Added builtin native call to exit the running vm

samples/total/src/TotalServer.dart

Index: samples/total/src/TotalServer.dart
diff --git a/samples/total/src/TotalServer.dart b/samples/total/src/TotalServer.dart
index 117ea9f34b030ee43523bd9c96609d704dfc2af5..b1ca2f1d5a7b5d7f25c851952a1d93fa1fb8c6b2 100644
--- a/samples/total/src/TotalServer.dart
+++ b/samples/total/src/TotalServer.dart
@@ -56,15 +56,15 @@ class TotalServer extends IsolatedServer {
   void restartServer(HTTPRequest request, HTTPResponse response) {
     writeData(request, response, 'Restarting, KBBS', 'text/plain');
     stop();
-    print("GRACEFUL RESTART!! TODO: make server exit gracefully");
-    throw "GRACEFUL RESTART!! TODO: make server exit gracefully";
+    print("GRACEFUL RESTART!!");
+    exit(42);
   }
 
   void stopServer(HTTPRequest request, HTTPResponse response) {
     writeData(request, response, 'Exiting, KTHXBYE', 'text/plain');
     stop();
-    print("GRACEFUL EXIT!! TODO: make server exit gracefully");
-    throw "GRACEFUL EXIT!! TODO: make server exit gracefully";
+    print("GRACEFUL EXIT!!");
+    exit(0);

[siva, 2011/10/21 22:04:09]

Will this test be run under dartium? if yes you need to give them a heads up
that print/exit needs to be implemented by them in order for this to work.

There is a change in works for injecting an implementation of print from the
embedder, I presume exit should be handled similarly (see 5476054 Dartium needs
to provide print in dart:core)

[rchandia, 2011/10/25 14:37:50]

No, this is only server side. Client code should never need to exit with a
status code.
This being server side is that still the case?

[siva, 2011/10/25 17:19:34]

No, if this is server side only it is not an issue.

On 2011/10/25 14:37:50, rchandia wrote:

   }
 
   void writeData(HTTPRequest request, HTTPResponse response, String message, String mimeType) {