Review: A new stab at a potential std.unittests

[Sean Kelly]

Jonathan M Davis Wrote:
> 
> In particular, needing to pass LineInfo() to assertExcThrown!() to know the file 
> and line number was disliked (though it was by far the best solution that I'd 
> been able to come up with).

Not sure if this helps, but if you default-initialize template function parameters with __LINE__ and __FILE__ they get the line and file of where the template was instantiated.