Reviewed by Darin.

    Reviewed by Darin.

	<rdar://problem/4031718> REGRESSION (401-401+): Safari reproducible crash setting up scope in JSLazyEventListener::parseCode authenticating to bugweb

	* khtml/ecma/kjs_events.cpp:
	(JSLazyEventListener::parseCode): If originalNode is NULL, don't
	mess with the scope chain.

        * khtml/html/html_baseimpl.cpp:
        (HTMLBodyElementImpl::parseHTMLAttribute): For handlers that are
	delcared on body but set on the document, pass NULL to avoid
	swizzling the scope chain. It turns out that this is what browsers
	do, and it finesses the crash.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@8756 268f45cc-cd09-0410-ab3c-d52691b4dbfc