Use ?. in a few more places

src/vs/workbench/services/editor/browser/editorService.ts

@@ -152,7 +152,7 @@ export class EditorService extends Disposable implements EditorServiceImpl {
 
 		for (const handler of this.openEditorHandlers) {
 			const result = handler(event.editor, event.options, group);
-			const override = result ? result.override : undefined;
+			const override = result?.override;
 			if (override) {
 				event.prevent((() => override.then(editor => withNullAsUndefined(editor))));
 				break;
@@ -161,9 +161,7 @@ export class EditorService extends Disposable implements EditorServiceImpl {
 	}
 
 	get activeControl(): IVisibleEditor | undefined {
-		const activeGroup = this.editorGroupService.activeGroup;
-
-		return activeGroup ? activeGroup.activeControl : undefined;
+		return this.editorGroupService.activeGroup?.activeControl;
 	}
 
 	get activeTextEditorWidget(): ICodeEditor | IDiffEditor | undefined {

src/vs/workbench/services/history/browser/history.ts

@@ -482,7 +482,7 @@ export class HistoryService extends Disposable implements IHistoryService {
 	}
 
 	private handleEditorEventInHistory(editor?: IBaseEditor): void {
-		const input = editor ? editor.input : undefined;
+		const input = editor?.input;
 
 		// Ensure we have at least a name to show and not configured to exclude input
 		if (!input || !input.getName() || !this.include(input)) {