Use fields in hidden native DOM classes instead of getters/setters.

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

Index: client/dom/generated/src/frog/SVGPathSegArcRel.dart
diff --git a/client/dom/generated/src/frog/SVGPathSegArcRel.dart b/client/dom/generated/src/frog/SVGPathSegArcRel.dart
index 7eb09ae43f48afd771f69212ef5c5f77cd9d2526..1deee70f149f1320eed739113dc1bf931d0ac42c 100644
--- a/client/dom/generated/src/frog/SVGPathSegArcRel.dart
+++ b/client/dom/generated/src/frog/SVGPathSegArcRel.dart
@@ -1,31 +1,17 @@
 
 class _SVGPathSegArcRelJs extends _SVGPathSegJs implements SVGPathSegArcRel native "*SVGPathSegArcRel" {
 
-  num get angle() native "return this.angle;";
+  num angle;
 
-  void set angle(num value) native "this.angle = value;";
+  bool largeArcFlag;
 
-  bool get largeArcFlag() native "return this.largeArcFlag;";
+  num r1;
 
-  void set largeArcFlag(bool value) native "this.largeArcFlag = value;";
+  num r2;
 
-  num get r1() native "return this.r1;";
+  bool sweepFlag;
 
-  void set r1(num value) native "this.r1 = value;";
+  num x;
 
-  num get r2() native "return this.r2;";
-
-  void set r2(num value) native "this.r2 = value;";
-
-  bool get sweepFlag() native "return this.sweepFlag;";
-
-  void set sweepFlag(bool value) native "this.sweepFlag = value;";
-
-  num get x() native "return this.x;";
-
-  void set x(num value) native "this.x = value;";
-
-  num get y() native "return this.y;";
-
-  void set y(num value) native "this.y = value;";
+  num y;
 }