[8u] RFR: 8078450: Implement consistent process for quarantine of tests

[Severin Gehwolf]

Hi,

Please review this test-only patch which introduces a ProblemList.txt
for the hotspot tests to 8u. My goal with this would be to problem list
rtm tests in hotspot to get a cleaner tier1 run. The original patch
doesn't apply as it was done in JDK 9 with a different set of tests
(where @ignore keyword is removed) and because the test setup is
slightly differnt in OpenJDK 8u.

Bug: https://bugs.openjdk.java.net/browse/JDK-8078450
webrev: http://cr.openjdk.java.net/~sgehwolf/webrevs/JDK-8078450/jdk8/01/webrev/
original change: http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/1b0d8f3d0bb3

Testing: make test TEST="hotspot_tier1" before and after. No difference.

Thoughts?

Thanks,
Severin