JDK 9 RFR of JDK-8177313: Move FJExceptionTableLeak.java and ConfigChanges.java back to tier1

[Alan Bateman]

On 21/03/2017 08:09, Amy Lu wrote:
> Below two tests was demoted from tier1 to tier2 due to test fails 
> intermittently:
>
> java/util/concurrent/forkjoin/FJExceptionTableLeak.java
>      JDK-8144990, JDK-8151158
> java/util/concurrent/ThreadPoolExecutor/ConfigChanges.java
>     JDK-8139237, JDK-8169243
>
> Mentioned issues have been resolved and no open bug (no failure 
> reported) till now.
>
> This patch is to move them back to tier1.
Looks fine.