test: add create raw EventEmitter object

This test currently fails, but I think it should succeed.  (Pull request as example of bug, basically.)  The bug is that for some reason these two forms are not parallel:

````js
e = new require('events').EventEmitter(); // undefined
s = new require('http').Server(); // http.Server object
````

For some reason adding parens to the first form makes it returns the expected result:

````js
e = new (require('events').EventEmitter)();
````

(The `http.Server` version also works with parens in the same place.)