IJPL-214109 rdct-test: Add tests for file-based settings sync

Also, replace PreCleanupType and postCleanupLauncher with PreRunHandler and PostRunHandler to allow executing custom code before the IDE process is started and after it's stopped in DistributedProjectTestBase.withServerAndClients.

GitOrigin-RevId: b307fa69006a8926f98927e4be51a837019d5b79

build/launch/src/com/intellij/tools/launch/PathsProvider.kt

@@ -24,6 +24,9 @@ interface PathsProvider {
   val configFolder: File
     get() = launcherFolder.resolve("config")
 
+  val configBackupFolder: File
+    get() = launcherFolder.resolve("config-backup")
+
   val systemFolder: File
     get() = launcherFolder.resolve("system")
 

platform/remote-driver/test-sdk/src/com/intellij/driver/sdk/ui/components/elements/JCheckBoxUi.kt

@@ -18,6 +18,8 @@ fun Finder.checkBox(@Language("xpath") xpath: String? = null) = x(xpath ?: "//di
 
 fun Finder.checkBox(locator: QueryBuilder.() -> String) = x(JCheckBoxUi::class.java) {locator()}
 
+fun Finder.checkBoxWithName(name: String) = x(JCheckBoxUi::class.java) { byAccessibleName(name) }
+
 class JCheckBoxUi(data: ComponentData) : UiComponent(data) {
   private val checkboxComponent by lazy { driver.cast(component, JCheckBox::class) }