r189901 - clang-cl: Avoid confusing diagnostics when clang-cl is called just cl.exe

[Kim Gräsman]

Hi Reid,

On Wed, Sep 4, 2013 at 5:13 AM, Reid Kleckner <rnk at google.com> wrote:
> On Tue, Sep 3, 2013 at 6:46 PM, Richard Smith <richard at metafoo.co.uk> wrote:
>>
>> Also, is it feasible to add a test for this?
>
> A symlink on *nix would suffice, but on Windows it would require a stub to
> call CreateProcess on an executable with a modified argv[0] value.  It
> didn't seem worth it.

GnuWin32 (at least on my machine, v5.3.0.1936) has a Windows version
of the ln command, so if you're using lit tests for this you should be
able to create hard links in a portable manner.

- Kim