Add support for file / overview / fileoverview tag in closurecompiler

[necolas]

As defined in JSDoc:

http://usejsdoc.org/tags-file.html

[qfox]

@necolas Thanks for filing it.

For now closurecompiler set is merge of https://developers.google.com/closure/compiler/docs/js-for-compiler#tags and
https://code.google.com/p/jsdoc-toolkit/wiki/TagReference

On the second page we have @fileOverview tag — that's what you need I think.
And it's in set https://github.com/jscs-dev/jscs-jsdoc/blob/master/lib/tags/closurecompiler.json#L22 — Not the case for jsdoc-toolkit and jsdoc3 are different (jsdoc3 tag set).

I'm still not sure for now that we should add aliases for @fileOverview there.

[necolas]

OK, we'll switch to @fileOverview assuming closurecompiler is cool with it. Thanks

[qfox]

If you using some tool to autogen docs with cc — please try to use other aliases there. It would be very helpful.

[qfox]

@necolas I feel like a bad guy who forced you to use old tag. According to https://code.google.com/p/jsdoc-toolkit/: "...project is no longer..." and it redirects to github account of jsdoc3. So you're right, and I'm wrong. Sorry for that.

Also I'm thinking that better to have sets for different docgen tools like jsdoc3, doxx or yuidoc (if somebody need it). Separated closurecompiler set probably is a good thing, but better to have it inside jsdoc3 (at least extend cc set with jsdoc3).

Am I right?

[necolas]

I don't know about how much closurecompiler and jsdoc3 are related these days, but your plan sounds good to me. Hard to find a list of all the supported closurecompiler tags. For example, various google projects have @suppress and @preserveTry, but they aren't documented in the contemporary closure docs. Easy to add to the extra though.

Thanks for your help with this.