RFR: 8314990: Generational ZGC: Strong OopStorage stats reported as weak roots

[Erik Österlund]

On Thu, 24 Aug 2023 14:43:51 GMT, Jonas Norlinder <duke at openjdk.org> wrote:

> `ZOopStorageSetIteratorStrong::apply` has incorrect `ZRootStatTimer`event. Should record strong roots but are recording weak roots.

Looks good.

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Marked as reviewed by eosterlund (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/15420#pullrequestreview-1595162280