RFR (Trivial): Fix the leak of _evacuation_tasks

[Zhengyu Gu]

On 11/01/2018 12:50 PM, Aleksey Shipilev wrote:
> On 11/01/2018 05:47 PM, Zhengyu Gu wrote:
>> Leak _evacuation_tasks in ShenandoahRootEvacuator.
>>
>> Webrev: http://cr.openjdk.java.net/~zgu/shenandoah/leak_evac_tasks/webrev.00/
> 
> Looks good. Maybe you want to put the delete first thing to make it symmetrical with
> ShenandoahRootProcessor::~ShenandoahRootProcessor().
Will do before push.

Thanks,

-Zhengyu

> 
> -Aleksey
>