Fixed the debugger compile events....

src/d8-debug.cc

 // Copyright 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 21 matching lines @@
 
 namespace v8 {
 
 
 void HandleDebugEvent(DebugEvent event,
                       Handle<Object> exec_state,
                       Handle<Object> event_data,
                       Handle<Value> data) {
   HandleScope scope;
 
-  // Currently only handles break and exception events.
-  if (event != Break && event != Exception) return;
+  // Check for handled event.
+  if (event != Break && event != Exception && event != AfterCompile) {
+    return;
+  }
 
   TryCatch try_catch;
 
   // Print the event details.
   Handle<String> details = Shell::DebugEventToText(event_data);
+  if (details->Length() == 0) {
+    // Empty string is used to signal not to process this event.
+    return;
+  }
   String::Utf8Value str(details);
   printf("%s\n", *str);
 
   // Get the debug command processor.
   Local<String> fun_name = String::New("debugCommandProcessor");
   Local<Function> fun = Function::Cast(*exec_state->Get(fun_name));
   Local<Object> cmd_processor =
       Object::Cast(*fun->Call(exec_state, 0, NULL));
   if (try_catch.HasCaught()) {
     Shell::ReportException(&try_catch);
@@ skipping 56 matching lines @@
     if (text_str.length() > 0) {
       printf("%s\n", *text_str);
     }
     running =
         response_details->Get(String::New("running"))->ToBoolean()->Value();
   }
 }
 
 
 }  // namespace v8