[foreign-jextract] [Rev 01] RFR: 8244959: Jextract's VarargsInvoker fails to link functions when passing integer types other than long

[Henry Jen]

> This PR makes sure VarargsInvoker use exact size match layout for carrier type for varargs parameters.
> 
> Use sprintf as the test case, tested on Mac OS X, need verification on Windows to verify the needed share library is
> loaded by JVM.

Henry Jen 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 three additional commits since
the last revision:

 - 8244959: Jextract's VarargsInvoker fails to link functions when passing integer types other than long
 - Merge branch 'foreign-jextract' of https://github.com/openjdk/panama-foreign into 8244959
 - 8244959: Jextract's VarargsInvoker fails to link functions when passing integer types other than long

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

Changes:
  - all: https://git.openjdk.java.net/panama-foreign/pull/164/files
  - new: https://git.openjdk.java.net/panama-foreign/pull/164/files/36c21c2e..58e9d382

Webrevs:
 - full: https://webrevs.openjdk.java.net/panama-foreign/164/webrev.01
 - incr: https://webrevs.openjdk.java.net/panama-foreign/164/webrev.00-01

  Stats: 87 lines in 3 files changed: 33 ins; 20 del; 34 mod
  Patch: https://git.openjdk.java.net/panama-foreign/pull/164.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-foreign pull/164/head:pull/164

PR: https://git.openjdk.java.net/panama-foreign/pull/164