RFR: 8210119: Rename SubTasksDone::is_task_claimed

[Stefan Johansson]

On 2018-08-29 02:55, Kim Barrett wrote:
> [Sending to hotspot-dev because, though this is a GC utility, it's also
> being used in runtime/safepoint.cpp.]
> 
> Please review this small API naming cleanup.
> 
> CR:
> https://bugs.openjdk.java.net/browse/JDK-8210119
> 
> Webrev:
> http://cr.openjdk.java.net/~kbarrett/8210119/open.00/
Nice cleanup, looks good.

Cheers,
StefanJ

> 
> Testing:
> mach5 tier1-3
>