private
    fun inaccessibilityReasonsFor(className: String): List<InaccessibilityReason> =
        accessibilityInfoFor(className).inaccessibilityReasons

    private
    fun hasTypeParameter(className: String) =
        accessibilityInfoFor(className).hasTypeParameter

    private
    fun accessibilityInfoFor(className: String): TypeAccessibilityInfo =
        typeAccessibilityInfoPerClass.computeIfAbsent(className) {