8024921: PPC64 (part 113): Extend Load and Store nodes to know about memory ordering Summary: Add a field to C2 LoadNode and StoreNode classes which indicates whether the load/store should do an acquire/release on platforms which support it. Reviewed-by: kvn

This is a small quick test suite to (provide a framework to)
verify the output of a JDK build of the langtools component. 

It verifies the contents exist and are minimally functional.