[foreign-abi] RFR: Merge foreign-memaccess [v2]

[J.Duke]

> Hi all,
> 
> this is an _automatically_ generated pull request to notify you that there are 94 commits from the branch `foreign-memaccess`that can **not** be merged into the branch `foreign-abi`:
> 
> The following files contains merge conflicts:
> 
> - src/java.base/share/classes/java/nio/Direct-X-Buffer.java.template
> - src/jdk.incubator.foreign/share/classes/jdk/internal/foreign/AbstractMemorySegmentImpl.java
> - src/jdk.incubator.foreign/share/classes/jdk/internal/foreign/MemoryScope.java
> 
> All Committers in this [project](https://openjdk.java.net/census#panama) have access to my [personal fork](https://github.com/openjdk-bot/panama-foreign) and can therefore help resolve these merge conflicts (you may want to coordinate who should do this).
> The following paragraphs will give an example on how to solve these merge conflicts and push the resulting merge commit to this pull request.
> The below commands should be run in a local clone of your [personal fork](https://wiki.openjdk.java.net/display/skara#Skara-Personalforks) of the [openjdk/panama-foreign](https://github.com/openjdk/panama-foreign) repository.
> 
> # Ensure target branch is up to date
> $ git checkout foreign-abi
> $ git pull https://github.com/openjdk/panama-foreign.git foreign-abi
> 
> # Fetch and checkout the branch for this pull request
> $ git fetch https://github.com/openjdk-bot/panama-foreign.git +74:openjdk-bot-74
> $ git checkout openjdk-bot-74
> 
> # Merge the target branch
> $ git merge foreign-abi
> 
> When you have resolved the conflicts resulting from the `git merge` command above, run the following commands to create a merge commit:
> 
> $ git add paths/to/files/with/conflicts
> $ git commit -m 'Merge foreign-memaccess'
> 
> 
> When you have created the merge commit, run the following command to push the merge commit to this pull request:
> 
> $ git push https://github.com/openjdk-bot/panama-foreign.git openjdk-bot-74:74
> 
> _Note_: if you are using SSH to push commits to GitHub, then change the URL in the above `git push` command accordingly.
> 
> Thanks,
> J. Duke

J. Duke 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 270 additional commits since the last revision:

 - Merge branch 'foreign-abi' into openjdk-bot-74
 - 8256080: AArch64: fatal error with unexpected intrinsic id _linkToNative
   
   Reviewed-by: jvernee
 - Fix Aarch64 build failure
   
   Reviewed-by: jvernee
 - Merge foreign-memaccess
 - Automatic merge of foreign-memaccess into foreign-abi
 - Automatic merge of foreign-memaccess into foreign-abi
 - Merge foreign-memaccess
 - Merge foreign-memaccess
 - 8254682: Close MemorySegments passed to upcalls after the upcall is done
   
   Reviewed-by: mcimadamore
 - Automatic merge of foreign-memaccess into foreign-abi
 - ... and 260 more: https://git.openjdk.java.net/panama-foreign/compare/b8762787...019200a7

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

Changes:
  - all: https://git.openjdk.java.net/panama-foreign/pull/394/files
  - new: https://git.openjdk.java.net/panama-foreign/pull/394/files/b8762787..019200a7

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=panama-foreign&pr=394&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=panama-foreign&pr=394&range=00-01

  Stats: 67653 lines in 217 files changed: 67477 ins; 88 del; 88 mod
  Patch: https://git.openjdk.java.net/panama-foreign/pull/394.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-foreign pull/394/head:pull/394

PR: https://git.openjdk.java.net/panama-foreign/pull/394