JS: move more test to box tests

js/js.translator/testData/box/objectDeclaration/objectInheritingFromATrait.kt

@@ -0,0 +1,25 @@
+package foo
+
+interface Foo {
+    fun execute(handler: () -> Unit) {
+        execute(false, handler)
+    }
+
+    fun execute(onlyIfAttached: Boolean, handler: () -> Unit)
+}
+
+object foo : Foo {
+    override fun execute(onlyIfAttached: Boolean, handler: () -> Unit) {
+        handler()
+    }
+}
+
+private var result = "fail"
+
+fun box(): String {
+    foo.execute() {
+        result = "OK"
+    }
+
+    return result
+}