ConstantDynamic: Add tests for ConstantDynamic

[tajila]

Andrew - "we need to ensure the unresolved and resolved cases are tested in the JIT for reference type dynamic constants as well as the various primitive typed dynamic constants to make sure the code is working correctly"

[DanHeidinga]

@smlambert @llxia Are you monitoring the jtreg tests in OpenJDK jdk repo? If you run across any tests for ConstantDynamic aka Condy (JEP 309), we'd appreciate a heads up to avoid duplicating the testing.

[smlambert]

We are not monitoring the repo, but we do run them at AdoptOpenJDK, including starting to turn on the JDK10 tests, once all of them are enabled, we will have a better view of that set.

[smlambert]

ok, I see the jdk11 label is now on this... so dismiss my comment about looking for ConstantDynamic tests in the Jdk10 tests

[fjeremic]

A part of this is being taken care of in #2870.

[pshipton]

Can this be closed, or is there more to do?
@DanHeidinga @smlambert @llxia

[DanHeidinga]

I think there are more corner cases to cover:

• Recursive use of Condy
• More error cases
• Condy as a BSM arg to another Condy and/or Indy
• Tests for jdk.internal.reflect.ConstantPool access to Condy
• Redefinition of a class with a Condy - confirm the condy isn't reresolved

and possibly other cases I've missed.

This should stay open until we've added more testing or identified relevant tests for these cases in OpenJDK that can be run on OpenJ9.