[code-reflection] Integrated: Block.Reference implements CodeItem

[Paul Sandoz]

On Thu, 3 Jul 2025 16:50:10 GMT, Paul Sandoz <psandoz at openjdk.org> wrote:

> `Block.Reference` implements `CodeItem`, thereby all items in a code model share the same top type.

This pull request has now been integrated.

Changeset: 03e030d4
Author:    Paul Sandoz <psandoz at openjdk.org>
URL:       https://git.openjdk.org/babylon/commit/03e030d4d80f71f76418e61b2b42017130f1375a
Stats:     2 lines in 2 files changed: 0 ins; 0 del; 2 mod

Block.Reference implements CodeItem

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PR: https://git.openjdk.org/babylon/pull/478