RFR: 8209975: Some GCThreadLocalData not initialized

[Per Liden]

On 08/29/2018 09:09 AM, Kim Barrett wrote:
> Please review this completion of the deferred
> BarrierSet::on_thread_create calls for some potential early creation
> threads that previously were being missed.
> 
> CR:
> https://bugs.openjdk.java.net/browse/JDK-8209975
> 
> Webrev:
> http://cr.openjdk.java.net/~kbarrett/8209975/open.00/

Looks good.

/Per

> 
> Testing:
> mach5 tier1-3, hs-tier4-5
> local jtreg:hotspot_gc.
>