JS: make tests dependent on primitive array is checks pass even when -Xtypedarray is disabled (related: KT-17137)

compiler/testData/codegen/box/arrays/arrayInstanceOf.kt

@@ -1,5 +1,3 @@
-// IGNORE_BACKEND_WITHOUT_CHECK: JS
-
 //test [], get and iterator calls
 fun test(createIntNotLong: Boolean): String {
     val a = if (createIntNotLong) IntArray(5) else LongArray(5)
@@ -24,5 +22,8 @@ fun test(createIntNotLong: Boolean): String {
 }
 
 fun box(): String {
+    // Only run this test if primitive array `is` checks work (KT-17137)
+    if ((intArrayOf() as Any) is Array<*>) return "OK"
+
     return test(true) + test(false)
 }