extensions/typescript-language-features/src/task/taskProvider.ts/TscTaskProvider/constructor
class TscTaskProvider:	public constructor(
		private readonly client: Lazy<ITypeScriptServiceClient>
	) {
		super();
		this.tsconfigProvider = new TsConfigProvider();

		this._register(vscode.workspace.onDidChangeConfiguration(this.onConfigurationChanged, this));
		this.onConfigurationChanged();
	}