Remove more workarounds for GHCs < 9.2 (#4092) (#4098)

* Remove more workarounds for GHCs < 9.2 (#4092)

* Delete removed module from cabal file

* Remove unused package

ghcide/ghcide.cabal

@@ -285,7 +285,7 @@ library ghcide-test-utils
   visibility: public
   default-language:   GHC2021
 
-  hs-source-dirs: test/src test/cabal 
+  hs-source-dirs: test/src test/cabal
   exposed-modules:
     Development.IDE.Test
     Development.IDE.Test.Runfiles
@@ -306,14 +306,13 @@ library ghcide-test-utils
       lsp-test ^>= 0.17,
       tasty-hunit >= 0.10,
       text,
-      row-types,
 
   default-extensions:
       LambdaCase
       OverloadedStrings
       RecordWildCards
       ViewPatterns
-  
+
 test-suite ghcide-tests
   import: warnings
   type:               exitcode-stdio-1.0
@@ -365,7 +364,7 @@ test-suite ghcide-tests
   if impl(ghc <9.3)
     build-depends: ghc-typelits-knownnat
 
-  hs-source-dirs:     test/exe 
+  hs-source-dirs:     test/exe
   ghc-options:        -threaded -O0
 
   main-is:            Main.hs
@@ -392,7 +391,6 @@ test-suite ghcide-tests
     NonLspCommandLine
     OpenCloseTest
     OutlineTests
-    PluginParsedResultTests
     PluginSimpleTests
     PositionMappingTests
     PreprocessorTests

ghcide/test/exe/CodeLensTests.hs

@@ -86,7 +86,7 @@ addSigLensesTests =
         , ("rank2Test (k :: forall a . a -> a) = (k 233 :: Int, k \"QAQ\")", "rank2Test :: (forall a. a -> a) -> (Int, String)")
         , ("symbolKindTest = Proxy @\"qwq\"", "symbolKindTest :: Proxy \"qwq\"")
         , ("promotedKindTest = Proxy @Nothing", if ghcVersion >= GHC96 then "promotedKindTest :: Proxy Nothing" else "promotedKindTest :: Proxy 'Nothing")
-        , ("typeOperatorTest = Refl", if ghcVersion >= GHC92 then "typeOperatorTest :: forall {k} {a :: k}. a :~: a" else "typeOperatorTest :: a :~: a")
+        , ("typeOperatorTest = Refl", "typeOperatorTest :: forall {k} {a :: k}. a :~: a")
         , ("notInScopeTest = mkCharType", "notInScopeTest :: String -> Data.Data.DataType")
         , ("aVeryLongSignature a b c d e f g h i j k l m n = a && b && c && d && e && f && g && h && i && j && k && l && m && n", "aVeryLongSignature :: Bool -> Bool -> Bool -> Bool -> Bool -> Bool -> Bool -> Bool -> Bool -> Bool -> Bool -> Bool -> Bool -> Bool -> Bool")
         ]

ghcide/test/exe/DependentFileTest.hs

@@ -7,7 +7,6 @@ module DependentFileTest (tests) where
 import           Control.Monad.IO.Class         (liftIO)
 import           Data.Row
 import qualified Data.Text                      as T
-import           Development.IDE.GHC.Compat     (GhcVersion (..), ghcVersion)
 import           Development.IDE.Test           (expectDiagnostics)
 import           Development.IDE.Types.Location
 import           Language.LSP.Protocol.Message
@@ -45,7 +44,7 @@ tests = testGroup "addDependentFile"
         _ <- createDoc "Foo.hs" "haskell" fooContent
         doc <- createDoc "Baz.hs" "haskell" bazContent
         expectDiagnostics
-            [("Foo.hs", [(DiagnosticSeverity_Error, if ghcVersion >= GHC92 then (4,11) else (4, 6), "Couldn't match type")])]
+            [("Foo.hs", [(DiagnosticSeverity_Error, (4,11), "Couldn't match type")])]
         -- Now modify the dependent file
         liftIO $ writeFile depFilePath "B"
         sendNotification SMethod_WorkspaceDidChangeWatchedFiles $ DidChangeWatchedFilesParams

ghcide/test/exe/FindDefinitionAndHoverTests.hs

@@ -113,13 +113,11 @@ tests = let
   typeDefinitionTests = [ tst (getTypeDefinitions, checkDefs) aaaL14 sourceFilePath (pure tcData) "Saturated data con"
                         , tst (getTypeDefinitions, checkDefs) aL20 sourceFilePath (pure [ExpectNoDefinitions]) "Polymorphic variable"]
 
-  recordDotSyntaxTests
-    | ghcVersion >= GHC92 =
-        [ tst (getHover, checkHover) (Position 17 24) (T.unpack "RecordDotSyntax.hs") (pure [ExpectHoverText ["x :: MyRecord"]]) "hover over parent"
-        , tst (getHover, checkHover) (Position 17 25) (T.unpack "RecordDotSyntax.hs") (pure [ExpectHoverText ["_ :: MyChild"]]) "hover over dot shows child"
-        , tst (getHover, checkHover) (Position 17 26) (T.unpack "RecordDotSyntax.hs") (pure [ExpectHoverText ["_ :: MyChild"]]) "hover over child"
-        ]
-    | otherwise = []
+  recordDotSyntaxTests =
+    [ tst (getHover, checkHover) (Position 17 24) (T.unpack "RecordDotSyntax.hs") (pure [ExpectHoverText ["x :: MyRecord"]]) "hover over parent"
+    , tst (getHover, checkHover) (Position 17 25) (T.unpack "RecordDotSyntax.hs") (pure [ExpectHoverText ["_ :: MyChild"]]) "hover over dot shows child"
+    , tst (getHover, checkHover) (Position 17 26) (T.unpack "RecordDotSyntax.hs") (pure [ExpectHoverText ["_ :: MyChild"]]) "hover over child"
+    ]
 
   test runDef runHover look expect = testM runDef runHover look (return expect)
 
@@ -157,8 +155,8 @@ tests = let
   spaceL37 = Position 41  24 ; space = [ExpectNoDefinitions, ExpectHoverText [":: Char"]]
   docL41 = Position 45  1  ;  doc    = [ExpectHoverText ["Recognizable docs: kpqz"]]
                            ;  constr = [ExpectHoverText ["Monad m"]]
-  eitL40 = Position 44 28  ;  kindE  = [ExpectHoverText [if ghcVersion >= GHC92 then ":: Type -> Type -> Type\n" else ":: * -> * -> *\n"]]
-  intL40 = Position 44 34  ;  kindI  = [ExpectHoverText [if ghcVersion >= GHC92 then ":: Type\n" else ":: *\n"]]
+  eitL40 = Position 44 28  ;  kindE  = [ExpectHoverText [":: Type -> Type -> Type\n"]]
+  intL40 = Position 44 34  ;  kindI  = [ExpectHoverText [":: Type\n"]]
   tvrL40 = Position 44 37  ;  kindV  = [ExpectHoverText [":: * -> *\n"]]
   intL41 = Position 45 20  ;  litI   = [ExpectHoverText ["7518"]]
   chrL36 = Position 41 24  ;  litC   = [ExpectHoverText ["'f'"]]

ghcide/test/exe/Main.hs

@@ -56,7 +56,6 @@ import OutlineTests
 import HighlightTests
 import FindDefinitionAndHoverTests
 import PluginSimpleTests
-import PluginParsedResultTests
 import PreprocessorTests
 import THTests
 import SymlinkTests
@@ -103,7 +102,6 @@ main = do
     , HighlightTests.tests
     , FindDefinitionAndHoverTests.tests
     , PluginSimpleTests.tests
-    , PluginParsedResultTests.tests
     , PreprocessorTests.tests
     , THTests.tests
     , SymlinkTests.tests

ghcide/test/exe/TestUtils.hs

@@ -163,9 +163,6 @@ xfail = flip expectFailBecause
 ignoreInWindowsBecause :: String -> TestTree -> TestTree
 ignoreInWindowsBecause = ignoreFor (BrokenForOS Windows)
 
-ignoreForGHC92Plus :: String -> TestTree -> TestTree
-ignoreForGHC92Plus = ignoreFor (BrokenForGHC [GHC92, GHC94, GHC96, GHC98])
-
 knownBrokenForGhcVersions :: [GhcVersion] -> String -> TestTree -> TestTree
 knownBrokenForGhcVersions ghcVers = knownBrokenFor (BrokenForGHC ghcVers)
 

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

@@ -78,26 +78,22 @@ tests =
         else
           "-- No instance for (Num String) arising from a use of `+'\n-- In the expression: \"a\" + \"bc\"\n-- In an equation for `res': res = \"a\" + \"bc\""
 
-
       evalInFile "T8.hs" "-- >>> \"" "-- lexical error in string/character literal at end of input"
       evalInFile "T8.hs" "-- >>> 3 `div` 0" "-- divide by zero" -- The default for marking exceptions is False
   , goldenWithEval "Applies file LANGUAGE extensions" "T9" "hs"
-  , goldenWithEval' "Evaluate a type with :kind!" "T10" "hs" (if ghcVersion >= GHC92 then "ghc92.expected" else "expected")
-  , goldenWithEval' "Reports an error for an incorrect type with :kind!" "T11" "hs" (
-        if ghcVersion >= GHC94 then "ghc94.expected"
-        else if ghcVersion >= GHC92 then "ghc92.expected"
-        else "expected"
-      )
-  , goldenWithEval' "Shows a kind with :kind" "T12" "hs" (if ghcVersion >= GHC92 then "ghc92.expected" else "expected")
-  , goldenWithEval' "Reports an error for an incorrect type with :kind" "T13" "hs" (if ghcVersion >= GHC92 then "ghc92.expected" else "expected")
+  , goldenWithEval "Evaluate a type with :kind!" "T10" "hs"
+  , goldenWithEval' "Reports an error for an incorrect type with :kind!" "T11" "hs"
+        (if ghcVersion >= GHC94 then "ghc94.expected" else "expected")
+  , goldenWithEval "Shows a kind with :kind" "T12" "hs"
+  , goldenWithEval "Reports an error for an incorrect type with :kind" "T13" "hs"
   , goldenWithEval' "Returns a fully-instantiated type for :type" "T14" "hs" (if ghcVersion >= GHC98 then "ghc98.expected" else "expected") -- See https://gitlab.haskell.org/ghc/ghc/-/issues/24069
   , knownBrokenForGhcVersions [GHC92, GHC94, GHC96, GHC98] "type +v does not work anymore with 9.2" $ goldenWithEval "Returns an uninstantiated type for :type +v, admitting multiple whitespaces around arguments" "T15" "hs"
   , goldenWithEval "Returns defaulted type for :type +d, admitting multiple whitespaces around arguments" "T16" "hs"
-  , goldenWithEval' ":type reports an error when given with unknown +x option" "T17" "hs" (if ghcVersion >= GHC92 then "ghc92.expected" else "expected")
+  , goldenWithEval ":type reports an error when given with unknown +x option" "T17" "hs"
   , goldenWithEval "Reports an error when given with unknown command" "T18" "hs"
   , goldenWithEval "Returns defaulted type for :type +d reflecting the default declaration specified in the >>> prompt" "T19" "hs"
   , expectFailBecause "known issue - see a note in P.R. #361" $
-      goldenWithEval' ":type +d reflects the `default' declaration of the module" "T20" "hs" (if ghcVersion >= GHC92 then "ghc92.expected" else "expected")
+      goldenWithEval ":type +d reflects the `default' declaration of the module" "T20" "hs"
   , testCase ":type handles a multilined result properly" $
       evalInFile "T21.hs" "-- >>> :type fun" $ T.unlines [
         "-- fun",
@@ -125,13 +121,10 @@ tests =
   , goldenWithEvalAndFs "Transitive local dependency"  (FS.directProjectMulti ["TTransitive.hs", "TLocalImport.hs", "Util.hs"]) "TTransitive" "hs"
   -- , goldenWithEval "Local Modules can be imported in a test" "TLocalImportInTest" "hs"
   , goldenWithEval "Setting language option TupleSections" "TLanguageOptionsTupleSections" "hs"
-  , goldenWithEval' ":set accepts ghci flags" "TFlags" "hs" (if ghcVersion >= GHC98 then "ghc98.expected" else if ghcVersion >= GHC92 then "ghc92.expected" else "expected")
+  , goldenWithEval' ":set accepts ghci flags" "TFlags" "hs" (if ghcVersion >= GHC98 then "ghc98.expected" else "expected")
   , testCase ":set -fprint-explicit-foralls works" $ do
       evalInFile "T8.hs" "-- >>> :t id" "-- id :: a -> a"
-      evalInFile "T8.hs" "-- >>> :set -fprint-explicit-foralls\n-- >>> :t id"
-        (if ghcVersion >= GHC92
-           then "-- id :: forall a. a -> a"
-           else "-- id :: forall {a}. a -> a")
+      evalInFile "T8.hs" "-- >>> :set -fprint-explicit-foralls\n-- >>> :t id" "-- id :: forall a. a -> a"
   , goldenWithEval "The default language extensions for the eval plugin are the same as those for ghci" "TSameDefaultLanguageExtensionsAsGhci" "hs"
   , goldenWithEval "IO expressions are supported, stdout/stderr output is ignored" "TIO" "hs"
   , goldenWithEvalAndFs "Property checking" cabalProjectFS "TProperty" "hs"

plugins/hls-eval-plugin/test/testdata/T10.expected.hs

@@ -7,5 +7,5 @@ type Dummy = 1 + 1
 -- >>> type N = 1
 -- >>> type M = 40
 -- >>> :kind! N + M + 1
--- N + M + 1 :: Nat
+-- N + M + 1 :: Natural
 -- = 42

plugins/hls-eval-plugin/test/testdata/T11.expected.hs

@@ -1,4 +1,4 @@
 module T11 where
 
 -- >>> :kind! A
--- Not in scope: type constructor or class ‘A’
+-- Not in scope: type constructor or class `A'

plugins/hls-eval-plugin/test/testdata/T12.expected.hs

@@ -7,4 +7,4 @@ type Dummy = 1 + 1
 -- >>> type N = 1
 -- >>> type M = 40
 -- >>> :kind N + M + 1
--- N + M + 1 :: Nat
+-- N + M + 1 :: Natural

plugins/hls-eval-plugin/test/testdata/T13.expected.hs

@@ -1,4 +1,4 @@
 module T13 where
 
 -- >>> :kind A
--- Not in scope: type constructor or class ‘A’
+-- Not in scope: type constructor or class `A'

plugins/hls-eval-plugin/test/testdata/T17.expected.hs

@@ -1,4 +1,4 @@
 module T17 where
 
 -- >>> :type  +no 42
--- parse error on input ‘+’
+-- parse error on input `+'

plugins/hls-eval-plugin/test/testdata/TFlags.expected.hs

@@ -20,8 +20,9 @@ module TFlags where
 Options apply only in the section where they are defined (unless they are in the setup section), so this will fail:
 
 >>> class L a b c
-Too many parameters for class ‘L’
+Too many parameters for class `L'
 (Enable MultiParamTypeClasses to allow multi-parameter classes)
+In the class declaration for `L'
 -}
 
 
@@ -31,8 +32,9 @@ Options apply to all tests in the same section after their declaration.
 Not set yet:
 
 >>> class D
-No parameters for class ‘D’
+No parameters for class `D'
 (Enable MultiParamTypeClasses to allow no-parameter classes)
+In the class declaration for `D'
 
 Now it works: