Make BlackBox tests for Java 9 generated

compiler/tests-common/tests/org/jetbrains/kotlin/codegen/AbstractJdk9BlackBoxCodegenTest.kt

@@ -0,0 +1,16 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.codegen
+
+import org.jetbrains.kotlin.test.KotlinTestUtils
+import org.jetbrains.kotlin.test.TestJdkKind
+import java.io.File
+
+abstract class AbstractJdk9BlackBoxCodegenTest : AbstractCustomJDKBlackBoxCodegenTest() {
+    override fun getTestJdkKind(): TestJdkKind = TestJdkKind.FULL_JDK_9
+    override fun getJdkHome(): File = KotlinTestUtils.getJdk9Home()
+    override fun getPrefix(): String = "java9/box"
+}