RFR: Cherry-pick: JDK-8221278: Shenandoah should not enqueue string dedup candidates during root scan

[Aleksey Shipilev]

On 3/22/19 8:49 AM, Roman Kennke wrote:
> 
> We need this in sh/jdk asap to get stable tests:
> 
> http://cr.openjdk.java.net/~rkennke/JDK-8221278/webrev.00/
> 
> Ok?

OK

-Aleksey