Make arguments to some Document and Element methods non-optional

LayoutTests/fast/dom/Element/missing-arguments.html

Index: LayoutTests/fast/dom/Element/missing-arguments.html
diff --git a/LayoutTests/fast/dom/Element/missing-arguments.html b/LayoutTests/fast/dom/Element/missing-arguments.html
index 02e016012428fc95251d7c085d23bd78d23599c5..19c9d54029874e8f4dac6c2419bdabfd8a5060d7 100644
--- a/LayoutTests/fast/dom/Element/missing-arguments.html
+++ b/LayoutTests/fast/dom/Element/missing-arguments.html
@@ -10,6 +10,9 @@ var element = document.createElementNS("http://example.com/", "example");
     "getAttribute()",
     "getAttributeNS()",
     "getAttributeNS('http://example.com/')",
+    "getAttributeNode()",
+    "getAttributeNodeNS()",
+    "getAttributeNodeNS('http://www.w3.org/2000/svg')",
     "getElementsByClassName()",
     "getElementsByTagName()",
     "getElementsByTagNameNS()",
@@ -19,11 +22,14 @@ var element = document.createElementNS("http://example.com/", "example");
     "removeAttribute()",
     "removeAttributeNS()",
     "removeAttributeNS('http://example.com/')",
+    "removeAttributeNode()",
     "setAttribute()",
     "setAttribute('example')",
     "setAttributeNS()",
     "setAttributeNS('http://example.com/')",
-    "setAttributeNS('http://example.com/', 'example')"
+    "setAttributeNS('http://example.com/', 'example')",
+    "setAttributeNode()",
+    "setAttributeNodeNS()"
 ].forEach(function(expr)
 {
     shouldThrow("element." + expr);