[jdk18u] RFR: 8288754: GCC 12 fails to build zReferenceProcessor.cpp

[Aleksey Shipilev]

Clean backport to improve GCC 12 support.

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Commit messages:
 - Backport 834d92dd72257ab5d8c6759028098ac0867c5752

Changes: https://git.openjdk.org/jdk18u/pull/176/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk18u&pr=176&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8288754
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk18u/pull/176.diff
  Fetch: git fetch https://git.openjdk.org/jdk18u pull/176/head:pull/176

PR: https://git.openjdk.org/jdk18u/pull/176