Add a mid-sized integration test for the Dart Embedding Api which

runtime/include/dart_api.h

Index: runtime/include/dart_api.h
===================================================================
--- runtime/include/dart_api.h	(revision 1762)
+++ runtime/include/dart_api.h	(working copy)
@@ -445,6 +445,19 @@
 // TODO(turnidge): Should this be removed from the public api?
 
 /**
+ * Gets the main Dart_Port for the current isolate.
+ */
+DART_EXPORT Dart_Port Dart_GetMainPort();
+
+/**
+ * Does the current isolate have live ReceivePorts?
+ *
+ * A port is live when it has not been closed and when
+ * ReceivePort.receive() has been called to install a receive handler.
+ */

[siva, 2011/11/29 19:50:27]

Is this comment still valid?

[turnidge, 2011/12/05 17:53:34]

Updated.

+DART_EXPORT bool Dart_HasLivePorts();
+
+/**
  * Posts a message for some isolate. The message is built from a raw
  * array.
  *
@@ -473,6 +486,18 @@
  */
 DART_EXPORT bool Dart_Post(Dart_Port port, Dart_Handle object);
 
+/**
+ * Returns a new SendPort with the provided id.
+ */
+DART_EXPORT Dart_Handle Dart_NewSendPort(Dart_Port port);

[siva, 2011/11/29 19:50:27]

I would call the variable port_id to avoid having it seem as a port object.

[turnidge, 2011/12/05 17:53:34]

Done.  I also updated all other Dart_Port parameters in the api at the same
time.

+
+/**
+ * Returns a new ReceivePort with the provided id.
+ *
+ * Do not create multiple ReceivePorts with the same id.

[siva, 2011/11/29 19:50:27]

Is this a comment for the user stating that they should not call this multiple
times for the same id?

[turnidge, 2011/12/05 17:53:34]

Changed this function to Dart_GetReceivePort to imply that there is only one and
updated the code to return the same ReceivePort.

+ */
+DART_EXPORT Dart_Handle Dart_NewReceivePort(Dart_Port port);

[siva, 2011/11/29 19:50:27]

port => port_id

[turnidge, 2011/12/05 17:53:34]

Done.

+
 // --- Scopes ----
 
 /**