src/vs/editor/contrib/message/browser/messageController.ts/MessageWidget/getPosition
class MessageWidget:	getPosition(): IContentWidgetPosition {
		return {
			position: this._position,
			preference: [
				ContentWidgetPositionPreference.ABOVE,
				ContentWidgetPositionPreference.BELOW,
			],
			positionAffinity: PositionAffinity.Right,
		};
	}