[turbofan] Output file for C1 visualizer.

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index e8e1d66602b90606e3728f3590af7af3aecc9511..83b732dd0bf3c80509397a1bafc842b75df08cbc 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -1931,6 +1931,11 @@ bool Isolate::Init(Deserializer* des) {
     optimizing_compiler_thread_->Start();
   }
 
+  if (FLAG_trace_turbo) {
+    FILE* turbo_cfg_file = base::OS::FOpen("turbo.cfg", "w+");

[Benedikt Meurer, 2014/10/13 04:02:12]

Please use std::ofstream here.

[Jarin, 2014/10/13 07:35:54]

Done.

+    fclose(turbo_cfg_file);
+  }
+
   // If we are deserializing, read the state into the now-empty heap.
   if (!create_heap_objects) {
     des->Deserialize(this);