Test fix: java6 doesn't throw on invalid AbstractMutableList.addAll index

If the collection of elements to be added is empty, java6 implementation
of AbstractMutableList.addAll doesn't throw on invalid index.

The failing test was introduced in 59031543e2
which fixed #KT-47211.

libraries/stdlib/test/collections/AbstractCollectionsTest.kt

@@ -6,6 +6,7 @@
 package test.collections
 
 import test.collections.behaviors.*
+import test.testOnNonJvm6And7
 import kotlin.test.*
 
 class AbstractCollectionsTest {
@@ -127,7 +128,9 @@ class AbstractCollectionsTest {
 
         assertEquals(listOf("ok", "element"), list)
 
-        assertFailsWith<IndexOutOfBoundsException> { list.addAll(-1, listOf()) }
+        testOnNonJvm6And7 {
+            assertFailsWith<IndexOutOfBoundsException> { list.addAll(-1, listOf()) }
+        }
 
         compare(list.storage, list) {
             listBehavior()