src/vs/workbench/api/browser/mainThreadComments.ts/MainThreadComments/$updateCommentControllerFeatures
class MainThreadComments:	$updateCommentControllerFeatures(handle: number, features: CommentProviderFeatures): void {
		const provider = this._commentControllers.get(handle);

		if (!provider) {
			return undefined;
		}

		provider.updateFeatures(features);
	}