F;&#x2F;channel9.msdn.com&#x2F;Events&#x2F;Visual-Studio&#x2F;Connect-event-2015&#x2F;010" rel="nofollow">https:&#x2F;&#x2F;channel9.msdn.com&#x2F;Events&#x2F;Visual-Studio&#x2F;Connect-event...</a>