[Test] Migrate tests in ':compiler:ir:ir.validation' to JUnit5

Author: ddolovov

compiler/ir/ir.validation/build.gradle.kts

@@ -2,10 +2,11 @@ plugins {
     kotlin("jvm")
     id("jps-compatible")
     id("test-inputs-check")
+    id("project-tests-convention")
 }
 
-tasks.test {
-    useJUnitPlatform()
+projectTests {
+    testTask(jUnitMode = JUnitMode.JUnit5)
 }
 
 dependencies {
@@ -19,7 +20,8 @@ dependencies {
 
     compileOnly(intellijCore())
 
-    testImplementation(project.kotlinTest("junit5"))
+    testImplementation(libs.junit.jupiter.api)
+    testRuntimeOnly(libs.junit.jupiter.engine)
     testRuntimeOnly(testFixtures(project(":compiler:tests-common-new")))
     testImplementation(project(":compiler:ir.backend.common"))
 }

compiler/ir/ir.validation/test/org/jetbrains/kotlin/ir/validation/IrValidatorTest.kt

@@ -44,8 +44,12 @@ import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.name.SpecialNames
 import org.jetbrains.kotlin.storage.LockBasedStorageManager
 import org.jetbrains.kotlin.types.Variance
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.fail
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.assertThrows
 import kotlin.reflect.KProperty
-import kotlin.test.*
 
 class IrValidatorTest {
 
@@ -55,7 +59,7 @@ class IrValidatorTest {
         .withAllChecks()
         .withInlineFunctionCallsiteCheck { it.symbol.owner.name.toString() != "inlineFunctionUseSiteNotPermitted" }
 
-    @BeforeTest
+    @BeforeEach
     fun setUp() {
         messageCollector = MessageCollectorImpl()
 
@@ -147,7 +151,7 @@ class IrValidatorTest {
 
     private inline fun runValidationAndAssert(mode: IrVerificationMode, block: () -> Unit) {
         if (mode == IrVerificationMode.ERROR) {
-            assertFailsWith<IrValidationException>(block = block)
+            assertThrows<IrValidationException>(executable = block)
         } else {
             block()
         }