RFR: 8301123: Enable Symbol refcounting underflow checks in PRODUCT

[Frederic Parain]

On Thu, 26 Jan 2023 13:24:42 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> Enabling refcounting underflow detection in product would have helped with debugging [JDK-8278965](https://bugs.openjdk.org/browse/JDK-8278965).  We'd rather have this assert for customers than the subsequent memory corruption.
> Tested with tier1-4, 7, 8 with linux-x64 product.

Looks good to me.

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Marked as reviewed by fparain (Committer).

PR: https://git.openjdk.org/jdk/pull/12218