[Tests] Migrate backend-independent tests from native to compiler/testData.

^KT-65979

compiler/testData/codegen/box/cycles/cycle.kt

@@ -0,0 +1,22 @@
+/*
+ * Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+// WITH_STDLIB
+
+import kotlin.test.*
+
+fun cycle(cnt: Int): Int {
+  var sum = 1
+  while (sum == cnt) {
+    sum = sum + 1
+  }
+  return sum
+}
+
+fun box(): String {
+  assertEquals(2, cycle(1))
+  assertEquals(1, cycle(0))
+
+  return "OK"
+}

compiler/testData/codegen/box/cycles/cycle_do.kt

@@ -0,0 +1,22 @@
+/*
+ * Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+// WITH_STDLIB
+
+import kotlin.test.*
+
+fun cycle_do(cnt: Int): Int {
+  var sum = 1
+  do {
+    sum = sum + 2
+  } while (sum == cnt)
+  return sum
+}
+
+fun box(): String {
+  assertEquals(5, cycle_do(3))
+  assertEquals(3, cycle_do(0))
+
+  return "OK"
+}

compiler/testData/codegen/box/cycles/cycle_for.kt

@@ -0,0 +1,21 @@
+/*
+ * Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+// WITH_STDLIB
+
+import kotlin.test.*
+
+fun cycle_for(arr: Array<Int>) : Int {
+  var sum = 0
+  for (i in arr) {
+    sum += i
+  }
+  return sum
+}
+
+fun box(): String {
+  assertEquals(6, cycle_for(Array(4, init = { it })))
+
+  return "OK"
+}