Move frog dart:dom from fields to getters/setters.

client/dom/generated/src/frog/AudioContext.dart

Index: client/dom/generated/src/frog/AudioContext.dart
diff --git a/client/dom/generated/src/frog/AudioContext.dart b/client/dom/generated/src/frog/AudioContext.dart
index 1f61c0088cf689d2c6910d72fe56d70474ced8f6..5c86308aa4bbc11907837fa5ebc3b99775755bac 100644
--- a/client/dom/generated/src/frog/AudioContext.dart
+++ b/client/dom/generated/src/frog/AudioContext.dart
@@ -3,15 +3,17 @@ class AudioContext native "*AudioContext" {
   AudioContext() native;
 
 
-  num currentTime;
+  num get currentTime() native "return this.currentTime;";
 
-  AudioDestinationNode destination;
+  AudioDestinationNode get destination() native "return this.destination;";
 
-  AudioListener listener;
+  AudioListener get listener() native "return this.listener;";
 
-  EventListener oncomplete;
+  EventListener get oncomplete() native "return this.oncomplete;";
 
-  num sampleRate;
+  void set oncomplete(EventListener value) native "this.oncomplete = value;";
+
+  num get sampleRate() native "return this.sampleRate;";
 
   RealtimeAnalyserNode createAnalyser() native;