* check (see [checkSessionsMarkedInvalid]) and should be skipped.
     */
    protected open fun shouldSkipValidityCheck(session: SESSION): Boolean = false

    override fun doTest(testServices: TestServices) {
        val ktModules = testServices.ktTestModuleStructure.mainModules.map { it.ktModule }

     * sessions may have been evicted from the cache and should not be checked for validity.
     */
    override fun shouldSkipValidityCheck(session: KaSession): Boolean =
        when (modificationEventKind) {
            KotlinModificationEventKind.GLOBAL_SOURCE_MODULE_STATE_MODIFICATION,