RFR: 8368842: Parallel: Refactor PCAddThreadRootsMarkingTaskClosure

Mon Sep 29 07:51:19 UTC 2025

Trivial revising the signature of `PCAddThreadRootsMarkingTaskClosure` to pass `ParCompactionManager*` instead of `uint worker_id` as the constructor arg.

Test: tier1

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Commit messages:
 - pgc-full-gc-refactor

Changes: https://git.openjdk.org/jdk/pull/27541/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27541&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8368842
  Stats: 11 lines in 1 file changed: 0 ins; 5 del; 6 mod
  Patch: https://git.openjdk.org/jdk/pull/27541.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27541/head:pull/27541

PR: https://git.openjdk.org/jdk/pull/27541