RFR: 8364588: Export the NPE backtracking functionality to general null-checking APIs

[Chen Liang]

Provide a general facility for our null check APIs like Objects::requireNonNull or future Checks::nullCheck (void), converting the existing infrastructure to start tracking from a given stack site (depth offset) and a given stack slot (offset value).

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Commit messages:
 - Years
 - Roll back Objects.rNN for now
 - Review remarks
 - Merge branch 'master' of https://github.com/openjdk/jdk into exp/requireNonNull-message-hacks
 - Bork
 - Try generify the NPE tracing API
 - Merge branch 'master' of https://github.com/openjdk/jdk into exp/requireNonNull-message-hacks
 - Perf concerns
 - Tests, MPs based prints
 - Objects rNN better message

Changes: https://git.openjdk.org/jdk/pull/26600/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=26600&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8364588
  Stats: 390 lines in 12 files changed: 335 ins; 13 del; 42 mod
  Patch: https://git.openjdk.org/jdk/pull/26600.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26600/head:pull/26600

PR: https://git.openjdk.org/jdk/pull/26600