Removed IllegalAccessException and UnsupportedOperationException.

lib/html/templates/html/impl/impl_Node.darttemplate

Index: lib/html/templates/html/impl/impl_Node.darttemplate
diff --git a/lib/html/templates/html/impl/impl_Node.darttemplate b/lib/html/templates/html/impl/impl_Node.darttemplate
index 8b369d145dde3881ab2298783d5e70bb761d5c75..8fa566de154254dad4025c261c651e262da99c3b 100644
--- a/lib/html/templates/html/impl/impl_Node.darttemplate
+++ b/lib/html/templates/html/impl/impl_Node.darttemplate
@@ -76,7 +76,7 @@ $endif
   // TODO(jacobr): this could be implemented for child node lists.
   // The exception we throw here is misleading.
   void sort([Comparator<Node> compare = Comparable.compare]) {
-    throw new UnsupportedOperationException("Cannot sort immutable List.");
+    throw new UnsupportedError("Cannot sort immutable List.");
   }
 
   int indexOf(Node element, [int start = 0]) =>
@@ -87,15 +87,15 @@ $endif
 
   // FIXME: implement these.
   void setRange(int start, int rangeLength, List<Node> from, [int startFrom]) {
-    throw new UnsupportedOperationException(
+    throw new UnsupportedError(
         "Cannot setRange on immutable List.");
   }
   void removeRange(int start, int rangeLength) {
-    throw new UnsupportedOperationException(
+    throw new UnsupportedError(
         "Cannot removeRange on immutable List.");
   }
   void insertRange(int start, int rangeLength, [Node initialValue]) {
-    throw new UnsupportedOperationException(
+    throw new UnsupportedError(
         "Cannot insertRange on immutable List.");
   }
   List<Node> getRange(int start, int rangeLength) =>