RFR(S): 8145305: fix Nashorn shebang handling on Cygwin

[Hannes Wallnoefer]

+1

Am 2016-01-15 um 11:31 schrieb Michael Haupt:
> Dear all,
>
> please review this fix.
> Bug: https://bugs.openjdk.java.net/browse/JDK-8145305
> Webrev: http://cr.openjdk.java.net/~mhaupt/8145305/webrev.00/
>
> It adapts the test for shebang handling so that it passes on Cygwin. Some documentation extension for NativeArray is piggybacked on the change.
>
> Thanks,
>
> Michael
>