Move to new dart:typeddata types for dart2js

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 8baaa09a465dc7e70c67a9ffa485d07d106877c3..fdbcf36de682850e4f86a6bae335b9068fdca6ff 100644
--- a/tools/dom/templates/immutable_list_mixin.darttemplate
+++ b/tools/dom/templates/immutable_list_mixin.darttemplate
@@ -171,8 +171,12 @@ $endif
     throw new UnsupportedError("Cannot remove from immutable List.");
   }
 
-  void setRange(int start, int end, Iterable<$E> iterable, [int skipCount]) {
+  void setRange(int start, int end, Iterable<$E> iterable, [int skipCount=0]) {
+$if DEFINE_IMMUTABLE
     throw new UnsupportedError("Cannot setRange on immutable List.");
+$else
+    IterableMixinWorkaround.setRangeList(this, start, end, iterable, skipCount);
+$endif
   }
 
   void removeRange(int start, int end) {