[code-reflection] Integrated: Allow hat.java run to pass -DXXXX options when running

[Gary Frost]

On Wed, 17 Sep 2025 12:28:03 GMT, Gary Frost <gfrost at openjdk.org> wrote:

> This allows us to pass HAT options and also other properties when running via `java -cp hat/job.jar run ....`
> 
> For example 
> 
>                       run ffi-opencl mandel
>                       run ffi-opencl nbody 4096
>                       run ffi-opencl -DHAT=SHOW_CODE  -DbufferTagging=true nbody 4096
>                       run ffi-opencl -DHAT=SHOW_KERNEL_MODEL heal
>                       run ffi-opencl -DHAT=MINIMIZE_BUFFERS life
>  ```
>  
> Note that configs are initialized from env HAT or from HAT property.  This has always been the case, but has not been documented 
>  
>  So 
>  ```
>    run ffi-opencl -DHAT=SHOW_KERNEL_MODEL heal
>  ```
>  is equiv of 
>  ```
>   HAT=SHOW_KERNEL_MODEL  run ffi-opencl  heal
>   ```

This pull request has now been integrated.

Changeset: d3561b7d
Author:    Gary Frost <gfrost at openjdk.org>
URL:       https://git.openjdk.org/babylon/commit/d3561b7dec7d2b4bdba24fa1bdead26620e66ce1
Stats:     26 lines in 1 file changed: 14 ins; 8 del; 4 mod

Allow hat.java run to pass -DXXXX options when running

-------------

PR: https://git.openjdk.org/babylon/pull/574