Fix lint error with strtol in test

test/cctest/test-debug.cc

 // Copyright 2007-2008 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 3863 matching lines @@
 
 // We match parts of the message to get total frames number.
 int GetTotalFramesInt(char *message) {
   const char* prefix = "\"totalFrames\":";
   char* pos = strstr(message, prefix);
   if (pos == NULL) {
     return -1;
   }
   pos += strlen(prefix);
   char* pos_end = pos;
-  long res = strtol(pos, &pos_end, 10);
+  int res = static_cast<int>(strtol(pos, &pos_end, 10));
   if (pos_end == pos) {
     return -1;
   }
-  return static_cast<int>(res);
+  return res;
 }
 
 
 /* Test MessageQueues */
 /* Tests the message queues that hold debugger commands and
  * response messages to the debugger.  Fills queues and makes
  * them grow.
  */
 Barriers message_queue_barriers;
 
@@ skipping 2121 matching lines @@
 
   break_point_hit_count = 0;
   foo->Call(env->Global(), 0, NULL);
   CHECK_EQ(1, break_point_hit_count);
 
   v8::Debug::SetDebugEventListener(NULL);
   debugee_context = v8::Handle<v8::Context>();
   debugger_context = v8::Handle<v8::Context>();
   CheckDebuggerUnloaded();
 }