RFR(XS) 8198796 Create test case for CDS + condy

[Ioi Lam]

Here's a simple sanity test to make sure CDS can archive classes with 
JVM_CONSTANT_Dynamic entries in their constant pools:

http://cr.openjdk.java.net/~iklam/jdk11/8198796-cds-test-case-for-condy.v01/
https://bugs.openjdk.java.net/browse/JDK-8198796

Thanks
- Ioi