Use new kotlin.io.path API in tests

plugins/jvm-abi-gen/test/org/jetbrains/kotlin/jvm/abi/BaseJvmAbiTest.kt

@@ -10,14 +10,16 @@ import org.jetbrains.kotlin.cli.common.ExitCode
 import org.jetbrains.kotlin.cli.jvm.K2JVMCompiler
 import org.jetbrains.kotlin.config.Services
 import java.io.File
+import kotlin.io.path.ExperimentalPathApi
+import kotlin.io.path.createTempDirectory
 
 abstract class BaseJvmAbiTest : TestCase() {
     private lateinit var workingDir: File
 
+    @OptIn(ExperimentalPathApi::class)
     override fun setUp() {
         super.setUp()
-        workingDir = createTempDir(javaClass.simpleName)
-        workingDir.deleteOnExit()
+        workingDir = createTempDirectory(javaClass.simpleName).toFile().apply { deleteOnExit() }
     }
 
     override fun tearDown() {

plugins/scripting/scripting-compiler/tests/org/jetbrains/kotlin/scripting/compiler/test/CompileTimeFibonacciTest.kt

@@ -21,6 +21,8 @@ import org.jetbrains.kotlin.test.KotlinTestUtils
 import org.jetbrains.kotlin.test.TestJdkKind
 import org.junit.Assert
 import java.io.File
+import java.nio.file.Files
+import kotlin.io.path.*
 import kotlin.script.experimental.annotations.KotlinScript
 import kotlin.script.experimental.api.*
 import kotlin.script.experimental.host.ScriptingHostConfiguration
@@ -160,7 +162,7 @@ object CompileTimeFibonacciConfiguration : ScriptCompilationConfiguration(
                     .mapIndexed { index, number -> "val FIB_${index + 1} = $number" }
                     .joinToString("\n")
 
-                val file = createTempFile("CompileTimeFibonacci", ".fib.kts")
+                val file = Files.createTempFile("CompileTimeFibonacci", ".fib.kts").toFile()
                     .apply {
                         deleteOnExit()
                         writeText(sourceCode)

plugins/scripting/scripting-ide-services-test/build.gradle.kts

@@ -18,6 +18,7 @@ val embeddableTestRuntime by configurations.creating {
 
 dependencies {
     allTestsRuntime(commonDep("junit"))
+    testCompile(kotlinStdlib("jdk8"))
     testCompile(project(":kotlin-scripting-ide-services-unshaded"))
     testCompile(project(":kotlin-scripting-compiler"))
     testCompile(project(":kotlin-scripting-dependencies"))

plugins/scripting/scripting-ide-services-test/test/org/jetbrains/kotlin/scripting/ide_services/JvmReplTest.kt

@@ -14,6 +14,7 @@ import org.jetbrains.kotlin.cli.jvm.K2JVMCompiler
 import org.jetbrains.kotlin.config.Services
 import org.jetbrains.kotlin.scripting.ide_services.test_util.*
 import java.io.File
+import kotlin.io.path.*
 import kotlin.script.experimental.api.*
 import kotlin.script.experimental.jvm.impl.KJvmCompiledScript
 import kotlin.script.experimental.jvm.jvm
@@ -318,14 +319,15 @@ class JvmIdeServicesTest : TestCase() {
             }
     }
 
+    @OptIn(ExperimentalPathApi::class)
     companion object {
         private const val MODULE_PATH = "plugins/scripting/scripting-ide-services-test"
-        private val outputJarDir = createTempDir("temp-ide-services").toPath()
+        private val outputJarDir = createTempDirectory("temp-ide-services")
 
         private data class CliCompilationResult(val exitCode: ExitCode, val outputJarPath: String)
 
         private fun compileFile(inputKtFileName: String, outputJarName: String): CliCompilationResult {
-            val jarPath = outputJarDir.resolve(outputJarName).toAbsolutePath().toString().replace('\\', '/')
+            val jarPath = outputJarDir.resolve(outputJarName).toAbsolutePath().invariantSeparatorsPath
 
             val compilerArgs = arrayOf(
                 "$MODULE_PATH/testData/$inputKtFileName",