Upgrade lsp4ij to 0.13.0

Author: rockofox

build.gradle.kts

@@ -20,7 +20,7 @@ repositories {
 dependencies {
     intellijPlatform {
         intellijIdeaCommunity("2023.3.6")
-        plugin("com.redhat.devtools.lsp4ij:0.9.0")
+        plugin("com.redhat.devtools.lsp4ij:0.13.0")
         pluginVerifier()
         zipSigner()
         instrumentationTools()

src/main/kotlin/boo/fox/haskelllsp/HaskellLanguageServerFactory.kt

@@ -48,10 +48,10 @@ class HaskellLanguageServer(project: Project) : ProcessStreamConnectionProvider(
 
 // enabling the semanticTokens plugin is required for semantic tokens support
 class HaskellLanguageClient(project: Project) : LanguageClientImpl(project) {
-    override fun createSettings(): Any? =
+    override fun createSettings(): Any =
         mapOf("haskell" to mapOf("plugin" to mapOf("semanticTokens" to mapOf("globalOn" to true))))
 
-    override fun handleServerStatusChanged(serverStatus: ServerStatus?) {
+    override fun handleServerStatusChanged(serverStatus: ServerStatus) {
         if (serverStatus == ServerStatus.started) {
             triggerChangeConfiguration()
         }