Needs of feature that disabling optimization pipeline in runtime

@iritkatriel
This feature is needed for debugging or experimentation when handling optimized bytecode.
When I want to take a look at the sequence of bytecodes that is optimized with the specific pipeline but not all pipelines, I need to disable several pipelines from https://github.com/python/cpython/blob/30b4e9f9c42493136c58c56fee5553128bb32428/Python/flowgraph.c#L1843-L1851 and rebuild the CPython it's pretty painful because when I want to change the combination of optimization than I should rebuild CPython every time.

It would be great if there is a way to disable specific optimization pipelines at runtime when I want.
Above example is just one specific case and sometime I want to disable all _PyCfg_OptimizeCodeUnit or part of _PyCfg_OptimizeCodeUnit.

This is what I wanted to ask about at the PyCon and will happy to see your opinion about this.

Python/flowgraph.c の、issue で参照されている _PyCfg_OptimizeCodeUnit パイプラインから始め、実行時にその最適化ステージがどのように選択されるかを追跡します。CPython を再ビルドせずに特定のステージまたはパイプライン全体を無効化する方法を定義し、その後、要求どおりに異なる最適化の組み合わせを検査できることを確認します。