Use 'field' syntax in dart:dom interfaces.

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

Index: client/dom/generated/src/interface/SVGLength.dart
diff --git a/client/dom/generated/src/interface/SVGLength.dart b/client/dom/generated/src/interface/SVGLength.dart
index 18a344eea344e2f4c8c97cb96ce1803d8855e8a8..d80eb01ff3481434c65a53daf1a1cfb2b1fda35d 100644
--- a/client/dom/generated/src/interface/SVGLength.dart
+++ b/client/dom/generated/src/interface/SVGLength.dart
@@ -28,19 +28,13 @@ interface SVGLength {
 
   static final int SVG_LENGTHTYPE_UNKNOWN = 0;
 
-  int get unitType();
+  final int unitType;
 
-  num get value();
+  num value;
 
-  void set value(num value);
+  String valueAsString;
 
-  String get valueAsString();
-
-  void set valueAsString(String value);
-
-  num get valueInSpecifiedUnits();
-
-  void set valueInSpecifiedUnits(num value);
+  num valueInSpecifiedUnits;
 
   void convertToSpecifiedUnits(int unitType);