[Graal upstream] 8201318: Introduce GCThreadLocalData to abstract GC-specific data belonging to a thread

[dean.long at oracle.com]

I'll take care of it.

dl

On 4/18/18 11:27 PM, Per Liden wrote:
> Requesting upstreaming of the parts of JDK-8201318 that touched Graal 
> files.
>
> Original bug: https://bugs.openjdk.java.net/browse/JDK-8201318
> Final webrev: http://cr.openjdk.java.net/~pliden/8201318/webrev.2/
> Commit: http://hg.openjdk.java.net/jdk/hs/rev/93d84f667d12
>
> Thanks!
> /Per