8015945: loadWithNewGlobal return value has to be properly wrapped

Reviewed-by: lagergren, hannesw

nashorn/test/script/basic/JDK-8015945.js

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ * 
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ * 
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ * 
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ * 
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * JDK-8015945: loadWithNewGlobal return value has to be properly wrapped
+ *
+ * @test
+ * @option -scripting
+ * @run
+ */
+
+var global = loadWithNewGlobal({ name: "<code>",
+    script: <<EOF
+
+function squares() {
+    var res = new Array(arguments.length);
+    for (var i in arguments) {
+        res[i] = arguments[i]*arguments[i]
+    }
+    return res;
+}
+
+this;
+
+EOF
+})
+
+print("global an Object? " + (global instanceof Object));
+var res = global.squares(2, 3, 4, 5);
+print("global.squares returns Array? " + (res instanceof Array));
+// still can access array index properties and length
+print("result length " + res.length);
+for (var i in res) {
+    print(i + " = " + res[i]);
+}