Refactor and fixes in source input model

[ArcturusZhang]

Description

Since we have quite a few attributes to pass around, this PR introduces a new class to have them all.

This PR also fixes a key conflicts when a member has both serialization attributes (CodeGenMemberSerialization and CodeGenMemberSerializationHooks)

Checklist

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[ArcturusZhang]

The changes in the regen is the same as the changes in the auto PR triggered on feature/v3