[m-rev.] for review: Fix array.sort.

[Julien Fischer]

On Fri, 10 Oct 2014, Peter Wang wrote:

> Branches: master, 14.01
>
> array.sort was broken since 2001 when the implementation was changed
> from merge sort to SAM sort.

Ouch!

> library/array.m:
> 	Fix the confusion as to which output argument of samsort_up is
> 	sorted.
>
> 	Add optional runtime checks of the pre- and post-conditions
> 	of samsort_up and samsort_down when built with a trace flag.
>
> 	Add array.sort_fix_2014.
>
> tests/hard_coded/Mmakefile:
> tests/hard_coded/array_sort.exp:
> tests/hard_coded/array_sort.m:
> 	Add test program.
>
> NEWS:
> 	Announce the fix.

The diff looks fine.

Cheers,
Julien.