I considered both Go and Dart for my new web projects - but as a former C# dev I'm too lazy to live without IDE (debugger intellisense etc) and ended up with Dart. Would love to see more tooling for Go to make it appealing for 'VisualStudio like devs'
Checkout LiteIDE: https://github.com/visualfc/liteide
Binary downloads http://sourceforge.net/projects/liteide/files