Sorry we don't have any direct support for the Gold parser. We do for ANTLR, Irony, 'M' Language Defintions, or our own LL(*) Parser Framework though.
That being said, it's very easy to integrate any third-party parser with our product. All you have to do is implement the IParser interface and "wrap" your Gold parser. Then register your IParser object as a service on your syntax language and you'll be good to go. If you have an ambient parse request dispatcher set up, the parsing will even occur in a worker thread.