Change new List(n) to return fixed length list.

tools/dom/templates/immutable_list_mixin.darttemplate

Index: tools/dom/templates/immutable_list_mixin.darttemplate
diff --git a/tools/dom/templates/immutable_list_mixin.darttemplate b/tools/dom/templates/immutable_list_mixin.darttemplate
index 850c2f82ab3a785cfedf13e1b84796ab0f3a5c85..0c0658b7ed6e58b32d31a74f27f414c280955637 100644
--- a/tools/dom/templates/immutable_list_mixin.darttemplate
+++ b/tools/dom/templates/immutable_list_mixin.darttemplate
@@ -42,7 +42,9 @@ $endif
 
   bool any(bool f($E element)) => IterableMixinWorkaround.any(this, f);
 
-  List<$E> toList() => new List<$E>.from(this);
+  List<$E> toList({ bool growable: false }) =>
+      new List<$E>.from(this, growable: growable);

[floitsch, 2013/02/26 13:54:19]

IterableMixinWorkaround.

+
   Set<$E> toSet() => new Set<$E>.from(this);
 
   bool get isEmpty => this.length == 0;