LSP: diagnostic picker message and code have no separation

helix-term/src/commands/lsp.rs

@@ -26,9 +26,7 @@ use crate::{
     },
 };
 
-use std::{
-    borrow::Cow, cmp::Ordering, collections::BTreeMap, fmt::Write, path::PathBuf, sync::Arc,
-};
+use std::{cmp::Ordering, collections::BTreeMap, fmt::Write, path::PathBuf, sync::Arc};
 
 /// Gets the language server that is attached to a document, and
 /// if it's not active displays a status message. Using this macro
@@ -132,13 +130,13 @@ impl ui::menu::Item for PickerDiagnostic {
         // remove background as it is distracting in the picker list
         style.bg = None;
 
-        let code: Cow<'_, str> = self
+        let code = self
             .diag
             .code
             .as_ref()
             .map(|c| match c {
-                NumberOrString::Number(n) => n.to_string().into(),
-                NumberOrString::String(s) => s.as_str().into(),
+                NumberOrString::Number(n) => format!(" ({n})"),
+                NumberOrString::String(s) => format!(" ({s})"),
             })
             .unwrap_or_default();