[jdk17u-dev] RFR: 8341779: [REDO BACKPORT] type annotations are not visible to javac plugins across compilation boundaries (JDK-8225377) [v3]

[Liam Miller-Cushon]

> [JDK-8341779](https://bugs.openjdk.org/browse/JDK-8341779) is a redo of the backport of [JDK-8323093](https://bugs.openjdk.org/browse/JDK-8323093), see also discussion in CSR [JDK-8346471](https://bugs.openjdk.org/browse/JDK-8346471).
> 
> JDK-8341779 was backported to JDK 21u and released in 21.0.8, as discussed in the CSR this PR proposes integrating it into a future 17u release now that 21.0.8 has been released.
> 
> Similar to [JDK-8360406](https://bugs.openjdk.org/browse/JDK-8360406) for 21u, a future backport will disable this logic for 17u by default, and optionally allow the fix to be enabled with `-XDaddTypeAnnotationsToSymbol`.
> 
> The patch did not apply cleanly, I resolved one merge conflict due to changes to the internal `TypeMetadata` API for JDK-8303820.

Liam Miller-Cushon 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 four additional commits since the last revision:

 - Merge branch 'master' into redo-JDK-8341779
 - Backport 67c4a0826babb55ce56acf2b3b289b51d9d5529e
 - Resolve merge conflict
   
   due to changes to the internal TypeMetadata API for JDK-8303820
 - Backport de6667cf11aa59d1bab78ae5fb235ea0b901d5c4

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

Changes:
  - all: https://git.openjdk.org/jdk17u-dev/pull/4124/files
  - new: https://git.openjdk.org/jdk17u-dev/pull/4124/files/f4deb606..aaf1c53e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=4124&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=4124&range=01-02

  Stats: 12394 lines in 219 files changed: 7964 ins; 3811 del; 619 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/4124.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/4124/head:pull/4124

PR: https://git.openjdk.org/jdk17u-dev/pull/4124