Add improved JSDoc support for @returns

[bgriffith]

This PR adds improved support for JSDoc highlighting of @return and @returns. Currently the first word of a description will incorrectly take on the scope of a variable (an element that the @returns doesn't have http://usejsdoc.org/tags-returns.html)

Before:

After:

Also took the opportunity to tidy up the JSDoc code a bit.

[winstliu]

Also took the opportunity to tidy up the JSDoc code a bit.

😍

[TheDutchCoder]

I'm using 0.119.0 on Mac OS and this is still an issue for me:

[Alhadis]

Ask @bgriffith to come back from the future and explain:

5 hours from now

Also, you ARE running a dev-linked copy of the latest changes, right?

[winstliu]

@TheDutchCoder this fix is not yet in any released version of Atom or even language-javascript. As @Alhadis mentioned however, you can apm link it.

[bgriffith]

@Alhadis Oh man wut?!! Wonder how long I've been in the future! Thanks for the heads up 😁

[Alhadis]

It's funny, because I'm actually the one in the future (compared to your timezone).

Lel.