JS: move expressions test to box tests

js/js.translator/testData/box/dynamic/_common.js

@@ -0,0 +1,34 @@
+var bar = {
+    boo: function (a) {
+        return "bar.boo(" + a + ")";
+    },
+    invoke: function () {
+        return renderInvocation("bar.invoke", arguments)
+    },
+    num: 42,
+    str: "ok!",
+    obj: {
+        name: "bar.obj"
+    },
+    1: {
+        one: "1.one"
+    },
+    5: 0,
+    0 : "zero",
+    get: function(a, b, c) {
+        return renderInvocation("bar.get", arguments)
+    },
+    set: function(a, b, c) {
+        return renderInvocation("bar.set", arguments)
+    }
+};
+
+var arr = [{ it : "is", 1 : "object" }, 65, undefined, -2, "Yo!"];
+
+function baz() {
+    return renderInvocation("baz", arguments)
+}
+
+function renderInvocation(prefix, args) {
+    return prefix + "(" + Array.prototype.slice.call(args) + ")"
+}