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

^KT-65979

compiler/testData/codegen/box/bce/customGetter.kt

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2010-2021 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.
+ */
+// KT-66100: AssertionError: Expected an exception of class IndexOutOfBoundsException to be thrown, but was completed successfully.
+// IGNORE_BACKEND: JS_IR, JS_IR_ES6
+// WITH_STDLIB
+import kotlin.test.*
+
+var needSmallArray = true
+
+val array: Array<Int> = arrayOf(1)
+    get() = if (needSmallArray) field else arrayOf(1, 2, 3)
+
+fun box(): String {
+    val a = array
+    needSmallArray = false
+    assertFailsWith<IndexOutOfBoundsException> {
+        for (index in 0 until array.size) {
+            a[index] = 6
+        }
+    }
+
+    return "OK"
+}