Fix searching for private methods in base classes

Author: arimger

Assets/Editor Toolbox/Editor/Utilities/ReflectionUtility.cs

@@ -40,11 +40,31 @@ internal static MethodInfo GetObjectMethod(string methodName, BindingFlags bindi
             }
 
             var targetType = targetObjects[0].GetType();
-            var methodInfo = targetType.GetMethod(methodName,
-                bindingFlags, null, CallingConventions.Any, new Type[0], null);
+            var methodInfo = GetObjectMethod(targetType, methodName, bindingFlags);
+            if (methodInfo == null && bindingFlags.HasFlag(BindingFlags.NonPublic))
+            {
+                //NOTE: if a method is not found and we searching for a private method we should look into parent classes
+                var baseType = targetType.BaseType;
+                while (baseType != null)
+                {
+                    methodInfo = GetObjectMethod(baseType, methodName, bindingFlags);
+                    if (methodInfo != null)
+                    {
+                        break;
+                    }
+
+                    baseType = baseType.BaseType;
+                }
+            }
+
             return methodInfo;
         }
 
+        internal static MethodInfo GetObjectMethod(Type targetType, string methodName, BindingFlags bindingFlags)
+        {
+            return targetType.GetMethod(methodName, bindingFlags, null, CallingConventions.Any, new Type[0], null);
+        }
+
         /// <summary>
         /// Tries to invoke parameterless method located in associated <see cref="Object"/>s.
         /// </summary>