Make arguments to Document methods non-optional

LayoutTests/fast/dom/Document/script-tests/createElementNS-namespace-err.js

Index: LayoutTests/fast/dom/Document/script-tests/createElementNS-namespace-err.js
diff --git a/LayoutTests/fast/dom/Document/script-tests/createElementNS-namespace-err.js b/LayoutTests/fast/dom/Document/script-tests/createElementNS-namespace-err.js
index 5f7cbf7114cd8ed077441e463eb57c1a499c5c8b..47ab423e4369d9726732d724368af63bb4f90473 100644
--- a/LayoutTests/fast/dom/Document/script-tests/createElementNS-namespace-err.js
+++ b/LayoutTests/fast/dom/Document/script-tests/createElementNS-namespace-err.js
@@ -37,10 +37,10 @@ function assertEquals(actual, expect, m)
 var allNSTests = [
    { args: [undefined, undefined] },
    { args: [null, undefined] },
-   { args: [undefined, null], code: 5 },
-   { args: [null, null], code: 5 },
+   { args: [undefined, null] },
+   { args: [null, null] },
    { args: [null, ""], code: 5 },
-   { args: ["", null], code: 5 },
+   { args: ["", null] },
    { args: ["", ""], code: 5 },
    { args: [null, "<div>"], code: 5 },
    { args: [null, "0div"], code: 5 },
@@ -86,7 +86,7 @@ var allNSTests = [
 
 var allNoNSTests = [
    { args: [undefined] },
-   { args: [null], code: 5 },
+   { args: [null] },
    { args: [""], code: 5 },
    { args: ["<div>"], code: 5 },
    { args: ["0div"], code: 5 },
@@ -157,10 +157,6 @@ function runNSTests(tests, doc, createFunctionName)
     }
 }
 
-// Moz throws a "Not enough arguments" exception in these, we don't:
-shouldBeEqualToString("document.createElementNS().toString()", "[object Element]");
-shouldBeEqualToString("document.createElementNS(\"http://www.example.com\").toString()", "[object Element]");
-
 debug("HTML tests:")
 runNSTests(allNSTests, document, "createElementNS");
 runNSTests(allNoNSTests, document, "createElement");