Fix lint

src/server/session.ts

@@ -3058,9 +3058,7 @@ export class Session<TMessage = string> implements EventSender {
             codeActions = project.getLanguageService().getCodeFixesAtPosition(file, startPosition, endPosition, args.errorCodes, this.getFormatOptions(file), this.getPreferences(file));
         }
         catch (e) {
-            if (!(e instanceof Error)) {
-                e = new Error(e);
-            }
+            const error = e instanceof Error ? e : new Error(e);
 
             const ls = project.getLanguageService();
             const existingDiagCodes = [
@@ -3072,9 +3070,9 @@ export class Session<TMessage = string> implements EventSender {
                 .map(d => d.code);
             const badCode = args.errorCodes.find(c => !existingDiagCodes.includes(c));
             if (badCode !== undefined) {
-                e.message += `\nAdditional information: BADCLIENT: Bad error code, ${badCode} not found in range ${startPosition}..${endPosition} (found: ${existingDiagCodes.join(", ")})`;
+                error.message += `\nAdditional information: BADCLIENT: Bad error code, ${badCode} not found in range ${startPosition}..${endPosition} (found: ${existingDiagCodes.join(", ")})`;
             }
-            throw e;
+            throw error;
         }
         return simplifiedResult ? codeActions.map(codeAction => this.mapCodeFixAction(codeAction)) : codeActions;
     }