Fix warnings on Win64.

src/utils.cc

 // Copyright 2006-2008 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 111 matching lines @@
   fprintf(stdout, "%s", prompt);
   fflush(stdout);
   while (keep_going) {
     if (fgets(line_buf, sizeof(line_buf), stdin) == NULL) {
       // fgets got an error. Just give up.
       if (result != NULL) {
         DeleteArray(result);
       }
       return NULL;
     }
-    int len = strlen(line_buf);
+    int len = StrLength(line_buf);
     if (len > 1 &&
         line_buf[len - 2] == '\\' &&
         line_buf[len - 1] == '\n') {
       // When we read a line that ends with a "\" we remove the escape and
       // append the remainder.
       line_buf[len - 2] = '\n';
       line_buf[len - 1] = 0;
       len -= 1;
     } else if ((len > 0) && (line_buf[len - 1] == '\n')) {
       // Since we read a new line we are done reading the line. This
@@ skipping 34 matching lines @@
     }
     return NULL;
   }
 
   // Get the size of the file and rewind it.
   *size = ftell(file);
   rewind(file);
 
   char* result = NewArray<char>(*size + extra_space);
   for (int i = 0; i < *size;) {
-    int read = fread(&result[i], 1, *size - i, file);
+    int read = static_cast<int>(fread(&result[i], 1, *size - i, file));
     if (read <= 0) {
       fclose(file);
       DeleteArray(result);
       return NULL;
     }
     i += read;
   }
   fclose(file);
   return result;
 }
@@ skipping 16 matching lines @@
   }
   result[size] = '\0';
   *exists = true;
   return Vector<const char>(result, size);
 }
 
 
 int WriteCharsToFile(const char* str, int size, FILE* f) {
   int total = 0;
   while (total < size) {
-    int write = fwrite(str, 1, size - total, f);
+    int write = static_cast<int>(fwrite(str, 1, size - total, f));
     if (write == 0) {
       return total;
     }
     total += write;
     str += write;
   }
   return total;
 }
 
 
@@ skipping 23 matching lines @@
 }
 
 
 StringBuilder::StringBuilder(int size) {
   buffer_ = Vector<char>::New(size);
   position_ = 0;
 }
 
 
 void StringBuilder::AddString(const char* s) {
-  AddSubstring(s, strlen(s));
+  AddSubstring(s, StrLength(s));
 }
 
 
 void StringBuilder::AddSubstring(const char* s, int n) {
   ASSERT(!is_finalized() && position_ + n < buffer_.length());
   ASSERT(static_cast<size_t>(n) <= strlen(s));
   memcpy(&buffer_[position_], s, n * kCharSize);
   position_ += n;
 }
 
@@ skipping 24 matching lines @@
   buffer_[position_] = '\0';
   // Make sure nobody managed to add a 0-character to the
   // buffer while building the string.
   ASSERT(strlen(buffer_.start()) == static_cast<size_t>(position_));
   position_ = -1;
   ASSERT(is_finalized());
   return buffer_.start();
 }
 
 } }  // namespace v8::internal