RFR: 8313882: Fix -Wconversion warnings in runtime code [v6]

Thu Aug 10 01:29:28 UTC 2023

On Thu, 10 Aug 2023 00:22:57 GMT, Dean Long <dlong at openjdk.org> wrote:

>> If this is intptr_t, it'll get a Wconversion warning on the uses that expect int.
>
> OK, in that case checked_cast<int>() would be more correct.

Ok.  Added a checked_cast.

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PR Review Comment: https://git.openjdk.org/jdk/pull/15177#discussion_r1289404613