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

[Richard Smith via cfe-commits]

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
>
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