RFR(T) : 8244141 : use @requires and SkippedException in some hotspot/runtime tests

[Igor Ignatyev]

http://cr.openjdk.java.net/~iignatyev//8244141/webrev.00
> 82 lines changed: 15 ins; 31 del; 36 mod; 


Hi all,

could you please review this trivial patch for runtime tests?
from JBS:
> some hotspot/runtime tests use custom logic to skip execution when run on certain platforms and/or in configurations, more modern way to do it is to use @requires or SkippedException.

JBS: https://bugs.openjdk.java.net/browse/JDK-8244141
webrev: http://cr.openjdk.java.net/~iignatyev//8244141/webrev.00
testing: the changed tests

Thanks,
-- Igor