JS: move more test to box tests

js/js.translator/testData/box/native/inheritanceFromNativeTrait.kt

@@ -0,0 +1,42 @@
+package foo
+
+@native
+interface NativeTrait {
+    val foo: String
+    fun bar(a: Int): Any
+
+    @native("boo")
+    fun baz(): String
+}
+
+interface Trait : NativeTrait
+
+class Class : NativeTrait {
+    override val foo: String = "Class().foo"
+    override fun bar(a: Int): Any = "Class().bar($a)"
+    override fun baz(): String = "Class().boo()"
+}
+
+class AnotherClass : Trait {
+    override val foo: String = "AnotherClass().foo"
+    override fun bar(a: Int): Any = "AnotherClass().bar($a)"
+    override fun baz(): String = "AnotherClass().boo()"
+}
+
+fun <T : NativeTrait> test(c: T, className: String) {
+    assertEquals("$className().foo", c.foo)
+    assertEquals("$className().bar(3)", c.bar(3))
+    assertEquals("$className().boo()", c.baz())
+
+    val t: NativeTrait = c
+    assertEquals("$className().foo", t.foo)
+    assertEquals("$className().bar(3)", t.bar(3))
+    assertEquals("$className().boo()", t.baz())
+}
+
+fun box(): String {
+    test(Class(), "Class")
+    test(AnotherClass(), "AnotherClass")
+
+    return "OK"
+}