Scanner / Unicode decoding: use size_t instead of unsigned.

src/heap/heap.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/base/bits.h"
 #include "src/base/once.h"
@@ skipping 3981 matching lines @@
 static inline void WriteOneByteData(Vector<const char> vector, uint8_t* chars,
                                     int len) {
   // Only works for one byte strings.
   DCHECK(vector.length() == len);
   MemCopy(chars, vector.start(), len);
 }
 
 static inline void WriteTwoByteData(Vector<const char> vector, uint16_t* chars,
                                     int len) {
   const uint8_t* stream = reinterpret_cast<const uint8_t*>(vector.start());
-  unsigned stream_length = vector.length();
+  size_t stream_length = vector.length();
   while (stream_length != 0) {
-    unsigned consumed = 0;
+    size_t consumed = 0;
     uint32_t c = unibrow::Utf8::ValueOf(stream, stream_length, &consumed);
     DCHECK(c != unibrow::Utf8::kBadChar);
     DCHECK(consumed <= stream_length);
     stream_length -= consumed;
     stream += consumed;
     if (c > unibrow::Utf16::kMaxNonSurrogateCharCode) {
       len -= 2;
       if (len < 0) break;
       *chars++ = unibrow::Utf16::LeadSurrogate(c);
       *chars++ = unibrow::Utf16::TrailSurrogate(c);
@@ skipping 2472 matching lines @@
       static_cast<int>(object_sizes_last_time_[index]));
   CODE_AGE_LIST_COMPLETE(ADJUST_LAST_TIME_OBJECT_COUNT)
 #undef ADJUST_LAST_TIME_OBJECT_COUNT
 
   MemCopy(object_counts_last_time_, object_counts_, sizeof(object_counts_));
   MemCopy(object_sizes_last_time_, object_sizes_, sizeof(object_sizes_));
   ClearObjectStats();
 }
 }
 }  // namespace v8::internal