RFR: 8204167: Filter out tests requiring compressed oops when CompressedOops is disabled

[Kim Barrett]

> On May 31, 2018, at 8:09 AM, Stefan Karlsson <stefan.karlsson at oracle.com> wrote:
> 
> Hi all,
> 
> Please review this patch to add @requires vm.opt.final.UseCompressedOops to those jtreg tests that requires compressed oops.
> 
> http://cr.openjdk.java.net/~stefank/8204167/webrev.01/
> https://bugs.openjdk.java.net/browse/JDK-8204167
> 
> With this patch we now filter out tests that require compressed oops, when -XX:-UseCompressedOops is passed or ZGC is tested.
> 
> Thanks,
> StefanK

test/hotspot/jtreg/runtime/CompressedOops/CompressedClassPointers.java
test/hotspot/jtreg/runtime/CompressedOops/CompressedClassSpaceSize.java
test/hotspot/jtreg/runtime/Metaspace/MaxMetaspaceSizeTest.java

These seem to be testing UseCompressedClassPointers rather than
UseCompressedOops.  Shouldn't they require UseCompressedClassPointers
instead?  I know UCCP requires UCO, but requiring UCO here seems odd.