[foreign-abi] RFR: 8251047: GC stackwalking doesn't work when intrinsics are enabled (followup) [v2]

[Jorn Vernee]

> Hi,
> 
> This PR is a followup on the earlier https://github.com/openjdk/panama-foreign/pull/279 PR. It adds a jtreg test that
> stresses the problematic stack walking fixed in the previous PR, and in particular the use-case that was failing.
> This relies on a new WhiteBox API to manually (and reliably) trigger stack frame walking and verification.
> 
> Thanks,
> Jorn

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

 - Merge branch 'foreign-abi' into StackWalkTest
 - Add a stack walk test

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Changes: https://git.openjdk.java.net/panama-foreign/pull/294/files
 Webrev: https://webrevs.openjdk.java.net/?repo=panama-foreign&pr=294&range=01
  Stats: 160 lines in 4 files changed: 160 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/panama-foreign/pull/294.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-foreign pull/294/head:pull/294

PR: https://git.openjdk.java.net/panama-foreign/pull/294