Use LanguageServerName in more places (#18167)

This pushes the new LanguageServerName type to more places.

As both languages and language servers were identified by Arc<str>, it
was
sometimes hard to tell which was intended.

Release Notes:

- N/A

crates/project/src/lsp_store.rs

@@ -103,7 +103,7 @@ pub struct LocalLspStore {
     supplementary_language_servers:
         HashMap<LanguageServerId, (LanguageServerName, Arc<LanguageServer>)>,
     prettier_store: Model<PrettierStore>,
-    current_lsp_settings: HashMap<Arc<str>, LspSettings>,
+    current_lsp_settings: HashMap<LanguageServerName, LspSettings>,
     _subscription: gpui::Subscription,
 }
 
@@ -138,7 +138,7 @@ impl RemoteLspStore {}
 
 pub struct SshLspStore {
     upstream_client: AnyProtoClient,
-    current_lsp_settings: HashMap<Arc<str>, LspSettings>,
+    current_lsp_settings: HashMap<LanguageServerName, LspSettings>,
 }
 
 #[allow(clippy::large_enum_variant)]
@@ -316,8 +316,8 @@ impl LspStore {
 
     pub fn swap_current_lsp_settings(
         &mut self,
-        new_settings: HashMap<Arc<str>, LspSettings>,
-    ) -> Option<HashMap<Arc<str>, LspSettings>> {
+        new_settings: HashMap<LanguageServerName, LspSettings>,
+    ) -> Option<HashMap<LanguageServerName, LspSettings>> {
         match &mut self.mode {
             LspStoreMode::Ssh(SshLspStore {
                 current_lsp_settings,
@@ -933,7 +933,7 @@ impl LspStore {
                 if !language_settings(Some(language), file.as_ref(), cx).enable_language_server {
                     language_servers_to_stop.push((worktree_id, started_lsp_name.clone()));
                 } else if let Some(worktree) = worktree {
-                    let server_name = &adapter.name.0;
+                    let server_name = &adapter.name;
                     match (
                         current_lsp_settings.get(server_name),
                         new_lsp_settings.get(server_name),
@@ -4765,7 +4765,7 @@ impl LspStore {
         let project_id = self.project_id;
         let worktree_id = worktree.read(cx).id().to_proto();
         let upstream_client = ssh.upstream_client.clone();
-        let name = adapter.name().to_string();
+        let name = adapter.name();
 
         let Some(available_language) = self.languages.available_language_for_name(&language) else {
             log::error!("failed to find available language {language}");
@@ -4783,7 +4783,7 @@ impl LspStore {
                 }
             };
 
-            let name = adapter.name().to_string();
+            let name = adapter.name();
             let code_action_kinds = adapter
                 .adapter
                 .code_action_kinds()
@@ -4809,7 +4809,7 @@ impl LspStore {
                 .request(proto::CreateLanguageServer {
                     project_id,
                     worktree_id,
-                    name,
+                    name: name.0.to_string(),
                     binary: Some(language_server_command),
                     initialization_options,
                     code_action_kinds,
@@ -4892,7 +4892,7 @@ impl LspStore {
         );
 
         // We need some on the SSH client, and some on SSH host
-        let lsp = project_settings.lsp.get(&adapter.name.0);
+        let lsp = project_settings.lsp.get(&adapter.name);
         let override_options = lsp.and_then(|s| s.initialization_options.clone());
 
         let server_id = pending_server.server_id;
@@ -5078,7 +5078,7 @@ impl LspStore {
 
     async fn shutdown_language_server(
         server_state: Option<LanguageServerState>,
-        name: Arc<str>,
+        name: LanguageServerName,
         cx: AsyncAppContext,
     ) {
         let server = match server_state {
@@ -5123,7 +5123,7 @@ impl LspStore {
         let key = (worktree_id, adapter_name);
         if self.mode.is_local() {
             if let Some(server_id) = self.language_server_ids.remove(&key) {
-                let name = key.1 .0;
+                let name = key.1;
                 log::info!("stopping language server {name}");
 
                 // Remove other entries for this language server as well
@@ -7168,7 +7168,7 @@ impl LspAdapter for SshLspAdapter {
 }
 pub fn language_server_settings<'a, 'b: 'a>(
     delegate: &'a dyn LspAdapterDelegate,
-    language: &str,
+    language: &LanguageServerName,
     cx: &'b AppContext,
 ) -> Option<&'a LspSettings> {
     ProjectSettings::get(