RFR: 8343158: [JVMCI] ZGC should deoptimize on old gen allocation

[Tom Rodriguez]

JVMCI also needs the special handling that ZGC performs for C2 for slow path allocations that are performed in old gen.

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Commit messages:
 - 8343158: [JVMCI] ZGC should deoptimize on old gen allocation

Changes: https://git.openjdk.org/jdk/pull/24957/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24957&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8343158
  Stats: 3 lines in 1 file changed: 2 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/24957.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24957/head:pull/24957

PR: https://git.openjdk.org/jdk/pull/24957