Simplify EventTarget bindings generation

LayoutTests/fast/events/event-listener-arguments-expected.txt

Index: LayoutTests/fast/events/event-listener-arguments-expected.txt
diff --git a/LayoutTests/fast/events/event-listener-arguments-expected.txt b/LayoutTests/fast/events/event-listener-arguments-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..780b2057f95dc88e37cbabd18fdc35299b662e4a
--- /dev/null
+++ b/LayoutTests/fast/events/event-listener-arguments-expected.txt
@@ -0,0 +1,28 @@
+EventTarget.addEventListener and EventTarget.removeEventLister should throw on invalid arguments.
+
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+Signature:
+void addEventListener(DOMString type, EventListener listener, optional boolean useCapture)
+PASS document.addEventListener() threw exception TypeError: Failed to execute 'addEventListener' on 'EventTarget': 2 arguments required, but only 0 present..
+PASS document.addEventListener("foo") threw exception TypeError: Failed to execute 'addEventListener' on 'EventTarget': 2 arguments required, but only 1 present..
+PASS document.addEventListener("foo", listener) did not throw exception.
+PASS document.addEventListener("", listener) did not throw exception.
+PASS document.addEventListener("", function(){}) did not throw exception.
+PASS document.addEventListener("bar", listener, false) did not throw exception.
+PASS document.addEventListener("bar", listener, true) did not throw exception.
+
+Signature:
+void removeEventListener(DOMString type, EventListener listener, optional boolean useCapture)
+PASS document.removeEventListener() threw exception TypeError: Failed to execute 'removeEventListener' on 'EventTarget': 2 arguments required, but only 0 present..
+PASS document.removeEventListener("foo") threw exception TypeError: Failed to execute 'removeEventListener' on 'EventTarget': 2 arguments required, but only 1 present..
+PASS document.removeEventListener("foo", listener) did not throw exception.
+PASS document.removeEventListener("foo", listener, true) did not throw exception.
+PASS document.removeEventListener("bar", listener, false) did not throw exception.
+PASS document.removeEventListener("bar", listener, false) did not throw exception.
+PASS document.addEventListener("bar", listener, true) did not throw exception.
+PASS successfullyParsed is true
+
+TEST COMPLETE
+