Merge pull request #6132 from haskell/enable-cmd-run-script-test

Issue 5775 seems to be fixed, let's see

cabal-testsuite/PackageTests/NewBuild/CmdRun/Script/cabal.out

+# cabal v2-run
+Resolving dependencies...
+Build profile: -w ghc-<GHCVER> -O1
+In order, the following will be built:
+ - fake-package-0 (exe:script) (first run)
+Configuring executable 'script' for fake-package-0..
+Preprocessing executable 'script' for fake-package-0..
+Building executable 'script' for fake-package-0..

cabal-testsuite/PackageTests/NewBuild/CmdRun/Script/cabal.test.hs

 import Test.Cabal.Prelude
 
 main = cabalTest $ do
-    expectBroken 5775 $ cabal' "v2-run" ["script.hs"]
-    return ()
+    res <- cabal' "v2-run" ["script.hs"]
+    assertOutputContains "Hello World" res

cabal-testsuite/PackageTests/NewBuild/CmdRun/Script/script.hs

 #! /usr/bin/env cabal
 {- cabal:
-build-depends: base ^>= 4.0
+build-depends: base >= 4.3 && <5
 -}
 {-# LANGUAGE BangPatterns #-}
 {-# LANGUAGE ScopedTypeVariables #-}
@@ -8,4 +8,4 @@ build-depends: base ^>= 4.0
 import Prelude
 
 main :: IO ()
-main = return ()
+main = putStrLn "Hello World"