RFR(XS): 8064786: Fix debug build after 8062808: Turn on the -Wreturn-type warning

[Stefan Karlsson]

On 2014-11-13 11:20, Lindenmaier, Goetz wrote:
> Hi,
>
> please review, test and sponsor this tiny change.  It fixes the debug build in the gc repository.
> https://bugs.openjdk.java.net/browse/JDK-8064786
> http://cr.openjdk.java.net/~goetz/webrevs/8064786-warnRet/webrev.00/

Looks good. Thanks for fixing. Another approach would be to just remove 
the ShouldNotReachHere() lines.

I'll push when we get another review.

thanks,
StefanK

>
> Best regards,
>    Goetz.