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

^KT-65979

compiler/testData/codegen/box/object/fields1.kt

@@ -0,0 +1,24 @@
+/*
+ * 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.*
+
+class B(val a:Int, b:Int) {
+    constructor(pos:Int):this(1, pos) {}
+    val pos = b + 1
+}
+
+fun primaryConstructorCall(a:Int, b:Int) = B(a, b).pos
+
+fun secondaryConstructorCall(a:Int) = B(a).pos
+
+fun box(): String {
+    assertEquals(42, primaryConstructorCall(0xdeadbeef.toInt(), 41))
+    assertEquals(42, secondaryConstructorCall(41))
+
+    return "OK"
+
+}