fix rename feature (#86)

* fix rename feature

* Update fileConfigurationManager.ts

src/server/features/fileConfigurationManager.ts

@@ -146,6 +146,7 @@ export default class FileConfigurationManager {
       quotePreference: config.get<'single' | 'double' | 'auto'>('preferences.quoteStyle', defaultQuote),
       allowRenameOfImportPath: true,
       allowTextChangesInNewFiles: true,
+      providePrefixAndSuffixTextForRename: true,
     }
   }
 }

src/server/features/rename.ts

@@ -98,7 +98,7 @@ export default class TypeScriptRenameProvider implements RenameProvider {
         for (const textSpan of spanGroup.locs) {
           changes[uri].push({
             range: typeConverters.Range.fromTextSpan(textSpan),
-            newText: newName
+            newText:  (textSpan.prefixText || '') + newName + (textSpan.suffixText || '')
           })
         }
       }