Make dart:dom implementation types private so they don't muddle the docs.

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

Index: client/dom/generated/src/frog/SVGFECompositeElement.dart
diff --git a/client/dom/generated/src/frog/SVGFECompositeElement.dart b/client/dom/generated/src/frog/SVGFECompositeElement.dart
index cdc4dcf5a0315d3a9df4fdcc6b4ca34a53d3f356..0d7fc55e59638b7e835534fed07ea6be8042c487 100644
--- a/client/dom/generated/src/frog/SVGFECompositeElement.dart
+++ b/client/dom/generated/src/frog/SVGFECompositeElement.dart
@@ -1,5 +1,5 @@
 
-class SVGFECompositeElementJs extends SVGElementJs implements SVGFECompositeElement native "*SVGFECompositeElement" {
+class _SVGFECompositeElementJs extends _SVGElementJs implements SVGFECompositeElement native "*SVGFECompositeElement" {
 
   static final int SVG_FECOMPOSITE_OPERATOR_ARITHMETIC = 6;
 
@@ -15,37 +15,37 @@ class SVGFECompositeElementJs extends SVGElementJs implements SVGFECompositeElem
 
   static final int SVG_FECOMPOSITE_OPERATOR_XOR = 5;
 
-  SVGAnimatedStringJs get in1() native "return this.in1;";
+  _SVGAnimatedStringJs get in1() native "return this.in1;";
 
-  SVGAnimatedStringJs get in2() native "return this.in2;";
+  _SVGAnimatedStringJs get in2() native "return this.in2;";
 
-  SVGAnimatedNumberJs get k1() native "return this.k1;";
+  _SVGAnimatedNumberJs get k1() native "return this.k1;";
 
-  SVGAnimatedNumberJs get k2() native "return this.k2;";
+  _SVGAnimatedNumberJs get k2() native "return this.k2;";
 
-  SVGAnimatedNumberJs get k3() native "return this.k3;";
+  _SVGAnimatedNumberJs get k3() native "return this.k3;";
 
-  SVGAnimatedNumberJs get k4() native "return this.k4;";
+  _SVGAnimatedNumberJs get k4() native "return this.k4;";
 
-  SVGAnimatedEnumerationJs get operator() native "return this.operator;";
+  _SVGAnimatedEnumerationJs get operator() native "return this.operator;";
 
   // From SVGFilterPrimitiveStandardAttributes
 
-  SVGAnimatedLengthJs get height() native "return this.height;";
+  _SVGAnimatedLengthJs get height() native "return this.height;";
 
-  SVGAnimatedStringJs get result() native "return this.result;";
+  _SVGAnimatedStringJs get result() native "return this.result;";
 
-  SVGAnimatedLengthJs get width() native "return this.width;";
+  _SVGAnimatedLengthJs get width() native "return this.width;";
 
-  SVGAnimatedLengthJs get x() native "return this.x;";
+  _SVGAnimatedLengthJs get x() native "return this.x;";
 
-  SVGAnimatedLengthJs get y() native "return this.y;";
+  _SVGAnimatedLengthJs get y() native "return this.y;";
 
   // From SVGStylable
 
-  SVGAnimatedStringJs get className() native "return this.className;";
+  _SVGAnimatedStringJs get className() native "return this.className;";
 
-  CSSStyleDeclarationJs get style() native "return this.style;";
+  _CSSStyleDeclarationJs get style() native "return this.style;";
 
-  CSSValueJs getPresentationAttribute(String name) native;
+  _CSSValueJs getPresentationAttribute(String name) native;
 }