Remove support for Document.createEvent() without argument

LayoutTests/svg/dom/document-createEvent-mandatory-arg-expected.txt

Index: LayoutTests/svg/dom/document-createEvent-mandatory-arg-expected.txt
diff --git a/LayoutTests/svg/dom/document-createEvent-mandatory-arg-expected.txt b/LayoutTests/svg/dom/document-createEvent-mandatory-arg-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4794d8c33e0e93c7a7658bae7b5acb0d78bd060e
--- /dev/null
+++ b/LayoutTests/svg/dom/document-createEvent-mandatory-arg-expected.txt
@@ -0,0 +1,13 @@
+Tests that Document.createEvent() throws for SVG Documents when given no argument.
+
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+PASS svgDoc.__proto__ is XMLDocument.prototype
+PASS svgDoc.__proto__.__proto__ is Document.prototype
+PASS svgDoc.createEvent() threw exception TypeError: Failed to execute 'createEvent' on 'Document': 1 argument required, but only 0 present..
+PASS svgDoc.createEvent('MouseEvents') did not throw exception.
+PASS successfullyParsed is true
+
+TEST COMPLETE
+