slick: Correct invalid selectors in various SlickSpec specs. [jddalton]

[jdalton]

No description provided.

[subtleGradient]

There's some good stuff in here.
I don't want to just comment out a bunch of stuff though.
Let's either remove them or not.

As far as invalid selectors go, many engines are intentionally lenient about that stuff.
How would you recommend including tests for selectors that are not W3C valid?

[jdalton]

I would make a separate spec file for them, maybe a custom spec. As a side note on leniency, the correct valid selectors should be promoted as they will work on the QSA fork without having to fallback to the manual dom iteration fork of engines.

[SergioCrisostomo]

@jdalton why did you close this? (something else than the "age" factor?)

[jdalton]

Just pruning dead PRs (those that have been open several years).

[SergioCrisostomo]

@jdalton well I can't blame you... but if they are good ideas would be better to have them open.
I was actually checking the specs last week and was thinking of putting them on travis like Fabio once suggested. Core has no Slick specs, so we still need this.

Cheers