RFR(T): 8230327: Make G1DirtyCardQueueSet free-id init unconditional

[Stefan Johansson]

Hi Kim,

On 2019-08-29 02:27, Kim Barrett wrote:
> Please review this trivial cleanup of G1DirtyCardQueueSet
> initialization. With the separation of G1RedirtyCardsQueueSet from
> G1DirtyCardQueueSet, the latter is now a singleton class that should
> always have an associated G1FreeIdSet.  We can now unconditionally
> construct that object when constructing the DCQS.
> 
> CR:
> https://bugs.openjdk.java.net/browse/JDK-8230327
> 
> Webrev:
> http://cr.openjdk.java.net/~kbarrett/8230327/open.00/
Looks good.

Cheers,
Stefan

> 
> Testing:
> Local (linux-x64) hotspot:tier1.
>