id == ATOM_KEY(cx->runtime->atomState.callerAtom) ||
fun_delProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp){    /* Make delete f.length fail even though length is in f.__proto__. */    if (!JSVAL_IS_INT(id)) {	if (id == ATOM_KEY(cx->runtime->atomState.arityAtom) ||	    id == ATOM_KEY(cx->runtime->atomState.lengthAtom) ||	    id == ATOM_KEY(cx->runtime->atomState.callerAtom) ||	    id == ATOM_KEY(cx->runtime->atomState.nameAtom)) {	    *vp = JSVAL_FALSE;	}    }    return JS_TRUE;}