return true

	case TARRAY:
		// Array of 1 direct iface type can be direct.
		return t.NumElem() == 1 && IsDirectIface(t.Elem())

	case TSTRUCT:
		// Struct with 1 field of direct iface type can be direct.
		return t.NumFields() == 1 && IsDirectIface(t.Field(0).Type)
	}

	return false
}

// IsInterfaceMethod reports whether (field) m is
// an interface method. Such methods have the