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

^KT-65979

compiler/testData/codegen/box/function/defaults3.kt

@@ -0,0 +1,19 @@
+/*
+ * 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.
+ */
+
+fun foo(a:Int = 2, b:String = "Hello", c:Int = 4):String = "$b-$c$a"
+fun foo(a:Int = 3, b:Int = a + 1, c:Int = a + b) = a + b + c
+
+fun box(): String {
+    val a = foo(b="Universe")
+    if (a != "Universe-42")
+        throw Error()
+
+    val b = foo(b = 5)
+    if (b != (/* a = */ 3 + /* b = */ 5 + /* c = */ (3 + 5)))
+        throw Error()
+
+    return "OK"
+}