Node.appendChild should throw TypeError when newChild is omitted

LayoutTests/fast/js/script-tests/dot-node-base-exception.js

Index: LayoutTests/fast/js/script-tests/dot-node-base-exception.js
diff --git a/LayoutTests/fast/js/script-tests/dot-node-base-exception.js b/LayoutTests/fast/js/script-tests/dot-node-base-exception.js
index 201e0a9b04fc41acb3b315cc766799078b26485b..2035bbac88dd03cbf44da4fefb05c52b01a14711 100644
--- a/LayoutTests/fast/js/script-tests/dot-node-base-exception.js
+++ b/LayoutTests/fast/js/script-tests/dot-node-base-exception.js
@@ -2,5 +2,5 @@ description(
 "This test checks that a correct exception is raised when calculating the base value of a dot expression fails."
 );
 
-// Should be a DOM exception, not just some "TypeError: Null value".
-shouldThrow('(document.appendChild()).foobar()', '"NotFoundError: Failed to execute \'appendChild\' on \'Node\': The new child element is null."');
+// Should throw TypeError with appropriate message.
+shouldThrow('(document.appendChild()).foobar()', '"TypeError: Failed to execute \'appendChild\' on \'Node\': 1 argument required, but only 0 present."');