RFR: 8370890: Start of release updates for JDK 27 [v7]

[Nizar Benalla]

> Get JDK 27 underway.

Nizar Benalla 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 17 additional commits since the last revision:

 - problem list failing test
 - Merge branch 'master' into start-of-release-27
 - expand start of release documentation
 - Merge branch 'master' into start-of-release-27
 - Changes required for hard 80 character line limit
 - Update --release 26 symbol information for JDK 26 build 25
   The macOS/AArch64 build 25 was taken from https://jdk.java.net/26/
 - revert MAX_COLUMNS to 80
 - Update LATEST_MAJOR_VERSION in Versions.java
 - Merge branch 'master' into start-of-release-27
 - Merge branch 'master' into start-of-release-27
 - ... and 7 more: https://git.openjdk.org/jdk/compare/41b7823d...e5214614

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/28130/files
  - new: https://git.openjdk.org/jdk/pull/28130/files/78895b2b..e5214614

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28130&range=06
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28130&range=05-06

  Stats: 11187 lines in 367 files changed: 7430 ins; 1793 del; 1964 mod
  Patch: https://git.openjdk.org/jdk/pull/28130.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28130/head:pull/28130

PR: https://git.openjdk.org/jdk/pull/28130