src/vs/workbench/contrib/comments/browser/commentThreadWidget.ts/CommentThreadWidget/_createAdditionalActions
class CommentThreadWidget:	private _createAdditionalActions() {
		this._additionalActions = this._scopedInstatiationService.createInstance(
			CommentThreadAdditionalActions,
			this._body.container,
			this._commentThread,
			this._contextKeyService,
			this._commentMenus,
			this._containerDelegate.actionRunner,
		);

		this._register(this._additionalActions);
	}