Added labelled thread names to help with some debugging activity. Right now,...

src/d8.cc

Index: src/d8.cc
===================================================================
--- src/d8.cc	(revision 6114)
+++ src/d8.cc	(working copy)
@@ -599,7 +599,11 @@
 class ShellThread : public i::Thread {
  public:
   ShellThread(int no, i::Vector<const char> files)
-    : no_(no), files_(files) { }
+    :
+#ifdef DEBUG_THREAD_NAMES
+      Thread("d8:ShellThread"),
+#endif
+      no_(no), files_(files) { }
   virtual void Run();
  private:
   int no_;