Use 'field' syntax in dart:dom interfaces.

client/dom/generated/src/interface/RealtimeAnalyserNode.dart

Index: client/dom/generated/src/interface/RealtimeAnalyserNode.dart
diff --git a/client/dom/generated/src/interface/RealtimeAnalyserNode.dart b/client/dom/generated/src/interface/RealtimeAnalyserNode.dart
index a8d2f97c3b82544c9953767aa0cfde87220921b8..4e28f3adf4fe20a2f95e85b9d1506af612344399 100644
--- a/client/dom/generated/src/interface/RealtimeAnalyserNode.dart
+++ b/client/dom/generated/src/interface/RealtimeAnalyserNode.dart
@@ -6,23 +6,15 @@
 
 interface RealtimeAnalyserNode extends AudioNode {
 
-  int get fftSize();
+  int fftSize;
 
-  void set fftSize(int value);
+  final int frequencyBinCount;
 
-  int get frequencyBinCount();
+  num maxDecibels;
 
-  num get maxDecibels();
+  num minDecibels;
 
-  void set maxDecibels(num value);
-
-  num get minDecibels();
-
-  void set minDecibels(num value);
-
-  num get smoothingTimeConstant();
-
-  void set smoothingTimeConstant(num value);
+  num smoothingTimeConstant;
 
   void getByteFrequencyData(Uint8Array array);