[foreign-jextract] RFR: 8253419: jextract should generate RuntimeHelper as a package private class

[Athijegannathan Sundararajan]

On Mon, 21 Sep 2020 11:34:47 GMT, Jorn Vernee <jvernee at openjdk.org> wrote:

> Can nonCloseableNonTransferableSegment, nonCloseableSegment, and asArrayRestricted be made `private` as well? I don't
> think they are used outside of RuntimeHelper right?

nonCloseableNonTransferableSegment and asArrayRestricted are used in generated struct classes (StructBuilder). Will
check  about nonCloseableSegment (and if not used outside, will make it private)

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PR: https://git.openjdk.java.net/panama-foreign/pull/347