JS: move more test to box tests

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

@@ -0,0 +1,16 @@
+package foo
+
+val top = "TOP LEVEL"
+
+fun box(): String {
+    // Does't work in Rhino, but should.
+    // val v = 1
+    // assertEquals(3, eval("v + 2"))
+
+    assertEquals(5, eval("3 + 2"))
+
+    val PACKAGE = "kotlin.modules.JS_TESTS.foo"
+    assertEquals(top, eval("$PACKAGE.top"))
+
+    return "OK"
+}