Add new Dart API call Dart_MakeIsolateRunnable(). This would allow an

runtime/bin/main.cc

Index: runtime/bin/main.cc
===================================================================
--- runtime/bin/main.cc	(revision 20945)
+++ runtime/bin/main.cc	(working copy)
@@ -478,6 +478,18 @@
     Dart_ShutdownIsolate();
     return false;
   }
+
+  // Make the isolate runnable so that it is ready to handle messages.
+  Dart_ExitIsolate();

[Ivan Posva, 2013/04/05 15:51:59]

If this method was changed to return the isolate instead of a bool then we would
have to have this dance of setting the isolate back as an implicit return value.

[siva, 2013/04/05 17:43:29]

Done.

+  bool retval = Dart_MakeIsolateRunnable(isolate);
+  Dart_EnterIsolate(isolate);
+  if (!retval) {
+    *error = strdup("Invalid isolate state - Unable to make it runnable");
+    Dart_ExitScope();
+    Dart_ShutdownIsolate();
+    return false;
+  }
+
   Dart_ExitScope();
   VmStats::AddIsolate(reinterpret_cast<IsolateData*>(data), isolate);
   return true;