Unify the handling of the event and response JSON in developer shell debugger...

src/d8.h

Index: src/d8.h
===================================================================
--- src/d8.h	(revision 1398)
+++ src/d8.h	(working copy)
@@ -88,9 +88,8 @@
   static int Main(int argc, char* argv[]);
   static Handle<Array> GetCompletions(Handle<String> text,
                                       Handle<String> full);
-  static Handle<String> DebugEventToText(Handle<String> event);
+  static Handle<Object> DebugMessageDetails(Handle<String> message);
   static Handle<Value> DebugCommandToJSONRequest(Handle<String> command);
-  static Handle<Object> DebugResponseDetails(Handle<String> response);
 
   static Handle<Value> Print(const Arguments& args);
   static Handle<Value> Quit(const Arguments& args);