RFR: 8305233: G1: Refactor G1ClearCardTableTask

Thu Mar 30 10:45:21 UTC 2023

Simple refactoring for better encapsulation.

Test: hotspot_gc

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Commit messages:
 - g1-clear-card

Changes: https://git.openjdk.org/jdk/pull/13242/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13242&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8305233
  Stats: 23 lines in 1 file changed: 6 ins; 13 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/13242.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13242/head:pull/13242

PR: https://git.openjdk.org/jdk/pull/13242