Add crash dumps to service protocol and Observatory

runtime/vm/debugger.h

Index: runtime/vm/debugger.h
diff --git a/runtime/vm/debugger.h b/runtime/vm/debugger.h
index 3439a7995c7fa8a1422914163147749e13df4d2b..b9a44bbf1cef97178f7b1ffd4b7ea19fdf6de155 100644
--- a/runtime/vm/debugger.h
+++ b/runtime/vm/debugger.h
@@ -200,7 +200,10 @@ class ActivationFrame : public ZoneAllocated {
 
   RawObject* Evaluate(const String& expr);
 
-  void PrintToJSONObject(JSONObject* jsobj);
+  // Print the activation frame into |jsobj|. if |full| is false, script
+  // and local variable objects are only references. if |full| is true,
+  // the complete script, function, and, local variable objects are included.

[turnidge, 2015/04/23 17:03:33]

In a future CL, drop support for "full" and dump the ring... as discussed with
iposva offline.  Ok for now.

[Cutch, 2015/04/24 00:05:32]

Acknowledged.

+  void PrintToJSONObject(JSONObject* jsobj, bool full = false);
 
  private:
   void PrintContextMismatchError(const String& var_name,