Include .check files in extra-sources

Author: phadej

Cabal/Cabal.cabal

@@ -86,16 +86,19 @@ extra-source-files:
   tests/ParserTests/regressions/generics-sop.expr
   tests/ParserTests/regressions/generics-sop.format
   tests/ParserTests/regressions/haddock-api-2.18.1-check.cabal
+  tests/ParserTests/regressions/haddock-api-2.18.1-check.check
   tests/ParserTests/regressions/issue-5055.cabal
   tests/ParserTests/regressions/issue-5055.expr
   tests/ParserTests/regressions/issue-5055.format
   tests/ParserTests/regressions/issue-774.cabal
+  tests/ParserTests/regressions/issue-774.check
   tests/ParserTests/regressions/issue-774.expr
   tests/ParserTests/regressions/issue-774.format
   tests/ParserTests/regressions/leading-comma.cabal
   tests/ParserTests/regressions/leading-comma.expr
   tests/ParserTests/regressions/leading-comma.format
   tests/ParserTests/regressions/nothing-unicode.cabal
+  tests/ParserTests/regressions/nothing-unicode.check
   tests/ParserTests/regressions/nothing-unicode.expr
   tests/ParserTests/regressions/nothing-unicode.format
   tests/ParserTests/regressions/shake.cabal

cabal-dev-scripts/src/GenExtraSourceFiles.hs

@@ -60,7 +60,7 @@ whitelistedFiles = [ "ghc", "ghc-pkg", "ghc-7.10"
 whitelistedExtensionss :: [String]
 whitelistedExtensionss = map ('.' : )
     [ "hs", "lhs", "c", "h", "sh", "cabal", "hsc"
-    , "err", "out", "in", "project", "format", "errors", "expr"
+    , "err", "out", "in", "project", "format", "errors", "expr", "check"
     ]
 
 getOtherModulesFiles :: GenericPackageDescription -> IO [FilePath]