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Simon Peyton Jones authored
Trac #8912 pointed out that GHC 7.4 and 7.6 have omitted this test, although 7.2 and earlier had it. This patch puts the test back in, and refactors a little.
a8b7b28c
Trac #8912 pointed out that GHC 7.4 and 7.6 have omitted this test, although 7.2 and earlier had it. This patch puts the test back in, and refactors a little.