Harden Function()'s parsing of function literals.

test/mjsunit/new-function.js

Index: test/mjsunit/new-function.js
diff --git a/test/mjsunit/new-function.js b/test/mjsunit/new-function.js
index 9e8cc277683cde0f4c22333b0e27cda1a30ad326..794bd765e96d16d13a1cf42c338be6d20174ccdd 100644
--- a/test/mjsunit/new-function.js
+++ b/test/mjsunit/new-function.js
@@ -25,10 +25,10 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-var x;
+var x = 0;
 try {
   Function("}), x = this, (function() {");
 } catch(e) {
   print("Caught " + e);
 }
-assertTrue(x == "[object global]");
+assertTrue(x === 0);