[foreign-memaccess+abi] Integrated: Fix visibility issues

[Per Minborg]

On Fri, 22 Sep 2023 12:08:00 GMT, Per Minborg <pminborg at openjdk.org> wrote:

> This PR proposes to fix two visibility issues where package private interfaces are exposed via another class' public metods.

This pull request has now been integrated.

Changeset: 67ae48ec
Author:    Per Minborg <pminborg at openjdk.org>
URL:       https://git.openjdk.org/panama-foreign/commit/67ae48ecfbddd785013f15afd632c875b0d75b83
Stats:     2 lines in 1 file changed: 0 ins; 0 del; 2 mod

Fix visibility issues

Reviewed-by: mcimadamore

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PR: https://git.openjdk.org/panama-foreign/pull/891