RFR: 8329417: Remove objects with no pointers from relocation bitmap [v2]

[Matias Saavedra Silva]

> 8329417: Remove objects with no pointers from relocation bitmap

Matias Saavedra Silva has updated the pull request incrementally with one additional commit since the last revision:

  Reverted assert message change

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Changes:
  - all: https://git.openjdk.org/jdk/pull/18803/files
  - new: https://git.openjdk.org/jdk/pull/18803/files/46c5ae18..ab11cc72

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18803&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18803&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/18803.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18803/head:pull/18803

PR: https://git.openjdk.org/jdk/pull/18803