Switch off logging for failing IrBlackBox tests

Logging of tests that are expected to fail is controlled by
kotlin.suppress.expected.test.failures project property.

compiler/tests/org/jetbrains/kotlin/codegen/Java9CodegenTest.kt

@@ -25,7 +25,7 @@ class Java9CodegenTest : AbstractBlackBoxCodegenTest() {
 
     override fun getPrefix(): String = "java9/box"
 
-    override fun blackBox() {
+    override fun blackBox(reportFailures: Boolean) {
         val tmpdir = KotlinTestUtils.tmpDirForTest(this)
         generateClassesInFile().writeAll(tmpdir, null)
 
@@ -49,6 +49,6 @@ class Java9CodegenTest : AbstractBlackBoxCodegenTest() {
 
     fun testVarHandle() {
         loadFile()
-        blackBox()
+        blackBox(true)
     }
 }