fsharp/fsharpbinding — pull request #508 by 7sharp9 (2014-04-28 17:19:52+00:00)
Title: Change goto declaration to goto the code declaration rather than the signature file

Ideally we would toggle between the two but there is an issue in FCS
where if you are in a signature file there is no way to get the
definition file. See https://github.com/fsharp/FSharp.Compiler.Service/issues/134