Add an IsolateRunnable event to the service protocol. Improve service docs.

runtime/vm/service_event.cc

 // Copyright (c) 2015, 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_event.h"
 
 namespace dart {
 
 // Translate from the legacy DebugEvent to a ServiceEvent.
 static ServiceEvent::EventKind TranslateEventKind(
@@ skipping 44 matching lines @@
       type == DebuggerEvent::kExceptionThrown) {
     set_top_frame(debugger_event->top_frame());
   }
 }
 
 
 const char* ServiceEvent::KindAsCString() const {
   switch (kind()) {
     case kIsolateStart:
       return "IsolateStart";
+    case kIsolateRunnable:
+      return "IsolateRunnable";
     case kIsolateExit:
       return "IsolateExit";
     case kIsolateUpdate:
       return "IsolateUpdate";
     case kPauseStart:
       return "PauseStart";
     case kPauseExit:
       return "PauseExit";
     case kPauseBreakpoint:
       return "PauseBreakpoint";
@@ skipping 24 matching lines @@
     default:
       UNREACHABLE();
       return "Unknown";
   }
 }
 
 
 const char* ServiceEvent::stream_id() const {
   switch (kind()) {
     case kIsolateStart:
+    case kIsolateRunnable:
     case kIsolateExit:
     case kIsolateUpdate:
       return Service::isolate_stream.id();
 
     case kPauseStart:
     case kPauseExit:
     case kPauseBreakpoint:
     case kPauseInterrupted:
     case kPauseException:
     case kResume:
@@ skipping 78 matching lines @@
 
 
 void ServiceEvent::PrintJSONHeader(JSONObject* jsobj) const {
   ASSERT(jsobj != NULL);
   jsobj->AddProperty("type", "Event");
   jsobj->AddProperty("kind", KindAsCString());
   jsobj->AddProperty("isolate", isolate());
 }
 
 }  // namespace dart