Migrate boxWithJava tests to multi-file framework

compiler/testData/codegen/boxWithJava/properties/companionObjectProperties.kt

@@ -0,0 +1,49 @@
+// FILE: Test.java
+
+class Test {
+    String test() {
+        String s;
+
+        s = Klass.NAME;
+        if (!s.equals("Klass")) throw new AssertionError("Fail class: " + s);
+
+        s = Klass.JVM_NAME;
+        if (!s.equals("JvmKlass")) throw new AssertionError("Fail jvm class: " + s);
+
+        s = Trait.NAME;
+        if (!s.equals("Trait")) throw new AssertionError("Fail interface: " + s);
+
+        s = Enoom.NAME;
+        if (!s.equals("Enum")) throw new AssertionError("Fail enum: " + s);
+
+        s = Enoom.JVM_NAME;
+        if (!s.equals("JvmEnum")) throw new AssertionError("Fail jvm enum: " + s);
+
+        return "OK";
+    }
+}
+
+// FILE: test.kt
+
+class Klass {
+    companion object {
+        const val NAME = "Klass"
+        @JvmField val JVM_NAME = "JvmKlass"
+    }
+}
+
+interface Trait {
+    companion object {
+        const val NAME = "Trait"
+    }
+}
+
+enum class Enoom {
+    ;
+    companion object {
+        const val NAME = "Enum"
+        @JvmField val JVM_NAME = "JvmEnum"
+    }
+}
+
+fun box() = Test().test()