RFR: 8342469: Improve API documentation for java.lang.classfile.instruction [v6]

[Chen Liang]

> Improve the documentation for classfile instructions. Includes links to all opcodes, usage notes for instructions, and other various fixes.
> 
> API Diff: https://cr.openjdk.org/~liach/apidiff/cf-instr/java.base/module-summary.html
> Javadoc: https://cr.openjdk.org/~liach/javadoc/cf-instr/java.base/java/lang/classfile/instruction/package-summary.html
> 
> Please review the associated CSR as well.

Chen Liang has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 14 commits:

 - Avoid using "record", other cleans
 - Merge branch 'master' of https://github.com/openjdk/jdk into docs/cf-instruction
 - Merge branch 'master' of https://github.com/openjdk/jdk into docs/cf-instruction
 - Leftover problems
 - typo
 - More cleanup
 - Remove a few confusions around bad modeling, some missing exceptions, also the labelless info models
 - Non-int constant values
 - Further facelift
 - Merge branch 'master' of https://github.com/openjdk/jdk into docs/cf-instruction
 - ... and 4 more: https://git.openjdk.org/jdk/compare/79eb77b7...c1517921

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

Changes: https://git.openjdk.org/jdk/pull/21625/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21625&range=05
  Stats: 2434 lines in 39 files changed: 1993 ins; 27 del; 414 mod
  Patch: https://git.openjdk.org/jdk/pull/21625.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21625/head:pull/21625

PR: https://git.openjdk.org/jdk/pull/21625