Support initial generic config for plugins

This enables opt-in  plugins, i.e. plugins that are not enabled by default

Author: pepeiborra

hls-test-utils/src/Test/Hls.hs

@@ -73,7 +73,7 @@ import           GHC.IO.Handle
 import           GHC.Stack                       (emptyCallStack)
 import           Ide.Plugin.Config               (Config, PluginConfig,
                                                   cabalFormattingProvider,
-                                                  defConfig, formattingProvider,
+                                                  formattingProvider,
                                                   plugins)
 import           Ide.Types
 import           Language.LSP.Test
@@ -135,13 +135,13 @@ goldenWithHaskellDoc plugin title testDataDir path desc ext act =
 
 
 runSessionWithServer :: PluginDescriptor IdeState -> FilePath -> Session a -> IO a
-runSessionWithServer plugin = runSessionWithServer' [plugin] def def fullCaps
+runSessionWithServer plugin = runSessionWithServer' [plugin] (defConfigForPlugins $ IdePlugins [plugin]) def fullCaps
 
 runSessionWithServerFormatter :: PluginDescriptor IdeState -> String -> PluginConfig -> FilePath -> Session a -> IO a
 runSessionWithServerFormatter plugin formatter conf =
   runSessionWithServer'
     [plugin]
-    def
+    (defConfigForPlugins $ IdePlugins [plugin])
       { formattingProvider = T.pack formatter
       , plugins = M.singleton (T.pack formatter) conf
       }
@@ -194,7 +194,7 @@ runSessionWithCabalServerFormatter :: PluginDescriptor IdeState -> String -> Plu
 runSessionWithCabalServerFormatter plugin formatter conf =
   runSessionWithServer'
     [plugin]
-    (defConfig mempty)
+    (defConfigForPlugins $ IdePlugins [plugin])
       { cabalFormattingProvider = T.pack formatter
       , plugins = M.singleton (T.pack formatter) conf
       }