Remove generated directories with 100s of files.

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

-
-class _MediaListJs extends _DOMTypeJs implements MediaList native "*MediaList" {
-
-  final int length;
-
-  String mediaText;
-
-  String operator[](int index) native "return this[index];";
-
-  void operator[]=(int index, String value) {
-    throw new UnsupportedOperationException("Cannot assign element of immutable List.");
-  }
-  // -- start List<String> mixins.
-  // String is the element type.
-
-  // From Iterable<String>:
-
-  Iterator<String> 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<String>(this);
-  }
-
-  // From Collection<String>:
-
-  void add(String value) {
-    throw new UnsupportedOperationException("Cannot add to immutable List.");
-  }
-
-  void addLast(String value) {
-    throw new UnsupportedOperationException("Cannot add to immutable List.");
-  }
-
-  void addAll(Collection<String> collection) {
-    throw new UnsupportedOperationException("Cannot add to immutable List.");
-  }
-
-  void forEach(void f(String element)) => _Collections.forEach(this, f);
-
-  Collection map(f(String element)) => _Collections.map(this, [], f);
-
-  Collection<String> filter(bool f(String element)) =>
-     _Collections.filter(this, <String>[], f);
-
-  bool every(bool f(String element)) => _Collections.every(this, f);
-
-  bool some(bool f(String element)) => _Collections.some(this, f);
-
-  bool isEmpty() => this.length == 0;
-
-  // From List<String>:
-
-  void sort(int compare(String a, String b)) {
-    throw new UnsupportedOperationException("Cannot sort immutable List.");
-  }
-
-  int indexOf(String element, [int start = 0]) =>
-      _Lists.indexOf(this, element, start, this.length);
-
-  int lastIndexOf(String element, [int start = 0]) =>
-      _Lists.lastIndexOf(this, element, start);
-
-  String last() => this[length - 1];
-
-  // FIXME: implement thesee.
-  void setRange(int start, int length, List<String> 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, [String initialValue]) {
-    throw new UnsupportedOperationException("Cannot insertRange on immutable List.");
-  }
-  List<String> getRange(int start, int length) =>
-      _Lists.getRange(this, start, length, <String>[]);
-
-  // -- end List<String> mixins.
-
-  void appendMedium(String newMedium) native;
-
-  void deleteMedium(String oldMedium) native;
-
-  String item(int index) native;
-}