The question wasn`t if this features are good or not. Sure them are, most professional programmers / software studios are using ide`s with similar features because of an obvious reason - if you like them, them are useful.
Also collection feedback about the build in editor is a good idea, but I think this is the wrong topic name to get attention on that.
I think this question is solved. There is no alternative script editor and no external compiler/interpreter. The last open question for me is, why a new language just for a irc client...
Thanks again for the most pointless answer. Tell people to search, whatever the question is. This is not the point of a forum. At least there is nothing to find to answer that question on google.