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

^KT-65979

compiler/testData/codegen/box/initializers/static_varargChange.kt

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+// KT-66090
+// IGNORE_BACKEND: JS_IR, JS_IR_ES6
+// WITH_STDLIB
+
+import kotlin.test.*
+
+fun box(): String {
+    fun varargGetter(position:Int, vararg x: Int): Int {
+        x[position] *= 5;
+        return x[position]
+    }
+
+    repeat(3) {
+        assertEquals(10, varargGetter(0, 2, 3, 4))
+        assertEquals(10, varargGetter(0, 2, 3, 4))
+        assertEquals(15, varargGetter(1, 2, 3, 4))
+        assertEquals(15, varargGetter(1, 2, 3, 4))
+        assertEquals(20, varargGetter(2, 2, 3, 4))
+        assertEquals(20, varargGetter(2, 2, 3, 4))
+        // the following assert might fail on Kotlin/WASM
+        assertFailsWith<IndexOutOfBoundsException> { varargGetter(3, 2, 3, 4) }
+    }
+
+    return "OK"
+}