RFR: 8366837: Clean up gensrc by spp.Spp

[Philip Race]

Looks like it broke all the builds. So a P1 backout is needed.

-phil.

On 9/8/25 11:27 AM, Alan Bateman wrote:
> On Mon, 8 Sep 2025 18:06:54 GMT, Chen Liang <liach at openjdk.org> wrote:
>
>> This patch removed the `VARHANDLES_GENSRC_DIR` variable used by VarHandleGuards generation. I think it can be addressed by a hot fix.
> I think the change needs to backed out and the differences with line numbers checked to see what impact it will have on stack traces and mapping it back to the sources in the template files.
>
> -------------
>
> PR Comment: https://git.openjdk.org/jdk/pull/27078#issuecomment-3267427085