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

[Jorn Vernee]

> Manual merge of foreign-memaccess+abi into foreign-preview

Jorn Vernee has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 652 commits:

 - Merge branch 'foreign-preview' into foreign-memaccess+abi
 - 8277845: Clean up use if ProgrammableInvoker/UpcallHandler.USE_INTRINSICS in tests.
   
   Reviewed-by: mcimadamore
 - Automatic merge of master into foreign-memaccess+abi
 - Merge master
 - Automatic merge of master into foreign-memaccess+abi
 - Automatic merge of master into foreign-memaccess+abi
 - Automatic merge of master into foreign-memaccess+abi
 - 8278151: Heap segments should handle alignment constraints in a deterministic fashion
   
   Reviewed-by: psandoz, jvernee
 - Merge master
 - Merge master
 - ... and 642 more: https://git.openjdk.java.net/panama-foreign/compare/497f3acf...4b11c98b

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Changes: https://git.openjdk.java.net/panama-foreign/pull/631/files
 Webrev: https://webrevs.openjdk.java.net/?repo=panama-foreign&pr=631&range=01
  Stats: 30345 lines in 126 files changed: 26914 ins; 2660 del; 771 mod
  Patch: https://git.openjdk.java.net/panama-foreign/pull/631.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-foreign pull/631/head:pull/631

PR: https://git.openjdk.java.net/panama-foreign/pull/631