Unbreak Windows build after UTF-16 change (sys/types.h does not define

src/unicode.h

 // Copyright 2011 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:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 99 matching lines @@
   Data data() { return data_; }
   unsigned length() { return length_; }
  private:
   Data data_;
   unsigned length_;
 };
 
 
 class Utf16 {
  public:
-  static inline bool IsLeadSurrogate(int32_t code) {
+  static inline bool IsLeadSurrogate(int code) {
     if (code == kNoPreviousCharacter) return false;
     return (code & 0xfc00) == 0xd800;
   }
-  static inline bool IsTrailSurrogate(int32_t code) {
+  static inline bool IsTrailSurrogate(int code) {
     if (code == kNoPreviousCharacter) return false;
     return (code & 0xfc00) == 0xdc00;
   }
 
-  static inline int32_t CombineSurrogatePair(uchar lead, uchar trail) {
+  static inline int CombineSurrogatePair(uchar lead, uchar trail) {
     return 0x10000 + ((lead & 0x3ff) << 10) + (trail & 0x3ff);
   }
-  static const int32_t kNoPreviousCharacter = -1;
+  static const int kNoPreviousCharacter = -1;
   static const uchar kMaxNonSurrogateCharCode = 0xffff;
   // Encoding a single UTF-16 code unit will produce 1, 2 or 3 bytes
   // of UTF-8 data.  The special case where the unit is a surrogate
   // trail produces 1 byte net, because the encoding of the pair is
   // 4 bytes and the 3 bytes that were used to encode the lead surrogate
   // can be reclaimed.
   static const int kMaxExtraUtf8BytesForOneUtf16CodeUnit = 3;
   // One UTF-16 surrogate is endoded (illegally) as 3 UTF-8 bytes.
   // The illegality stems from the surrogate not being part of a pair.
   static const int kUtf8BytesToCodeASurrogate = 3;
-  static inline uchar LeadSurrogate(int32_t char_code) {
+  static inline uchar LeadSurrogate(int char_code) {
     return 0xd800 + (((char_code - 0x10000) >> 10) & 0x3ff);
   }
-  static inline uchar TrailSurrogate(int32_t char_code) {
+  static inline uchar TrailSurrogate(int char_code) {
     return 0xdc00 + (char_code & 0x3ff);
   }
 };
 
 
 class Utf8 {
  public:
   static inline uchar Length(uchar chr, int previous);
   static inline unsigned Encode(
       char* out, uchar c, int previous);
@@ skipping 157 matching lines @@
   static const int kMaxWidth = 1;
   static int Convert(uchar c,
                      uchar n,
                      uchar* result,
                      bool* allow_caching_ptr);
 };
 
 }  // namespace unibrow
 
 #endif  // V8_UNICODE_H_