[code-reflection] Integrated: added some experiments for testing JavaCodeBuilder and Txfmr

[Gary Frost]

On Mon, 29 Dec 2025 15:41:51 GMT, Gary Frost <gfrost at openjdk.org> wrote:

> Some experiments for testing txfmr. 
> 
> Also moved JavaHATCodeBuilder from tools.  It needs reparenting but is useful for debugging
> 
> Found a bug in Txfmr which was stopping us from chaining transformations that removed ops.

This pull request has now been integrated.

Changeset: 0bc4f1f3
Author:    Gary Frost <gfrost at openjdk.org>
URL:       https://git.openjdk.org/babylon/commit/0bc4f1f3e955638aceb3cc9042ad7087dc2e3e1c
Stats:     588 lines in 10 files changed: 404 ins; 124 del; 60 mod

added some experiments for testing JavaCodeBuilder and Txfmr

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PR: https://git.openjdk.org/babylon/pull/795