[jdk22] RFR: 8322512: StringBuffer.repeat does not work correctly after toString() was called [v2]

[Jim Laskey]

> The new repeat methods were not clearing the toStringCache.

Jim Laskey 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 'master' into backport-JimLaskey-df22fb32
 - Backport df22fb322e6c4c9931a770bd0abf4c43b83c4e4a

-------------

Changes:
  - all: https://git.openjdk.org/jdk22/pull/87/files
  - new: https://git.openjdk.org/jdk22/pull/87/files/e9817489..0ae24358

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk22&pr=87&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk22&pr=87&range=00-01

  Stats: 7075 lines in 237 files changed: 4658 ins; 1464 del; 953 mod
  Patch: https://git.openjdk.org/jdk22/pull/87.diff
  Fetch: git fetch https://git.openjdk.org/jdk22.git pull/87/head:pull/87

PR: https://git.openjdk.org/jdk22/pull/87