Implement List<T> operations on dom types via manual mixins.

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

Index: client/dom/generated/src/frog/TouchList.dart
diff --git a/client/dom/generated/src/frog/TouchList.dart b/client/dom/generated/src/frog/TouchList.dart
index 7a2605f117214595178f17852d7e9cdaf721d1e6..7e5e0b6cf729b6634d426b93886fbb4b378def21 100644
--- a/client/dom/generated/src/frog/TouchList.dart
+++ b/client/dom/generated/src/frog/TouchList.dart
@@ -3,11 +3,78 @@ class TouchListJs extends DOMTypeJs implements TouchList native "*TouchList" {
 
   int get length() native "return this.length;";
 
-  TouchJs operator[](int index) native;
+  TouchJs operator[](int index) native "return this[index];";
 
   void operator[]=(int index, TouchJs value) {
     throw new UnsupportedOperationException("Cannot assign element of immutable List.");
   }
+  // -- start List<Touch> mixins.
+  // Touch is the element type.
+
+  // From Iterable<Touch>:
+
+  Iterator<Touch> iterator() {
+    // Note: NodeLists are not fixed size. And most probably length shouldn't
+    // be cached in both iterator _and_ forEach method. For now caching it
+    // for consistency.
+    return new _FixedSizeListIterator<Touch>(this);
+  }
+
+  // From Collection<Touch>:
+
+  void add(Touch value) {
+    throw new UnsupportedOperationException("Cannot add to immutable List.");
+  }
+
+  void addLast(Touch value) {
+    throw new UnsupportedOperationException("Cannot add to immutable List.");
+  }
+
+  void addAll(Collection<Touch> collection) {
+    throw new UnsupportedOperationException("Cannot add to immutable List.");
+  }
+
+  void forEach(void f(Touch element)) => _Collections.forEach(this, f);
+
+  Collection map(f(Touch element)) => _Collections.map(this, [], f);
+
+  Collection<Touch> filter(bool f(Touch element)) =>
+     _Collections.filter(this, <Touch>[], f);
+
+  bool every(bool f(Touch element)) => _Collections.every(this, f);
+
+  bool some(bool f(Touch element)) => _Collections.some(this, f);
+
+  bool isEmpty() => this.length == 0;
+
+  // From List<Touch>:
+
+  void sort(int compare(Touch a, Touch b)) {
+    throw new UnsupportedOperationException("Cannot sort immutable List.");
+  }
+
+  int indexOf(Touch element, [int start = 0]) =>
+      _Lists.indexOf(this, element, start, this.length);
+
+  int lastIndexOf(Touch element, [int start = 0]) =>
+      _Lists.lastIndexOf(this, element, start);
+
+  Touch last() => this[length - 1];
+
+  // FIXME: implement thesee.
+  void setRange(int start, int length, List<Touch> from, [int startFrom]) {
+    throw new UnsupportedOperationException("Cannot setRange on immutable List.");
+  }
+  void removeRange(int start, int length) {
+    throw new UnsupportedOperationException("Cannot removeRange on immutable List.");
+  }
+  void insertRange(int start, int length, [Touch initialValue]) {
+    throw new UnsupportedOperationException("Cannot insertRange on immutable List.");
+  }
+  List<Touch> getRange(int start, int length) =>
+      _Lists.getRange(this, start, length, <Touch>[]);
+
+  // -- end List<Touch> mixins.
 
   TouchJs item(int index) native;
 }