Right now, when executing the following source block

#+begin_src haskell :results output
[1..10]
"hello" == "hello"
   #+end_src

I get the following output:

#+RESULTS:
   : True

Whereas (for me) the desired result would be

#+RESULTS:
   : [1,2,3,4,5,6,7,8,9,10]
   : True

I created the attached patch that achieves the desired result.

Please notice that the default behaviour (without :results output) remains
unchanged.