Fixes for a number of dart analyzer issues in dart:html.

tools/dom/templates/html/impl/impl_Node.darttemplate

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of html;
 
 /**
  * Lazy implementation of the child nodes of an element that does not request
  * the actual child nodes of an element until strictly necessary greatly
  * improving performance for the typical cases where it is not required.
@@ skipping 34 matching lines @@
   }
   Node get single {
     int l = this.length;
     if (l == 0) throw new StateError("No elements");
     if (l > 1) throw new StateError("More than one element");
     return _this.$dom_firstChild;
   }
 $endif
 
   Node min([int compare(Node a, Node b)]) {
-    return _Collections.minInList(this, compare);
+    return Collections.min(this, compare);
   }
 
   Node max([int compare(Node a, Node b)]) {
-    return _Collections.maxInList(this, compare);
+    return Collections.max(this, compare);
   }
 
   void add(Node value) {
     _this.$dom_appendChild(value);
   }
 
   void addLast(Node value) {
     _this.$dom_appendChild(value);
   }
 
@@ skipping 48 matching lines @@
   List mappedBy(f(Node element)) =>
       new MappedList<Node, dynamic>(this, f);
 
   Iterable<Node> where(bool f(Node element)) =>
      new WhereIterable<Node>(this, f);
 
   bool every(bool f(Node element)) => Collections.every(this, f);
 
   bool any(bool f(Node element)) => Collections.any(this, f);
 
+  List<Node> toList() => new List<Node>.from(this);
+  Set<Node> toSet() => new Set<Node>.from(this);
+
   bool get isEmpty => this.length == 0;
 
   // From List<Node>:
 
   List<Node> take(int n) {
     return new ListView<Node>(this, 0, n);
   }
 
   Iterable<Node> takeWhile(bool test(Node value)) {
     return new TakeWhileIterable<Node>(this, test);
@@ skipping 103 matching lines @@
       final Node parent = this.parentNode;
       parent.$dom_replaceChild(otherNode, this);
     } catch (e) {
 
     };
     return this;
   }
 
 $!MEMBERS
 }