RFR: 8256253: Defer Biased Locking obsoletion to JDK 18 [v2]

[Patricio Chilano Mateo]

> Hi all,
> 
> Please review the following change to defer biased-locking obsoletion to 18, as discussed in [1].
> I updated the special_jvm_flags table and re-enabled gtest verify_special_flags.
> 
> Thanks,
> Patricio
> 
> [1] https://mail.openjdk.java.net/pipermail/hotspot-dev/2020-November/045454.html

Patricio Chilano Mateo has updated the pull request incrementally with one additional commit since the last revision:

  move CriticalJNINatives up in table

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/1281/files
  - new: https://git.openjdk.java.net/jdk/pull/1281/files/b949dcd3..64e189c7

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=1281&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=1281&range=00-01

  Stats: 2 lines in 1 file changed: 1 ins; 1 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1281.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1281/head:pull/1281

PR: https://git.openjdk.java.net/jdk/pull/1281