[13] RFR JDK-8222097: ProblemList tests that are failing recurringly and intermittently in PIT

[Prasanta Sadhukhan]

Hi All,

Please review an addition of some tests in ProblemList that fails 
recurringly and some intermittently in PIT.

Bug: https://bugs.openjdk.java.net/browse/JDK-8222097
webrev: http://cr.openjdk.java.net/~psadhukhan/8222097/webrev.0/

Regards
Prasanta