[code-reflection] RFR: Ensure HAT executes with Babylon JDK images build

[Maurizio Cimadamore]

On Tue, 18 Nov 2025 18:51:35 GMT, Paul Sandoz <psandoz at openjdk.org> wrote:

> HAT only executes correctly with a Babylon JDK exploded build, and fails with an images build.
> 
> We need to declare the runtime argument `--add-modules jdk.incubator.code`.
> 
> Also removed an `--add-exports` argument which no longer seems to be required.

Marked as reviewed by mcimadamore (Reviewer).

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PR Review: https://git.openjdk.org/babylon/pull/684#pullrequestreview-3481999248