Place in Unity project to call OnScriptReloaded() on any object when scripts reload.

UnityScriptReloadBroadcast.cs

using UnityEngine;
using System.Reflection;

public class ScriptReloadBroadcast
{
#if UNITY_EDITOR 
    [UnityEditor.Callbacks.DidReloadScripts]
    static void OnScriptsReloaded()
    {
        var flags =
            BindingFlags.Public |
            BindingFlags.Instance |
            BindingFlags.FlattenHierarchy;

        var func = Application.isPlaying ? "OnScriptReload" : "OnScriptReloadEditor";

        var objects = GameObject.FindObjectsOfType<GameObject>();

        foreach (var obj in objects)
        {
            var components = obj.GetComponents<Component>();

            foreach (var com in components)
            {
                var type = com.GetType();
                var method = type.GetMethod(func, flags);

                if (method != null)
                {
                    method.Invoke(com, null);
                }
            }
        }
    }
#endif
}