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用Unity 2020.3.33+Win64，在最新的hybridclr_trial工程中，修改 CreateByCode.cs 可复现：

public class CreateByCode : MonoBehaviour
{
    private void Awake()
    {
        A();
    }

    // Start is called before the first frame update
    void Start()
    {
        Debug.Log("这个脚本是通过代码AddComponent直接创建的");

        A();
    }

    // Update is called once per frame
    void Update()
    {
        
    }

    private void A()
    {
        B();
    }

    private void B()
    {
        Debug.LogError("Test");
    }
}

编辑器内的输出：

Test
UnityEngine.Debug:LogError (object)
CreateByCode:B () (at Assets/HotUpdate/CreateByCode.cs:33)
CreateByCode:A () (at Assets/HotUpdate/CreateByCode.cs:28)
CreateByCode:Start () (at Assets/HotUpdate/CreateByCode.cs:17)

Win64打包版本的输出：

Test

UnityEngine.Debug.LogError (Object)

可以在各分支的README中添加一下该分支的版本适用范围

We're encountering the following il2cpp crash bug that was introduced in Unity 2021.3.12 and fixed in 2021.3.16:
https://issuetracker.unity3d.com/issues/build-crashes-on-il2cpp-vm-class-getvirtualmethod-when-building-and-running-a-project-using-il2cpp-scripting-backend

This happens if you make a Development Build with Script Debugging enabled. The crash occurs because of a missing NULL check in the following function.
[il2cpp\libil2cpp\vm\Class.cpp:2242] il2cpp::vm::Class::GetVirtualMethod()

Unity added the NULL check back in 2031.3.16, but the latest version of Class.cpp in the il2cpp_plus repository is based on the 2021.3.14 version with the bug. Merging Unity's changes back into il2cpp_plus would be helpful.