r257947 - Avoid self-assignment of SmallString, trigger UB behavior down the road.

[Hans Wennborg via cfe-commits]

Merged in r258715.

On Mon, Jan 25, 2016 at 11:39 AM, Hans Wennborg <hans at chromium.org> wrote:
> Joerg, do you want to go ahead and merge this to 3.8 with
> utils/release/merge.sh? (Or let me know if you'd prefer me to do it.)
>
> On Sun, Jan 24, 2016 at 11:29 PM, Richard Smith <richard at metafoo.co.uk> wrote:
>> Approved for branch.
>>
>> On 23 Jan 2016 11:56 p.m., "Joerg Sonnenberger" <joerg at britannica.bec.de>
>> wrote:
>>>
>>> On Sat, Jan 16, 2016 at 03:51:11PM +0100, Joerg Sonnenberger via
>>> cfe-commits wrote:
>>> > Hello Richard,
>>> > can this be merged into 3.8? It creates some trivial noise under
>>> > valgrind.
>>>
>>> Ping?
>>>
>>> Joerg