this test works now, apparently

testsuite/tests/ghc-regress/programs/maessen-hashtab/test.T

 
 test('maessen_hashtab', composes([reqlib('QuickCheck'),
                                   skip_if_fast,
-                                  extra_run_opts('99999'),
-                                  expect_broken(1546)]),
+                                  extra_run_opts('99999')]),
      multimod_compile_and_run, ['HashTest', '-cpp'])
 clean_o_hi()