Reactivate a test that was failing for old GHC versions

Author: dschrempf

plugins/hls-eval-plugin/test/Main.hs

@@ -142,9 +142,7 @@ tests =
   , goldenWithEval "Can handle eval inside nested comment properly" "TNested" "hs"
   , goldenWithEval "Test on last line insert results correctly" "TLastLine" "hs"
   , testGroup "with preprocessors"
-    [ knownBrokenInEnv [HostOS Windows]
-        "CPP eval on Windows and/or GHC <= 8.6 fails for some reasons" $
-        goldenWithEval "CPP support" "TCPP" "hs"
+    [ goldenWithEval "CPP support" "TCPP" "hs"
     , goldenWithEval "Literate Haskell Bird Style" "TLHS" "lhs"
     ]
   , goldenWithEval "Works with NoImplicitPrelude" "TNoImplicitPrelude" "hs"