[phobos] Silent failure of std.container unittests

[Benjamin Shropshire]

Michel Fortin wrote:
> Walter had a point... what if you want to test multiple outputs of the same function on one go? Here's an example:
>
> 	unittest {
> 		int[3] result = makeSomeTable(399, 383, 927);
> 		assert(result[0] == 281);
> 		assert(result[1] == 281);
> 		assert(result[2] == 281);
> 	}
>
> Here, each assert is independent one from another and knowing that the first and the third fails but not the second might help diagnose the problem.
>
> I think Jonathan's idea is quite on the spot. It'd allow you to write this:
>
> 	unittest {
> 		int[3] result = makeSomeTable(399, 383, 927);
> 		unittest { assert(result[0] == 281); }
> 		unittest { assert(result[1] == 281); }
> 		unittest { assert(result[2] == 281); }
> 	}
>
> and each "unittest assert" becomes an independent test that may fail but without interrupting the flow of the outside scope.

That the use mode I was thinking of. Right after I hit send, I realized 
that what I had said would include allowing unittests in main.