Enable fourmolu for ghc-9

Author: jneira

cabal-ghc901.project

@@ -9,7 +9,7 @@ packages:
         -- ./plugins/hls-tactics-plugin
         -- ./plugins/hls-brittany-plugin
         -- ./plugins/hls-stylish-haskell-plugin
-        -- ./plugins/hls-fourmolu-plugin
+         ./plugins/hls-fourmolu-plugin
         -- ./plugins/hls-class-plugin
          ./plugins/hls-eval-plugin
          ./plugins/hls-explicit-imports-plugin
@@ -61,11 +61,11 @@ source-repository-package
 
 write-ghc-environment-files: never
 
-index-state: 2021-09-16T07:00:23Z
+index-state: 2021-10-04T02:41:06Z
 
 constraints:
     -- These plugins don't work on GHC9 yet
-    haskell-language-server -brittany -class -fourmolu -stylishhaskell -tactic
+    haskell-language-server -brittany -class -stylishhaskell -tactic
 
 allow-newer:
     floskell:base,