RFR: 8325163: Enable -Wpedantic on clang

[David Holmes]

On Mon, 5 Feb 2024 03:07:43 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

> I consider the "format '%p' expects argument of type 'void*" warnings to be not at all helpful. Fortunately we don't use '%p' in HotSpot,

We do use it in hotspot. Not a huge amount as we have the legacy format specifiers for PTR_FORMAT etc.

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PR Comment: https://git.openjdk.org/jdk/pull/17687#issuecomment-1926298655