[patch libstdc++] Fix assignability check in uninitialized_copy

[Eelis]

On 2014-12-28 01:52, Jonathan Wakely wrote:
> Thanks for the patch - it should be sent to this list and the
> gcc-patches one too

Done.

> and tested ...
>
> Do you have DejaGnu installed?

I installed it, and now "make -k check-c++" runs and produces many many screenfuls of sophisticated looking output, but I don't know whether the output is trying to tell me "something broke" or "nothing broke". :/ Is there a specific line I'm looking for?