[K/JS TESTS] Migrate generating and running of invalidation tests to JUnit 5

compiler/cli/cli-base/src/org/jetbrains/kotlin/cli/jvm/compiler/KotlinCoreEnvironment.kt

@@ -466,6 +466,17 @@ class KotlinCoreEnvironment private constructor(
             return KotlinCoreEnvironment(projectEnv, configuration, extensionConfigs)
         }
 
+        @TestOnly
+        @JvmStatic
+        fun createForParallelTests(
+            parentDisposable: Disposable, initialConfiguration: CompilerConfiguration, extensionConfigs: EnvironmentConfigFiles
+        ): KotlinCoreEnvironment {
+            val configuration = initialConfiguration.copy()
+            val appEnv = getOrCreateApplicationEnvironmentForTests(parentDisposable, configuration)
+            val projectEnv = ProjectEnvironment(parentDisposable, appEnv, configuration)
+            return KotlinCoreEnvironment(projectEnv, configuration, extensionConfigs)
+        }
+
         @TestOnly
         @JvmStatic
         fun createForTests(