Michael Goderbauer 1c90ed8b64

Fix structure of pkg:integration_test (#137283) ...

The private _ libraries should not be advertised as importable. Moving them to the src directory.

I noticed this while browsing our dart docs. This should remove the underscore entries.

![image](https://github.com/flutter/flutter/assets/1227763/41511efe-4eb8-487a-9758-ccde1720e05a)

Replaces https://github.com/flutter/flutter/pull/137197.

2023-10-25 20:24:15 +00:00

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_callback_io.dart

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_callback_web.dart

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_extension_io.dart

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_extension_web.dart

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callback.dart

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channel.dart

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extension.dart

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