RFR: 8286304: Rename diagnostic flag GCParallelVerificationEnabled to UseGCParallelVerification

[Thomas Schatzl]

Hi all,

  can I get your opinion about this change, if you think it's worth doing, and if so, a review for it?

If the change goes forward, I will do a release note. Since this is a diagnostic flag, there is no CSR required.

I grepped sources for that flag, it seems to be only used in these two places.

Testing: local compilation

Thanks,
  Thomas

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Commit messages:
 - 8286304: Rename diagnostic flag GCParallelVerificationEnabled to UseGCParallelVerification

Changes: https://git.openjdk.java.net/jdk/pull/8813/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=8813&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8286304
  Stats: 2 lines in 2 files changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8813.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8813/head:pull/8813

PR: https://git.openjdk.java.net/jdk/pull/8813