[code-reflection] Integrated: Refactored MemoryPhases to innerclasses

[Gary Frost]

On Tue, 21 Oct 2025 11:58:04 GMT, Gary Frost <gfrost at openjdk.org> wrote:

> More phase transform refactoring. 
> 
> Re-establishing a pattern where we lean on switches over instance patterns (and inheritance) for phases and ops.

This pull request has now been integrated.

Changeset: 9baa108f
Author:    Gary Frost <gfrost at openjdk.org>
URL:       https://git.openjdk.org/babylon/commit/9baa108f44555bfa817dfcbac05b3e34f0151bbe
Stats:     426 lines in 10 files changed: 129 ins; 229 del; 68 mod

Refactored MemoryPhases to innerclasses

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PR: https://git.openjdk.org/babylon/pull/626