RFR(S) : 8078450 : Implement consistent process for quarantine of tests

[Igor Ignatyev]

http://cr.openjdk.java.net/~iignatyev/8078450/webrev.00/
> 115 lines changed: 97 ins; 17 del; 1 mod;

Hi all,

could you please review this small changeset which introduces ProblemList for quarantining hotspot test and adds all currently quarantined tests to it?

a bit of background:
there are two cases when one wants to remove a test from test execution:
 - a test sporadically fails, but there is still a value in running this test, e.g. it can fail in some other way and reveal another problem within the product. we want to run such tests, but we don’t want to have noise from these tests. to get both, we are going to _quarantine_ these tests and run them separately.
 - a test always fails or can break other tests or host. running such tests makes more harm than good, so they should be _excluded_ from test execution completely.
jtreg provides two exclusion mechanisms: @ignore tag and ProblemList. ProblemList gives a possibility to remove a test from execution on a specific OS, arch, and since the expectation is to have more quarantined tests than excluded, it was decided to use ProblemList to quarantine and @ignore to exclude, another reason is to have consistent process for hotspot and jdk tests.

in two words, @ignore to exclude, ProblemList to quarantine.

webrev: http://cr.openjdk.java.net/~iignatyev/8078450/webrev.00/
jbs: https://bugs.openjdk.java.net/browse/JDK-8078450

Thanks,
— Igor