Include what you use for the preparser.

src/bignum.cc

Index: src/bignum.cc
diff --git a/src/bignum.cc b/src/bignum.cc
index 9436322ed49b38080875e1a5eceef7861fbc3745..15a48be0ba323cc40ac52ed49293dc4391528149 100644
--- a/src/bignum.cc
+++ b/src/bignum.cc
@@ -1,4 +1,4 @@
-// Copyright 2011 the V8 project authors. All rights reserved.
+// Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
@@ -25,8 +25,6 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#include "../include/v8stdint.h"
-#include "utils.h"
 #include "bignum.h"
 
 namespace v8 {