src/vs/workbench/contrib/tasks/common/tasks.ts/ConfiguringTask/constructor
class ConfiguringTask:	public constructor(id: string, source: FileBasedTaskSource, label: string | undefined, type: string | undefined,
		configures: KeyedTaskIdentifier, runOptions: RunOptions, configurationProperties: ConfigurationProperties) {
		super(id, label, type, runOptions, configurationProperties, source);
		this._source = source;
		this.configures = configures;
	}