Implementing [[Construct]] of built-in Function object.

JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan r.ayrapetyan@samsung.com

tests/jerry/function_construct.js

@@ -0,0 +1,81 @@
+// Copyright 2015 Samsung Electronics Co., Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+var f = new Function ('');
+assert (f () === undefined);
+
+var f = new Function ('"use strict"; f = undefined;');
+assert (f () === undefined && f === undefined);
+
+var f = new Function ('"use strict"; q = undefined;');
+try
+{
+  f ();
+  assert (false);
+}
+catch (e)
+{
+  assert (e instanceof ReferenceError);
+}
+
+for (i = 1; i < 10; i ++)
+{
+  var f = new Function ('a', 'b', 'var q = a; b++; function f (k) {return q + k + b++;}; return f;');
+
+  var fns = new Array ();
+
+  for (var n = 0; n < 10; n++)
+  {
+    var r = f (1, 7);
+    fns[n] = r;
+
+    var check_value = 10;
+
+    for (var m = 0; m < 100; m++)
+    {
+      var value = r (1);
+      assert (check_value++ === value);
+    }
+  }
+
+  var check_value = 109;
+  for (var n = 0; n < 11; n++)
+  {
+    for (var m = 0; m < 10; m++)
+    {
+      var value = fns [m] (m * n);
+      assert (value == check_value + m * n);
+    }
+
+    check_value++;
+  }
+}
+
+try
+{
+  new Function ({
+    toString : function () {
+      throw new TypeError();
+    },
+    valueOf : function () {
+      throw new TypeError();
+    }
+  });
+
+  assert (false);
+}
+catch (e)
+{
+  assert (e instanceof TypeError);
+}