Set global object's prototype

The global object should have the same prototype
as a simple object.

JerryScript-DCO-1.0-Signed-off-by: Peter Gal pgal.u-szeged@partner.samsung.com

tests/jerry/regression-test-issue-122.js

@@ -15,10 +15,11 @@
 
 try
 {
-  print(this, []);
+  print({toString: function() { throw new TypeError("foo"); }}, []);
   assert (false);
 }
 catch (e)
 {
   assert (e instanceof TypeError);
+  assert (e.message === "foo");
 }