deps: log V8 version in profiler log file

Patch from issue 800293002 authored by ben@strongloop.com

Review URL: https://codereview.chromium.org/806143002

PR-URL: https://github.com/joyent/node/pull/9043
Reviewed-by: Trevor Norris <trev.norris@gmail.com>
Reviewed-By: Timothy J Fontaine <tjfontaine@gmail.com>

deps/v8/src/log-utils.cc

@@ -29,6 +29,7 @@
 
 #include "log-utils.h"
 #include "string-stream.h"
+#include "version.h"
 
 namespace v8 {
 namespace internal {
@@ -136,6 +137,14 @@ void Log::Initialize() {
       }
     }
   }
+
+  if (output_handle_ != NULL) {
+    LogMessageBuilder msg(logger_);
+    msg.Append("v8-version,%d,%d,%d,%d,%d\n", Version::GetMajor(),
+               Version::GetMinor(), Version::GetBuild(), Version::GetPatch(),
+               Version::IsCandidate());
+    msg.WriteToLogFile();
+  }
 }