RFR: 8367129: Move input validation checks to Java for java.lang.StringLatin1 intrinsics [v5]

[Volkan Yazici]

> Moves input validation checks to Java for `java.lang.StringLatin1` intrinsics. While doing so, affected `java.lang.StringUTF16` methods needed to be updated due to relaxed checks at intrinsics. The javadocs of the touched methods are extensively overhauled.

Volkan Yazici has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 16 additional commits since the last revision:

 - Merge remote-tracking branch 'upstream/master' into sLatin1Intr
 - Remove redundant checks in `indexOf0(byte[] value, byte[] str)`
 - More `indexOf` et al. guards and other review feedback
 - Use `vmIntrinsics::*` to refer to intrinsics from Java
 - Improve vertical alignment in `vmIntrinsics.hpp`
 - Apply review feedback
 - More doc updates
 - Reflect that `VerifyIntrinsicChecks` is removed
 - Merge remote-tracking branch 'upstream/master' into sLatin1Intr
 - Fix `Helper`
 - ... and 6 more: https://git.openjdk.org/jdk/compare/87c57222...6eb75a06

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/28832/files
  - new: https://git.openjdk.org/jdk/pull/28832/files/7efdc944..6eb75a06

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28832&range=04
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28832&range=03-04

  Stats: 26826 lines in 591 files changed: 12839 ins; 3596 del; 10391 mod
  Patch: https://git.openjdk.org/jdk/pull/28832.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28832/head:pull/28832

PR: https://git.openjdk.org/jdk/pull/28832