RFR Fix TestFullGCALot test failure

[Roman Kennke]

Am 01.06.2018 um 23:37 schrieb Zhengyu Gu:
> This change is likely only for fixing this test failure, assume we
> eventually want to pass all jtreg tests at some point.
> 
> Webrev: http://cr.openjdk.java.net/~zgu/shenandoah/full_gc_alot/webrev.00/
> 
> 
> Test:
> 
>   tier3_gc_shenandoah.
> 
> Thanks,
> 
> -Zhengyu

Why are you removing gc/logging/TestUnifiedLoggingSwitchStress.java ? Is
it not related to Shenandoah?

-  serviceability/sa/TestHeapDumpForInvokeDynamic.java \
-  gc/logging/TestUnifiedLoggingSwitchStress.java
+  serviceability/sa/TestHeapDumpForInvokeDynamic.java

Other than that, ok