auto merge of #3828 : cgaebel/servo/layout-node-dumping, r=pcwalton

r? @pcwalton

components/script/dom/element.rs

@@ -73,7 +73,7 @@ impl Reflectable for Element {
     }
 }
 
-#[deriving(PartialEq)]
+#[deriving(PartialEq, Show)]
 #[jstraceable]
 pub enum ElementTypeId {
     HTMLElementTypeId,
@@ -1172,4 +1172,3 @@ impl<'a> style::TElement<'a> for JSRef<'a, Element> {
         }
     }
 }
-

components/script/dom/node.rs

@@ -251,7 +251,7 @@ impl LayoutDataRef {
 }
 
 /// The different types of nodes.
-#[deriving(PartialEq)]
+#[deriving(PartialEq, Show)]
 #[jstraceable]
 pub enum NodeTypeId {
     DoctypeNodeTypeId,