RFR: 8253064: monitor list simplifications and getting rid of TSM

[Daniel D.Daugherty]

Changes from @fisk and @dcubed-ojdk to:

- simplify ObjectMonitor list management
- get rid of Type-Stable Memory (TSM)

This change has been tested with Mach5 Tier[1-3],4,5,6,7,8; no new regressions.
Aurora Perf runs have also been done (DaCapo-h2, Quick Startup/Footprint,
SPECjbb2015-Tuned-G1, SPECjbb2015-Tuned-ParGC, Volano)
  - a few minor regressions (<= -0.24%)
  - Volano is 6.8% better

Eric C. has also running promotion perf runs on these bits and says "the results look fine".

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Commit messages:
 - 8253064.v00.part2
 - 8253064.v00.part1

Changes: https://git.openjdk.java.net/jdk/pull/642/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=642&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8253064
  Stats: 2510 lines in 25 files changed: 604 ins; 1721 del; 185 mod
  Patch: https://git.openjdk.java.net/jdk/pull/642.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/642/head:pull/642

PR: https://git.openjdk.java.net/jdk/pull/642