RFR: 8374796: CompressedOops versions of runtime/cds/TestDefaultArchiveLoading.java aren't run

[Coleen Phillimore]

This simple change from

@requires !vm.gc.Z
to
@requires vm.gc != "Z"

Makes the two coops version of this test run and not get: 
Test results: passed: 2; did not meet platform requirements: 2

Neither of these enables the test to run.
@requires vm.gc.Z == false
or
@requires vm.opt.final.UseZGC == false

This could be a bug in jtreg-ext/requires/VMProps.java support but I was unable to find that.

Tested with the test.

-------------

Commit messages:
 - 8374796: CompressedOops versions of runtime/cds/TestDefaultArchiveLoading.java aren't run

Changes: https://git.openjdk.org/jdk/pull/29125/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29125&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8374796
  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/29125.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/29125/head:pull/29125

PR: https://git.openjdk.org/jdk/pull/29125