JS: move more test to box tests

js/js.translator/testData/box/trait/classDerivesFromTraitAndClass.kt

@@ -0,0 +1,21 @@
+package foo
+
+
+open class A() {
+    val value = "O"
+}
+
+interface Test {
+    fun addFoo(s: String): String {
+        return s + "K"
+    }
+}
+
+
+class B() : Test, A() {
+    fun eval(): String {
+        return addFoo(value);
+    }
+}
+
+fun box() = B().eval()