Make mksnapshot stats unambiguous for easier parsing.

src/snapshot/snapshot-common.cc

 // Copyright 2006-2008 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.
 
 // The common functionality when building with or without snapshots.
 
 #include "src/v8.h"
 
 #include "src/api.h"
 #include "src/base/platform/platform.h"
@@ skipping 92 matching lines @@
     int startup_total = 0;
     int context_total = 0;
     for (auto& reservation : startup_reservations) {
       startup_total += reservation.chunk_size();
     }
     for (auto& reservation : context_reservations) {
       context_total += reservation.chunk_size();
     }
     PrintF(
         "Deserialization will reserve:\n"
-        "%10d bytes for startup\n"
+        "%10d bytes per isolate\n"
         "%10d bytes per context\n",
         startup_total, context_total);
   }
 
   for (int space = 0; space < i::Serializer::kNumberOfSpaces; space++) {
     bool single_chunk = true;
     while (!startup_reservations[startup_index].is_last()) {
       single_chunk = false;
       startup_index++;
     }
@@ skipping 96 matching lines @@
   int startup_length;
   memcpy(&startup_length, data->data + kStartupLengthOffset, kIntSize);
   int context_offset = ContextOffset(startup_length);
   const byte* context_data =
       reinterpret_cast<const byte*>(data->data + context_offset);
   DCHECK_LT(context_offset, data->raw_size);
   int context_length = data->raw_size - context_offset;
   return Vector<const byte>(context_data, context_length);
 }
 } }  // namespace v8::internal