False positive RECS0154 on expression boiled constructors, methods etc

[HeikoAdams]

If a constructor or method is expression boiled RECS0154 is raised even if the parameter is used.

The following code raises a false positive RECS0154 for the parameter textbox:

public TextBoxWriter(System.Windows.Forms.TextBoxBase textBox) => this.textBox = textBox ?? throw new NullReferenceException();