RFR(S) 8193664 [10] - AppCDS tests should use -XX:+UnlockCommercialFeatures when running with commercial JDK

[Ioi Lam]

Hi,

Please review this small change in the AppCDS tests

https://bugs.openjdk.java.net/browse/JDK-8193664
http://cr.openjdk.java.net/~iklam/jdk10/8193664-commercial-appcds-testbug.v01/

Summary:

     * This patch changes tests ONLY. There's no code change.
     * The change affects ONLY the commercial JDK built by Oracle.
     * It does not affect the OpenJDK

     * Oracle commercial JDK 10 still requires -XX:+UnlockCommercialFeatures
       to be specified when using AppCDS tests. This requirement will be
       removed soon in the future, but meanwhile, we need to add a few
       -XX:+UnlockCommercialFeatures flags in the test cases to make 
them pass.

Tested under both Oracle commercial JDK and OpenJDK builds. All affected
tests passed in both configurations.

Thanks
- Ioi