Adding test for some limitations that take effect in strict mode.

tests/jerry/strict.js

@@ -0,0 +1,71 @@
+// Copyright 2014 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.
+
+'use strict';
+
+var temp;
+
+try
+{
+  a = 1;
+
+  assert (false);
+} catch (e)
+{
+  assert (e instanceof ReferenceError);
+}
+
+try
+{
+  NaN = 1;
+
+  assert (false);
+} catch (e)
+{
+  assert (e instanceof TypeError);
+}
+
+function f()
+{
+  assert(this === undefined);
+}
+
+f();
+
+Object.function_prop = function ()
+{
+  assert (this === Object);
+}
+
+Object.function_prop ();
+
+try
+{
+  var temp = f.caller;
+
+  assert (false);
+} catch (e)
+{
+  assert (e instanceof TypeError);
+}
+
+try
+{
+  delete this.NaN;
+
+  assert (false);
+} catch (e)
+{
+  assert (e instanceof TypeError);
+}