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

[J.Duke]

> Hi all,
> 
> this is an _automatically_ generated pull request to notify you that there are 109 commits from the branch `master`that can **not** be merged into the branch `foreign-memaccess+abi`:
> 
> The following file contains merge conflicts:
> 
> - src/hotspot/share/runtime/sharedRuntime.cpp
> 
> 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-memaccess+abi
> $ git pull https://github.com/openjdk/panama-foreign.git foreign-memaccess+abi
> 
> # Fetch and checkout the branch for this pull request
> $ git fetch https://github.com/openjdk-bot/panama-foreign.git +93:openjdk-bot-93
> $ git checkout openjdk-bot-93
> 
> # Merge the target branch
> $ git merge foreign-memaccess+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 master'
> 
> 
> 
> 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-93:93
> 
> 
> _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 pull request now contains 110 commits:

 - Merge branch 'foreign-memaccess+abi' into 93
 - Automatic merge of jdk:master into master
 - 8265330: G1: Fix comment in G1FullGCPrepareTask::G1CalculatePointersClosure
   
   Reviewed-by: shade, mli
 - 8264987: G1: Fill BOTs for Survivor-turned-to-Old regions in full gc
   
   Co-authored-by: Shoubing Ma <mashoubing1 at huawei.com>
   Reviewed-by: tschatzl, sjohanss
 - 8265119: G1: update_remset_before_rebuild mixes liveness in words with liveness in bytes
   
   Reviewed-by: tschatzl, sjohanss
 - 8264480: Unreachable code in nmethod.cpp inside #ifdef DEBUG
   
   Reviewed-by: chagedorn, kvn
 - 8264104: Eliminate unnecessary vector mask conversion during VectorUnbox for floating point VectorMask
   
   Reviewed-by: kvn, vlivanov
 - 8262108: SimpleDateFormat formatting broken for sq_MK Locale
   
   Reviewed-by: naoto
 - 8265180: JvmtiCompiledMethodLoadEvent should include the stub section of nmethods
   
   Reviewed-by: kvn, sspitsyn
 - 8258794: Support for CLDR version 39
   
   Reviewed-by: joehw, erikj
 - ... and 100 more: https://git.openjdk.java.net/panama-foreign/compare/ff1fab42...2ff1d87d

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

Changes: https://git.openjdk.java.net/panama-foreign/pull/507/files
 Webrev: https://webrevs.openjdk.java.net/?repo=panama-foreign&pr=507&range=01
  Stats: 42870 lines in 1731 files changed: 10519 ins; 27840 del; 4511 mod
  Patch: https://git.openjdk.java.net/panama-foreign/pull/507.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-foreign pull/507/head:pull/507

PR: https://git.openjdk.java.net/panama-foreign/pull/507