RFR: Fix merged update refs

[Aleksey Shipilev]

On 05/09/2017 12:21 PM, Roman Kennke wrote:
> I made a little mistake yesterday when I moved flag initialization into
> ShenandoahHeuristic: I forgot to remove the _update_refs_adaptive field
> in AdaptiveHeuristic, and this one overrides the same field in
> ShenandoahHeuristics. Problem is the forgotten field never gets
> initialized and is always false.
> 
> http://cr.openjdk.java.net/~rkennke/fix-merge-uprefs/webrev.00/
> <http://cr.openjdk.java.net/%7Erkennke/fix-merge-uprefs/webrev.00/>
> 
> Ok?

OK.

-Aleksey