RFR: 8354556: Expand value-based class warnings to java.lang.ref API [v18]

[Vicente Romero]

> This PR is defining a new internal annotation, `@jdk.internal.RequiresIdentity`, with target types PARAMETER and TYPE_PARAMETER. The @RequiresIdentity annotation expresses the expectation that an argument to a given method or constructor parameter will be an object with a unique identity, not an instance of a value-based class; or that the type argument to a given type parameter will not be a value-based class type.
> 
> For more details please refer to the complete description in the corresponding JIRA entry [1]
> 
> TIA
> 
> [1] https://bugs.openjdk.org/browse/JDK-8354556

Vicente Romero has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 39 commits:

 - Merge branch 'master' into JDK-8354556
 - review comments
 - addressing review comments
 - addressing review comments
 - update warning message
 - Merge branch 'master' into JDK-8354556
 - Update src/jdk.compiler/share/classes/com/sun/tools/javac/code/Lint.java
   
   Co-authored-by: Chen Liang <liach at openjdk.org>
 - additional changes from Archie
 - removing dead code
 - integrating code from Archie
 - ... and 29 more: https://git.openjdk.org/jdk/compare/265d6301...904bd4cd

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

Changes: https://git.openjdk.org/jdk/pull/24746/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24746&range=17
  Stats: 647 lines in 32 files changed: 562 ins; 37 del; 48 mod
  Patch: https://git.openjdk.org/jdk/pull/24746.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24746/head:pull/24746

PR: https://git.openjdk.org/jdk/pull/24746