Revert "Clean up test skips after KT-17137"

This reverts commit 715d5e9

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

@@ -22,5 +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)
 }

compiler/testData/codegen/box/arrays/kt2997.kt

@@ -53,6 +53,9 @@ fun foo(a: Any): Int {
 }
 
 fun box(): String {
+    // Only run this test if primitive array `is` checks work (KT-17137)
+    if ((intArrayOf() as Any) is Array<*>) return "OK"
+
     val iA = IntArray(1)
     if (foo(iA) != 1) return "fail int[]"
     val sA = ShortArray(1)

compiler/testData/codegen/box/arrays/kt7288.kt

@@ -21,6 +21,9 @@ fun test(b: 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"
+
     if (test(true) != "OK") return "fail 1: ${test(true)}"
 
     if (test(false) != "OK") return "fail 1: ${test(false)}"

compiler/testData/codegen/box/ranges/forInIndices/kt13241_Array.kt

@@ -13,6 +13,9 @@ fun test(x: Any): Int {
 }
 
 fun box(): String {
+    // Only run this test if primitive array `is` checks work (KT-17137)
+    if ((intArrayOf() as Any) is Array<*>) return "OK"
+
     assertEquals(123, test(intArrayOf(0, 0, 0, 0)))
     return "OK"
 }