RFR: JDK-8210592: Convert CDS-mode test sets in tier5 and tier6 to non-CDS-mode testing

[Jiangli Zhou]

Please review the change for JEP 341 (Default CDS Archives) sub-task, 
JDK-8210592.

Currently, there are sub-sets of tiered tests running in CDS mode 
(defined in closed tier5 and tier6 test definitions). These tests are 
also executed in 'normal' mode in various tiers. GENERATE_CDS_ARCHIVE is 
used to create a CDS archive using the default classlist before 
executing those tests in CDS-mode.

When the default CDS archive is enabled, it is no longer necessary to 
execute those tests in CDS mode explicitly since all tiered testing 
enables the default CDS archive by default. The change in the webrev 
removes GENERATE_CDS_ARCHIVE. To increase test coverage, the test sets 
in CDS mode are converted to run in non-CDS mode (with -Xshare:off 
enabled explicitly) in tier5 and tier6. The conversion is done in the 
closed repo.

   webrev: http://cr.openjdk.java.net/~jiangli/8210592/webrev.00/

   JEP sub-task: https://bugs.openjdk.java.net/browse/JDK-8210592

Tested tier5 and tier6 with the default CDS archive patch enabled.

Thanks,

Jiangli