fixup! Make cabal-install use parsec parser

Author: phadej

cabal-testsuite/Test/Cabal/Prelude.hs

@@ -139,7 +139,7 @@ setup' cmd args = do
         then runProgramM cabalProgram full_args
         else do
             pdfile <- liftIO $ tryFindPackageDesc (testCurrentDir env)
-            pdesc <- liftIO $ readPackageDescription (testVerbosity env) pdfile
+            pdesc <- liftIO $ readGenericPackageDescription (testVerbosity env) pdfile
             if buildType (packageDescription pdesc) == Just Simple
                 then runM (testSetupPath env) full_args
                 -- Run the Custom script!

stack.yaml

@@ -53,10 +53,10 @@ extra-deps:
 - vector-0.12.0.0
 - zlib-0.6.1.1
 flags:
-#  Cabal:
-#    parsec: true
-#  cabal-install:
-#    parsec: true
+  Cabal:
+    parsec: true
+  cabal-install:
+    parsec: true
   time-locale-compat:
     old-locale: false
 nix: