[foreign-memaccess+abi] RFR: Fix another slip up in spliterator test

[Paul Sandoz]

On Thu, 15 Apr 2021 00:07:38 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

> I thought I had fixed all references to old factory method names, but I missed another bunch in the segment spliterator data provider.
> 
> I have now ran all tests in jdk_util and they all pass.

Marked as reviewed by psandoz (Committer).

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PR: https://git.openjdk.java.net/panama-foreign/pull/505