RFR: 8347396: Efficient TypeFunc creations [v7]

[Dean Long]

On Thu, 5 Feb 2026 08:54:12 GMT, Harshit470250 <duke at openjdk.org> wrote:

>> This PR do similar changes done by [JDK-8330851](https://bugs.openjdk.org/browse/JDK-8330851) on the GC TypeFunc creation as suggested by [JDK-8347396](https://bugs.openjdk.org/browse/JDK-8347396). As discussed in [https://github.com/openjdk/jdk/pull/21782#discussion_r1906535686,](https://github.com/openjdk/jdk/pull/21782#discussion_r1906535686) I have put guard on the shenandoah gc specific part of the code.
>
> Harshit470250 has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - change name of init call
>  - define shenandoah make_barrier_Type_init

Marked as reviewed by dlong (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/27279#pullrequestreview-3759718643