RFR: 8347408: Create an internal method handle adapter for system calls with errno [v6]

[Per Minborg]

> As we advance, converting older JDK code to use the relatively new FFM API requires system calls that can provide `errno` and the likes to explicitly allocate a MemorySegment to capture potential error states. This can lead to negative performance implications if not designed carefully and also introduces unnecessary code complexity.
> 
> Hence, this PR proposes adding a JDK internal method handle adapter that can be used to handle system calls with `errno`, `GetLastError`, and `WSAGetLastError`.
> 
> It relies on an efficient carrier-thread-local cache of memory regions to allide allocations.

Per Minborg has updated the pull request incrementally with one additional commit since the last revision:

  Simplify

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Changes:
  - all: https://git.openjdk.org/jdk/pull/25043/files
  - new: https://git.openjdk.org/jdk/pull/25043/files/f9511b88..e435762b

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25043&range=05
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25043&range=04-05

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/25043.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25043/head:pull/25043

PR: https://git.openjdk.org/jdk/pull/25043