[code-reflection] Integrated: Some HAT cleanups

[Paul Sandoz]

On Fri, 14 Jun 2024 20:23:01 GMT, Paul Sandoz <psandoz at openjdk.org> wrote:

> - Fix hatrun.sh to use the correct paths (i think they are corrected, and verified for my local build)
> - Enhance  CMakeLists.txt to check if BEEHIVE env is set, so as not to hardcode the location
> - Use more idiomatic code model APIs (some added based on HAT feedback)

This pull request has now been integrated.

Changeset: 151840bf
Author:    Paul Sandoz <psandoz at openjdk.org>
URL:       https://git.openjdk.org/babylon/commit/151840bf8b8ff34482c4bd8316204bac5f67d676
Stats:     45 lines in 10 files changed: 5 ins; 18 del; 22 mod

Some HAT cleanups

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PR: https://git.openjdk.org/babylon/pull/141