git: openjdk/babylon: code-reflection: Move OpBuilder to internal package.

[Paul Sandoz]

Changeset: b6f0fb10
Branch: code-reflection
Author:    Paul Sandoz <psandoz at openjdk.org>
Date:      2025-06-26 18:24:51 +0000
URL:       https://git.openjdk.org/babylon/commit/b6f0fb10a1a1b34fd34b8748238461fade1c9303

Move OpBuilder to internal package.

= src/jdk.incubator.code/share/classes/jdk/incubator/code/internal/OpBuilder.java
! src/jdk.incubator.code/share/classes/jdk/incubator/code/internal/ReflectMethods.java
! test/jdk/java/lang/reflect/code/writer/TestCodeBuilder.java