RFR: 8337783: Use THROW_NULL instead of THROW_0 in pointer contexts in misc runtime code

[Kim Barrett]

On Mon, 5 Aug 2024 14:47:35 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> Please review this trivial change that, in misc. runtime code where a pointer
>> value is required, replaces uses of THROW_0 and THROW_MSG_0 with THROW_NULL
>> and THROW_MSG_NULL respectively.
>> 
>> Testing: mach5 tier1
>
> Current changes look okay. Same as in other PR, I have not checked these caught all the instances of `THROW_*` in those files.

Thanks for reviews @shipilev and @stefank

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PR Comment: https://git.openjdk.org/jdk/pull/20457#issuecomment-2269820228