RFR: 7903554: JMH: add Threads.HALF_MAX constant [v2]

[Sergey Kuksenko]

> add Threads.HALF_MAX constant equals to "Runtime.getRuntime().availableProcessors()/2"

Sergey Kuksenko has updated the pull request incrementally with one additional commit since the last revision:

  CODETOOLS-7903554: JMH: add Threads.HALF_MAX constant (cont)

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Changes:
  - all: https://git.openjdk.org/jmh/pull/118/files
  - new: https://git.openjdk.org/jmh/pull/118/files/f188d11d..b0850aea

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jmh&pr=118&range=01
 - incr: https://webrevs.openjdk.org/?repo=jmh&pr=118&range=00-01

  Stats: 5 lines in 5 files changed: 0 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/jmh/pull/118.diff
  Fetch: git fetch https://git.openjdk.org/jmh.git pull/118/head:pull/118

PR: https://git.openjdk.org/jmh/pull/118