src/vs/workbench/contrib/comments/browser/commentsEditorContribution.ts/CommentController/updateEditorLayoutOptions
class CommentController:	private updateEditorLayoutOptions(editor: ICodeEditor, extraEditorClassName: string[], lineDecorationsWidth: number) {
		editor.updateOptions({
			extraEditorClassName: extraEditorClassName.join(' '),
			lineDecorationsWidth: lineDecorationsWidth
		});
	}