RFR: 8291359: Specification of method j.l.foreign.VaList::skip still deserves clarification [v2]

[Jorn Vernee]

> A small clarification of the VaList spec to say that attempts to access elements through an incorrect memory layout result in undefined behavior.

Jorn Vernee has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:

  Clarify spec

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Changes:
  - all: https://git.openjdk.org/jdk/pull/11440/files
  - new: https://git.openjdk.org/jdk/pull/11440/files/4ec1cf54..79590943

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=11440&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=11440&range=00-01

  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/11440.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11440/head:pull/11440

PR: https://git.openjdk.org/jdk/pull/11440