Fix broken call-hierarchy-plugin-tests for type signatures (#3188)

* Fix broken tests for signatures

* Remove unused Maybe

* Refactir prepare

* Refactor incoming and outgoing calls

* Fix doc format

Co-authored-by: Pepe Iborra <pepeiborra@gmail.com>
Co-authored-by: Michael Peyton Jones <me@michaelpj.com>

Author: 3 people

plugins/hls-call-hierarchy-plugin/README.md

@@ -23,6 +23,9 @@ Enabled by default. You can disable it in your editor settings whenever you like
 ```
 
 ## Change log
+### 1.1.0.0
+- Support ghc-9.4.
+- Refactor code base and force four space indent.
 ### 1.0.3.0
 Remove force update `HieDb` logic in queries.
 ### 1.0.1.0

plugins/hls-call-hierarchy-plugin/hls-call-hierarchy-plugin.cabal

@@ -27,10 +27,8 @@ library
   build-depends:
     , aeson
     , base                  >=4.12 && <5
-    , bytestring
     , containers
     , extra
-    , ghc
     , ghcide                ^>= 1.8
     , hiedb
     , hls-plugin-api        ^>= 1.5

plugins/hls-call-hierarchy-plugin/src/Ide/Plugin/CallHierarchy.hs

@@ -7,7 +7,8 @@ import           Language.LSP.Types
 
 descriptor :: PluginDescriptor IdeState
 descriptor = (defaultPluginDescriptor X.callHierarchyId)
-  { Ide.Types.pluginHandlers = mkPluginHandler STextDocumentPrepareCallHierarchy X.prepareCallHierarchy
-                            <> mkPluginHandler SCallHierarchyIncomingCalls X.incomingCalls
-                            <> mkPluginHandler SCallHierarchyOutgoingCalls X.outgoingCalls
-  }
+    { Ide.Types.pluginHandlers =
+        mkPluginHandler STextDocumentPrepareCallHierarchy X.prepareCallHierarchy
+     <> mkPluginHandler SCallHierarchyIncomingCalls X.incomingCalls
+     <> mkPluginHandler SCallHierarchyOutgoingCalls X.outgoingCalls
+    }