r201604 - clang-cl /fallback: emit a note when falling back

[Chandler Carruth]

On Tue, Feb 18, 2014 at 3:33 PM, Hans Wennborg <hans at chromium.org> wrote:

> On Tue, Feb 18, 2014 at 3:08 PM, Reid Kleckner <rnk at google.com> wrote:
> > We don't generally emit notes that aren't attached to warnings.  This
> seems
> > fine to me in this instance.
>
> Yes, I figured printing a warning or error would be weirder though.
>
> One other place where we print a note like this is when preparing
> crash reports. I think this situation is kinda similar.


I would much prefer a warning.

Notes are routinely skipped entirely by parsing logic unless attached to a
warning or other diagnostic.
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