RFR: 8335593: Fix -Wzero-as-null-pointer-constant warning in Type_Array ctor

[Kim Barrett]

On Wed, 3 Jul 2024 05:33:13 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

>> Please review this trivial change to the Type_Array constructor. The initial
>> value for the _types member is changed from 0 to nullptr. This removes some
>> -Wzero-as-null-pointer-constant warnings when building with that enabled.
>> 
>> Testing: mach5 tier1
>
> Looks good and trivial.

Thanks for review @TobiHartmann

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PR Comment: https://git.openjdk.org/jdk/pull/19998#issuecomment-2205157610