RFR: 8354446: [BACKOUT] Remove friends for ObjectMonitor

[Coleen Phillimore]

This reverts commit 36069f6efac4fd02393d28f190ab2ab92b113fd3.

I don't know why we can't call ObjectMonitor::recursions() rather than updating it directly.
Rerunning tier3.

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Commit messages:
 - Revert "8354234: Remove friends for ObjectMonitor"

Changes: https://git.openjdk.org/jdk/pull/24599/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24599&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8354446
  Stats: 9 lines in 2 files changed: 5 ins; 2 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/24599.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24599/head:pull/24599

PR: https://git.openjdk.org/jdk/pull/24599