Make formatOptions optional in GetEditsForRefactorRequestArgs

src/server/protocol.ts

@@ -494,7 +494,7 @@ namespace ts.server.protocol {
         refactor: string;
         /* The 'name' property from the refactoring action */
         action: string;
-        formatOptions: FormatCodeSettings,
+        formatOptions?: FormatCodeSettings,
     };
 
 

src/server/session.ts

@@ -1488,7 +1488,7 @@ namespace ts.server {
 
             const result = project.getLanguageService().getEditsForRefactor(
                 file,
-                convertFormatOptions(args.formatOptions),
+                args.formatOptions ? convertFormatOptions(args.formatOptions) : this.projectService.getFormatCodeOptions(),
                 position || textRange,
                 args.refactor,
                 args.action