Simplify preparsing of "new"-expressions.

test/cctest/test-parsing.cc

Index: test/cctest/test-parsing.cc
diff --git a/test/cctest/test-parsing.cc b/test/cctest/test-parsing.cc
index 3134b12e0278fa79e5ff5e6d48a7830bcddc9f88..cdf1c7b908e5b7ecaa3ca2f5b0a1070c6b5dbfed 100755
--- a/test/cctest/test-parsing.cc
+++ b/test/cctest/test-parsing.cc
@@ -253,6 +253,7 @@ TEST(StandAlonePreParser) {
       "var x = 42;",
       "function foo(x, y) { return x + y; }",
       "native function foo(); return %ArgleBargle(glop);",
+      "var x = new new Function('this.x = 42');",
       NULL
   };