Improve behaviour when we hit a stack overflow / OOM error

runtime/vm/service.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/service.h"
 
 #include "include/dart_api.h"
 #include "include/dart_native_api.h"
 #include "platform/globals.h"
 
@@ skipping 978 matching lines @@
       break;
   }
   if (!ServiceIsolate::IsRunning()) {
     OS::PrintErr("  Start the vm-service to debug.\n");
   } else if (ServiceIsolate::server_address() == NULL) {
     OS::PrintErr("  Connect to Observatory to debug.\n");
   } else {
     OS::PrintErr("  Connect to Observatory at %s to debug.\n",
                  ServiceIsolate::server_address());
   }
+  const Error& err = Error::Handle(Thread::Current()->sticky_error());
+  if (!err.IsNull()) {
+    OS::PrintErr("%s\n", err.ToErrorCString());
+  }
 }
 
 
 void Service::HandleEvent(ServiceEvent* event) {
   if (event->isolate() != NULL &&
       ServiceIsolate::IsServiceIsolateDescendant(event->isolate())) {
     return;
   }
   if (FLAG_warn_on_pause_with_no_debugger &&
       event->IsPause() && !Service::debug_stream.enabled()) {
@@ skipping 2988 matching lines @@
     if (strcmp(method_name, method.name) == 0) {
       return &method;
     }
   }
   return NULL;
 }
 
 #endif  // !PRODUCT
 
 }  // namespace dart