src/vs/base/node/processes.ts/LineProcess/constructor
class LineProcess:	public constructor(arg1: string | Executable, arg2?: string[], arg3?: boolean | ForkOptions, arg4?: CommandOptions) {
		super(<any>arg1, arg2, <any>arg3, arg4);

		this.stdoutLineDecoder = null;
		this.stderrLineDecoder = null;
	}