RFR: ShenandoahControlThread should not get GCLABs

[Aleksey Shipilev]

On 08/31/2018 04:27 PM, Roman Kennke wrote:
> Very good. Patch seems ok.
> 
> It will prevent the StringDedupThread from getting a GCLAB. Would that
> be an issue?

Yes, new RFR would deprive StringDedupThread from having a GCLAB. Which, I think, deserves a
follow-up: why do we need to evacuate anything there (and in precleaning too?)

-Aleksey