Changed d8 to print exception stack traces like samples/shell.cc.

src/d8.cc

 // Copyright 2009 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 248 matching lines @@
     // Print wavy underline (GetUnderline is deprecated).
     int start = message->GetStartColumn();
     for (int i = 0; i < start; i++) {
       printf(" ");
     }
     int end = message->GetEndColumn();
     for (int i = start; i < end; i++) {
       printf("^");
     }
     printf("\n");
+    v8::String::Utf8Value stack_trace(try_catch->StackTrace());
+    if (stack_trace.length() > 0) {
+      const char* stack_trace_string = ToCString(stack_trace);
+      printf("%s\n", stack_trace_string);
+    }
   }
 }
 
 
 Handle<Array> Shell::GetCompletions(Handle<String> text, Handle<String> full) {
   HandleScope handle_scope;
   Context::Scope context_scope(utility_context_);
   Handle<Object> global = utility_context_->Global();
   Handle<Value> fun = global->Get(String::New("GetCompletions"));
   static const int kArgc = 3;
@@ skipping 505 matching lines @@
     delete thread;
   }
   OnExit();
   return 0;
 }
 
 
 }  // namespace v8
 
 
+#ifndef GOOGLE3
 int main(int argc, char* argv[]) {
   return v8::Shell::Main(argc, argv);
 }
+#endif