extensions/markdown-language-features/server/src/configuration.ts/ConfigurationManager/constructor
class ConfigurationManager:	constructor(connection: Connection) {
		super();

		// The settings have changed. Is send on server activation as well.
		this._register(connection.onDidChangeConfiguration((change) => {
			this._settings = change.settings;
			this._onDidChangeConfiguration.fire(this._settings!);
		}));
	}