[jdk25] RFR: 8361529: GenShen: Fix bad assert in swap card tables [v2]

[William Kemper]

> Clean backport. Fixes bad pointer in assert.

William Kemper has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge branch 'jdk-25' into backport-earthling-amzn-1de2acea-jdk25
 - Backport 1de2acea77da57fd44b214332a73cc6621806e4d

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Changes:
  - all: https://git.openjdk.org/jdk/pull/26228/files
  - new: https://git.openjdk.org/jdk/pull/26228/files/889f5af1..abf285a2

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=26228&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=26228&range=00-01

  Stats: 97 lines in 12 files changed: 55 ins; 16 del; 26 mod
  Patch: https://git.openjdk.org/jdk/pull/26228.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26228/head:pull/26228

PR: https://git.openjdk.org/jdk/pull/26228