Use 'field' syntax in dart:dom interfaces.

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

Index: client/dom/generated/src/interface/SVGPathSegCurvetoCubicRel.dart
diff --git a/client/dom/generated/src/interface/SVGPathSegCurvetoCubicRel.dart b/client/dom/generated/src/interface/SVGPathSegCurvetoCubicRel.dart
index 3ef406cff86c157b37951ef7a78728ea0e9dbb59..660d4caac08fcfee184655ed390e13420d9ca55b 100644
--- a/client/dom/generated/src/interface/SVGPathSegCurvetoCubicRel.dart
+++ b/client/dom/generated/src/interface/SVGPathSegCurvetoCubicRel.dart
@@ -6,27 +6,15 @@
 
 interface SVGPathSegCurvetoCubicRel extends SVGPathSeg {
 
-  num get x();
+  num x;
 
-  void set x(num value);
+  num x1;
 
-  num get x1();
+  num x2;
 
-  void set x1(num value);
+  num y;
 
-  num get x2();
+  num y1;
 
-  void set x2(num value);
-
-  num get y();
-
-  void set y(num value);
-
-  num get y1();
-
-  void set y1(num value);
-
-  num get y2();
-
-  void set y2(num value);
+  num y2;
 }