std.math.pow produces incorrect results when used with std.parallelism

[finalpatch]

Bug reported as #58
http://bugzilla.gdcproject.org/show_bug.cgi?id=58
I have added the output from feqrel to the report.

On Sunday, 2 June 2013 at 08:28:42 UTC, Johannes Pfau wrote:
>> 
>> The same code passes without assertion when compiled with DMD.
>
> Please file a bug report on bugzilla.gdcproject.org
>
> I can't reproduce this on linux/posix. Could you use feqrel to 
> check
> the number of equal bits of the single/multithreaded results?